TWI839700B - Laser devices for dentistry - Google Patents

Abstract

The present invention is a laser device for dentistry, which is provided with a main body, a light source group and a light guide. The main body is provided with an outer shell, an operating module and a control module. The light source group is arranged in the main body and is provided with a plurality of light-emitting components, a reflector, a collimator and a focusing lens. Each of the light-emitting components is a laser diode, which is arranged at the joint and electrically connected to the control module. The reflector is coated on the outside of the plurality of light-emitting components. The collimator is arranged on a side of the reflector away from the plurality of light-emitting components. The focusing lens is arranged on a side of the collimator away from the reflector. The light guide is detachably combined with the joint of the main body and is located at the front side of the light source group, so as to provide a laser device for dentistry that improves the curing effect, increases the application range and is convenient to use.

Description

Laser devices for dentistry

The present invention relates to a laser device, in particular a laser device for dental use that improves curing effect, increases application range and is easy to use.

According to the existing photopolymer, which is generally also called light-activated resin, it means that the properties of the polymer can be changed after exposure. The light used to excite the polymer can be in the wavelength range from visible light to ultraviolet light. It has been applied in many fields. For example, adding photopolymer to enamel can make the enamel cure quickly after exposure to light. It can also be applied in fields such as medicine and printing. However, photopolymers of different materials need to be used with light sources of corresponding wavelengths.

Currently, when treating dental caries in clinical dentistry, the defective part is treated by filling. The filling materials include silver powder, composite resin or ceramic materials. Silver powder has aesthetic problems due to its color, and there are concerns about mercury pollution. Therefore, the industry has rarely used silver powder as a filling material for teeth. Ceramic materials have advantages such as high physical strength and good fit, but the price is relatively high, which will cause a burden to patients or consumers. In view of the concerns or problems derived from the above-mentioned silver powder and ceramic materials, composite resin is currently mostly used as the main tooth filling material.

The existing composite resin used for tooth filling contains photocuring agents (photoinitators/photocuring agents), which can cause photopolymerization reaction when combined with a light source of a specific wavelength, and then cure the existing composite resin to fill or seal the defective part of the tooth. The light source used includes halogen lamps, plasma lamps, and light-emitting diodes (LEDs). There are many types of light-curing devices, such as LED lamps and LED lamps. Halogen lamps need to be equipped with filters to generate the light source (blue light) required for light curing. They are prone to high temperatures during use and require cooling fans. They also have problems such as short service life. Although xenon lamps can provide higher brightness than halogen lamps, they have complex structures and high prices. LED lamps have the advantages of low voltage, low cost and long service life. Therefore, most of the existing photopolymerization devices used in dentistry use LED lamps as light sources.

Furthermore, although the existing photopolymerization device used in dentistry can use a LED lamp to perform a photocuring reaction on the composite resin, the LED lamp 60 has a large divergence angle as shown in FIG28 because the LED lamp does not have a resonant cavity. That is, the light of the LED lamp 50 will irradiate a large range on the object, which makes it impossible to concentrate the energy of the LED lamp 60 and to accurately irradiate the required light to the position of the tooth 70 to fill the composite resin 80. Therefore, during the operation process of the photocuring reaction by the LED lamp 60, as shown in FIG29 When irradiating the tooth 70 filled with composite resin 80, the energy of the light emitted by the LED lamp 60 is low, and it is not possible to irradiate the entire composite resin 80 for light curing reaction. Only the composite resin 80 located on the outside can be light cured. Therefore, when the LED lamp 60 is used as a light source, the composite resin 80 can only be filled in a small amount and irradiated multiple times due to poor penetration during the filling process. It is relatively time-consuming and inconvenient to use. In addition, the multiple filling and irradiation methods will also affect the curing effect of the composite resin 80, thereby affecting the treatment effect of the tooth 70.

Furthermore, there are many types of composite resins 80 currently used as tooth filling materials, including TPO (2,4,6-trimethylbenzoyl-diphenylosphine oxide), BAPO (Bisacylphosphine oxide), BP (Benzophenone), CQ (Camphorquinone), PQ (9,10-Phenanthrenequinone), PPD (1-pheneyl-1,2propanedione), TMBOPF (9-(2,4,6-trimethylbenzoyl)-9-oxytho-9-phosphafuluorene), TOPF (9-(p-toluyl)-9-oxytho-9-phosphafuluorene), BTMGe (Benzoyltrimethylgermane), DBDEGe (Dibenzoyldiethylgermane), IVO (Ivocerin-dibenzoyl Germanium) and P3C-SB ((7-ethoxy-4-methylcumarin-3-yl)phenyliodine) are photo-initiator chemical materials. The wavelength range of light absorbed by the above chemical materials is different. Therefore, users often need to choose or purchase dental photopolymerization devices with wavelength light sources corresponding to the chemical materials according to the way they use different chemical materials. , so that the composite resin 80 can produce a photopolymerization reaction after irradiation. When the composite resin 80 used does not correspond to the light source, the composite resin 80 will not be cured or will be incompletely cured, thereby affecting the treatment effect of the tooth 70. The method of purchasing or using corresponding light sources according to different composite resins 80 (i.e., it is necessary to purchase multiple dental photopolymerization devices) will also cause cost and burden for users. Therefore, the existing photopolymerization devices really need to be improved.

In addition, there are currently dental devices that use dental diode lasers. The dental devices can be used to cut gums, cauterize hemostasis, treat periodontal disease, or clean artificial tooth roots. The devices mainly use optical fibers as working media to output laser light through the optical fibers. However, when using existing dental diode laser dental devices, the optical fibers are directly in contact with the treatment area (such as gums or artificial tooth roots). Not only does the use of contact optical fibers increase the cost of consumables, but when the optical fibers are used to treat inflammation of the tissues around the artificial tooth roots, the surface of the artificial tooth roots is easily scratched. The artificial tooth roots with scratched surfaces are not good. It is conducive to the attachment of new bone, thus affecting the stability of the artificial root set on the gum. In addition, water vapor, hemoglobin and hydroxyapatite (one of the main components of bone) have a high absorption rate for laser light in the 2980 nanometer band, which will burn and destroy the surrounding medium that stabilizes the artificial root, which is not conducive to the setting of the artificial root. In addition, the use of optical fiber as the working medium of the laser makes the laser light emit in a divergent manner and cannot be focused, making its energy low and limiting its effectiveness and practicality. Therefore, the existing dental equipment used by diode lasers also needs to be improved.

Therefore, the inventor of the present invention has taken into account the defects and shortcomings of the existing photopolymerization devices and dental diode laser dental equipment in terms of structure and use, and after continuous research and testing, has finally developed an invention that can improve the existing defects.

The main purpose of the present invention is to provide a laser device for dental use. The laser device can provide a light source with a small divergence angle and concentrated energy through a simplified structural configuration, and can irradiate the entire composite material filling the tooth without multiple irradiations, thereby effectively improving the curing effect of the composite material. In addition, the laser device can provide multiple light sources with different wavelengths at the same time, and can be applied to composite trees of different chemical materials. Resin materials do not need to be purchased multiple dental laser devices, and can provide a light focusing effect. It is relatively convenient to use and can shorten the time and cost required for light curing reaction. In addition, it can be used for laser surface treatment of artificial tooth roots. It can also be used for jewelry identification, medical equipment disinfection or kitchen supplies sterilization, thereby providing a dental laser device that improves curing effect, expands the scope of application and is easy to use.

To achieve the above-mentioned object, the present invention provides a laser device for dentistry, which comprises: a body, the body is provided with a shell, an operating module and a control module, the shell is provided with a joint at a free end, the operating module is provided on the shell, the control module is provided in the shell and is electrically connected to the operating module; and a light source assembly, the light source assembly is provided in the body and is provided with at least one light-emitting element and a collimator, The at least one light emitting element is disposed in the outer shell and electrically connected to the control module. The at least one light emitting element is a laser diode. The collimator is disposed at the joint of the outer shell to form a parallel light beam emitted by the at least one light emitting element. The at least one light emitting element has multiple light sources and can emit multiple light sources of different or same wavelengths, which has a single multi-band effect or a single single-band intensity increase effect.

Furthermore, in the aforementioned laser device for dentistry, the light source of the at least one light-emitting element can be used to detect whether an object has cracks.

Furthermore, in the aforementioned laser device for dentistry, the light source of at least one light-emitting element can be used for disinfection and sterilization of instruments.

To achieve the above-mentioned object, the present invention further provides a laser device for dentistry, which comprises: a body, the body is provided with an outer shell, an operating module and a control module, the outer shell is provided with a joint at a free end, the operating module is provided on the outer shell, the control module is provided in the outer shell and is electrically connected to the operating module; a light source group, the light source group is provided in the body and is provided with a plurality of light-emitting elements, a reflector, a collimator and a focusing lens, wherein each of the light-emitting elements is provided at the joint of the outer shell and is electrically connected to the control module, and each of the light-emitting elements is a laser diode. , the reflector is arranged at the joint of the housing and covers the outside of the plurality of light emitting elements, the collimator is arranged at one side of the reflector away from the plurality of light emitting elements, and the focusing lens is arranged at one side of the collimator away from the reflector, wherein each of the light emitting elements has a plurality of light sources and can emit a plurality of light sources of different or same wavelengths, having a single multi-band effect or a single single-band intensity increase effect; and a light guide, which is detachably combined with the joint of the body and is located at the front side of the light source group, for guiding the light emitted by the light source group out of the laser device for dentistry.

Furthermore, as described above, in the laser device for dentistry, the reflector is provided with a reflective surface which is tapered outward from the plurality of light-emitting elements, and the joint is provided with a concave mirror which is arranged behind the plurality of light-emitting elements, so that the light emitted by the plurality of light-emitting elements is reflected by the reflective surface and the concave mirror and then emitted from the reflector.

Furthermore, in the aforementioned laser device for dentistry, the reflector is a total reflection mirror.

Preferably, the laser device for dentistry as described above, wherein the light source assembly is provided with three laser diodes spaced apart on the joint, and the light wavelengths of the three laser diodes are 405 nm, 455 nm and 488 nm respectively.

Preferably, in the laser device for dentistry as described above, the operating module of the main body can control the three laser diodes through the control module, so that the three laser diodes can emit light at the same time or individually or two of them can emit light.

Preferably, the laser device for dentistry as described above, wherein each of the light-emitting elements is an edge-emitting laser diode, a single-face-emitting laser diode or a multilayer laser diode.

Preferably, as described above, the laser device for dentistry has three laser diodes arranged at intervals on the joint, and the wavelengths of the three laser diodes are three primary colors. The light source set can generate three primary colors of light after being powered on, and after adding them together, the laser device emits white light or mixes laser light of other wavelengths.

Preferably, the laser device used for dentistry as described above, wherein the light source used in the present invention can also use a laser with a corresponding wavelength as the light source as the development of dental polymer materials.

Preferably, the laser device for dentistry as described above, wherein the main body is provided with a light shielding plate, and the light shielding plate is provided at the joint of the outer shell.

Preferably, the laser device for dental use as described above, wherein the housing can be composed of two housing halves that are relatively joined together.

Preferably, the laser device for dentistry as described above, wherein the operating module is disposed on the housing and is provided with a plurality of control buttons and a display screen.

Preferably, the laser device for dentistry as described above, wherein the light pipe is provided with a reflector inside, and the laser device for dentistry is provided with a support assembly inside the light pipe and combined with the reflector, the support assembly is provided with a fixing plate combined with the joint part of the housing, a supporting arm connected to the fixing plate, and a supporting frame combined with the supporting arm and the reflector.

Preferably, the laser device for dentistry as described above, wherein the support frame is provided with two holding plates and a connecting plate, wherein the two holding plates are spaced apart on both sides of the support frame, the connecting plate is provided at the middle section of the support frame and is spaced apart from the two holding plates, a clamping space is formed between the two holding plates and the connecting plate, the support arm is provided with a coupling section coupled with the connecting plate of the support frame at one end away from the fixing plate, and the reflector is provided in the clamping space of the support frame.

Preferably, the laser device for dentistry as described above, wherein the support assembly is provided with a locking member, and the locking member is locked and combined with the connecting plate of the support frame and the connecting section of the support arm.

To achieve the above-mentioned object, the present invention further provides a laser device for dentistry, which comprises: a body, the body is provided with an outer shell, an operating module and a control module, the outer shell is provided with a joint at a free end, the operating module is provided on the outer shell, the control module is provided in the outer shell and is electrically connected to the operating module; a light source group, the light source group is provided in the body and is provided with a plurality of light-emitting elements, a plurality of collimating lenses, a plurality of focusing lenses and a protective lens, wherein each of the light-emitting elements is provided in the outer shell and is electrically connected to the control module, each of the light-emitting elements is a laser diode, each of the collimating lenses is provided in The outer shell is in correspondence with one of the light-emitting components, each focusing lens is arranged on one side of one of the collimating lenses away from the corresponding light-emitting component, and the protective lens is arranged on the outer shell and on one side of each focusing lens away from the light-emitting components, wherein each light-emitting component has multiple light sources and can emit multiple light sources of different or same wavelengths, having a single multi-band effect or a single single-band intensity increase effect; and a plurality of light guides, each of which is arranged in the outer shell of the main body and between one of the corresponding collimating lenses and the focusing lens of the light source group, for guiding the light emitted by the light source group out of the laser device for dentistry.

To achieve the above-mentioned object, the present invention further provides a laser device for dentistry, which comprises: a body, the body is provided with an outer shell, an operating module and a control module, the outer shell is provided with a joint at a free end, the operating module is provided on the outer shell, the control module is provided in the outer shell and is electrically connected to the operating module; a light source group, the light source group is provided in the body and is provided with a plurality of light-emitting components, a plurality of collimating lenses, a focusing cup, a focusing lens and a reflecting component, wherein each of the light-emitting components is provided at the joint of the outer shell and is electrically connected to the control module, each of the light-emitting components is a laser diode, each of the collimating lenses is provided in the outer shell and is opposite to one of the light-emitting components The focusing cup is arranged at the joint of the outer shell, the focusing lens is arranged at a side of the focusing cup far from the collimating lenses, the reflecting member is arranged between the focusing cup and the focusing lens, the reflecting member is provided with two media with different refractive indices, so that the light emitted through the focusing cup is totally reflected between the two media, wherein each of the light emitting members has multiple light sources and can emit multiple light sources with different or same wavelengths, having a single multi-band effect or a single single-band intensity increase effect; and a light guide, which is detachably combined with the joint of the body and is located outside the reflecting member of the light source group, and is used to guide the light emitted by the light source group out of the laser device for dentistry.

Preferably, the laser device for dentistry as described above, wherein the reflector has an inner light-dense medium and an outer light-sparse medium.

Preferably, the laser device for dentistry as described above is provided with a filter mask combined with the light guide tube, the filter mask has an outer cover portion and an inner guide portion, the outer cover portion is a cone-shaped body that gradually expands from the light guide tube outward, and the inner guide portion is provided in the outer cover portion and gradually contracts from the light guide tube outward.

Preferably, in the laser device for dentistry as described above, each light-emitting element of the light source assembly is a side-emitting laser diode.

Preferably, in the aforementioned laser device for dentistry, each light-emitting element of the light source group forms multiple resonant cavities on a semiconductor substrate through a semiconductor process, and these resonant cavities can generate light sources of the same wavelength or different wavelengths after being excited, so that these light sources can have an effect of increasing intensity or adding.

Preferably, the laser device used in dentistry as described above, wherein the resonant cavities can generate three primary colors of light respectively after being powered on, and after adding them together, the light-emitting element can emit white light or laser light of other wavelengths.

Preferably, in the laser device for dentistry as described above, each light-emitting element of the light source assembly is a multilayer laser diode.

Preferably, in the aforementioned laser device for dentistry, the laser light sources of each light-emitting element of the light source group can be selected and configured according to the characteristics of the dental polymer resin, thereby causing the dental polymer resin to undergo a polymerization reaction.

Preferably, the laser device for dentistry as described above, wherein the body is provided with a coupling portion, the coupling portion having a threaded structure, and the body is provided with a locking cover coupled to the coupling portion, the light guide is provided with a locking ring at one end facing the body that can abut against the locking cover so that the light guide can be rotatably coupled to the body, and the light source assembly is provided with two light-emitting members and a half The two light elements are arranged in the housing in an angled configuration. The semi-transparent mirror is arranged between the two light-emitting elements and is provided with a dielectric film reflective layer. The dielectric film reflective layer is located on a side of the semi-transparent mirror facing the light guide, so that the light emitted by the two light-emitting elements overlaps and is emitted toward the light guide in a straight line after being refracted and transmitted by the semi-transparent mirror.

Preferably, the laser device for dentistry as described above, wherein the two light-emitting elements are disposed in the housing at an angle of 90°.

Preferably, in the aforementioned laser device for dentistry, a focusing lens is provided between each light-emitting element and the semi-transparent lens, so that the light emitted by each light-emitting element is first focused by the corresponding focusing lens and then emitted to the semi-transparent lens.

Preferably, in the laser device for dentistry as described above, a collimator is provided between each light-emitting element and the semi-transparent mirror, and a focusing lens is provided on the path of the light emitted by the semi-transparent mirror.

Preferably, as described above, the laser device for dentistry is provided in the housing with a holder for positioning the semi-transparent mirror. The holder is fixed in the housing and provided with a positioning groove and two light guide channels. The positioning groove is recessed in the middle of the holder for clamping and fixing the semi-transparent mirror on the holder. Each of the light guide channels passes through two opposite side surfaces of the holder and communicates with the positioning groove. The two light guide channels are used for the light sources of the two light-emitting components to be directed to the semi-transparent mirror for refraction and transmission respectively.

Preferably, in the laser device used for dentistry as described above, one of the light emitting elements of the light source assembly emits a laser beam in the visible light band, and the other light emitting element emits a laser beam in the invisible light band. The laser beam in the visible light band can be used as a guide beam, and the laser beam in the invisible light band can be used as a treatment beam.

Preferably, the laser device for dentistry as described above is provided with a fluid pipeline for conveying fluid on the outside of the light guide tube.

Preferably, the laser device for dentistry as described above can be used for laser surface treatment of artificial tooth roots, and can be used for non-contact cutting and burning of soft and hard tissues.

Preferably, the laser device for dental use as described above has a window for observation in the housing.

Preferably, in the aforementioned laser device for dentistry, the laser light sources of each light-emitting element of the light source group can be selected and configured according to the characteristics of the dental polymer resin, thereby causing the dental polymer resin to undergo a polymerization reaction.

With the above technical features, the light source set of the laser device for dentistry of the present invention uses a laser diode as a light-emitting element, and is used in conjunction with a reflector, a collimator, and a focusing lens, so that the light source emitted by the light source set has high penetration, collimation, and coherence. It can not only be applied to jewelry identification (whether there are cracks or other fillings), medical equipment disinfection, and nail painting (curing pigments), but also can be used by combining multiple sets of laser devices for dentistry with a box to form a disinfection space in the box, and then can be applied to the disinfection and sterilization of kitchen tableware or surgical equipment; in addition, because the body is small in size, it is convenient to carry around and can be used by users to disinfect their hands, so that the laser device for dentistry of the present invention has a wide range of applications.

In dental use, the irradiation can penetrate into the interior of the composite resin filling the teeth, and the composite resin as a whole can be photopolymerized, so that the composite resin as a whole can be photocured, which is relatively convenient to operate, saves time, and can improve the tightness of the tooth filling. Furthermore, the laser device used in dentistry of the present invention is provided with three light-emitting components of different wavelengths at the joint of the main body, or two light-emitting components arranged at an angle are used in combination with the semi-transparent lens, and a single light source of two different wavelengths and overlapped and arranged in a straight line is used, so when using composite materials of different chemical materials, When compounding resins, the light sources of corresponding wavelengths can be provided through the light emitting components of different wavelengths. Not only can composite resins of different chemical materials be photocured through a single dental laser device, but there is no need to purchase multiple dental laser devices. This can significantly reduce the expenses and costs required for use, and can increase the application range of dental laser devices. Composite resins of different chemical materials can be photocured accurately, effectively avoiding the phenomenon of failure to cure or incomplete curing, and relatively improving the treatment quality of tooth fillings.

Furthermore, the light source set of the laser device used in dentistry of the present invention can generate at least one or more light sources of the same (synchronous) or different wavelengths (asynchronous), so that the user can use them according to the needs, and can increase the light intensity or increase the use range of the light source by adding the light sources, and when used in a non-contact manner on the treatment site (such as the gums or artificial tooth roots), not only can the non-contact irradiation method be used, but also the light source can be used to treat the tooth surface. Reduce the loss and cost of materials (optical fiber), and clean the artificial tooth root by irradiating the light source and perform laser surface treatment, without scratching the surface of the artificial tooth root, so that the artificial tooth root after cleaning is restored to the original metal surface state, which is conducive to the attachment of new bone, thereby improving the stability of the artificial tooth root set on the gum, and thus providing a laser device for dentistry that improves the curing effect, expands the application range and is easy to use.

10A, 10B: Body

11A, 11B, 11C, 11G: Shell

12A, 12B: Operation module

121A,121B: Control button

122B: Display screen

13A, 13B: Control module

14B: Sunshade

15A, 15B, 15G: junction

151B: Concave mirror

16G: Locking cover

17G: Windows

20A, 20B, 20C, 20D, 20E, 20G: Light source set

21A, 21B, 21C, 21D, 21F, 21G: Light-emitting components

22B, 22D: Reflective parts

221B: Reflective surface

222D: Optically dense medium

223D: Optically sparse medium

23A, 23B, 23C, 23D: Collimator

24B, 24C, 24D, 24G, 24G’: Focusing lens

25C: Protective lens

26D: Spotlight Cup

27G: Semi-transparent lens

271G: Dielectric film reflective layer

28G: Clamp

281G: Positioning slot

282G: Light-guiding channel

29G: Vibration mirror module

30B, 30C, 30D, 30E, 30G: light guide tube

31B,31G: Reflector

32G: Card setting environment

33G: Fluid pipeline

40B: Support group

41B: Fixed plate

411B: Perforation

42B: Support arm

421B: Binding segment

43B: Support frame

431B:Maintenance board

432B:Connector plate

44B: Lock firmware

50E: filter mask

51E: Outer cover

52E: Internal Guidance Department

60: LED lamp

70: Teeth

80:Compound resin

90: Artificial tooth root

S: Light spot

C: Resonance cavity

Figure 1 is a three-dimensional external view of the first preferred embodiment of the laser device for dentistry of the present invention.

Figure 2 is a cross-sectional side view of the first preferred embodiment of the laser device for dentistry of the present invention.

Figure 3 is a schematic diagram of the circuit block of the first preferred embodiment of the laser device for dentistry of the present invention.

Figure 4 is a three-dimensional external view of the second preferred embodiment of the laser device for dentistry of the present invention.

Figure 5 is a partially enlarged three-dimensional schematic diagram of the second preferred embodiment of the laser device for dentistry of the present invention.

Figure 6 is a partially enlarged side view of the light source assembly of the second preferred embodiment of the laser device for dentistry of the present invention.

Figure 7 is a partially enlarged side view of the light guide of the second preferred embodiment of the laser device for dentistry of the present invention.

Figure 8 is a schematic diagram of the circuit block of the second preferred embodiment of the laser device for dentistry of the present invention.

Figure 9 is a schematic diagram of the operation of the light source assembly of the second preferred embodiment of the laser device for dentistry of the present invention.

FIG10 is a schematic diagram of the operation of the light source assembly of the second preferred embodiment of the laser device for dentistry of the present invention for tooth filling.

Figure 11 is a three-dimensional external view of the clamping assembly of the second preferred embodiment of the laser device for dentistry of the present invention.

Figure 12 is another three-dimensional external view of the clamping assembly of the second preferred embodiment of the laser device for dentistry of the present invention.

Figure 13 is a three-dimensional exploded view of the clamping assembly of the second preferred embodiment of the laser device for dentistry of the present invention.

Figure 14 is a partially enlarged three-dimensional exploded view of the clamping assembly of the second preferred embodiment of the laser device for dentistry of the present invention.

Figure 15 is a partially enlarged side cross-sectional view of the third preferred embodiment of the laser device for dentistry of the present invention.

Figure 16 is a partially enlarged side cross-sectional view of the fourth preferred embodiment of the laser device for dentistry of the present invention.

Figure 17 is a schematic diagram of the operation of the fourth preferred embodiment of the laser device for dentistry of the present invention when in use.

Figure 18 is another schematic diagram of the operation of the fourth preferred embodiment of the laser device for dentistry of the present invention when in use.

Figure 19 is a three-dimensional external view of the fifth preferred embodiment of the laser device for dentistry of the present invention.

Figure 20 is a partially enlarged three-dimensional external view of the fifth preferred embodiment of the laser device for dentistry of the present invention.

Figure 21 is a partially enlarged schematic diagram of the operation of the fifth preferred embodiment of the laser device for dentistry of the present invention.

Figure 22 is a schematic diagram of the operation of the light source assembly of the sixth preferred embodiment of the laser device for dentistry of the present invention.

Figure 23 is a schematic diagram of the structural configuration of the light source group of the sixth preferred embodiment of the laser device for dentistry of the present invention.

Figure 24 is a schematic diagram of the structural configuration of the light source group of the seventh preferred embodiment of the laser device for dentistry of the present invention.

Figure 25 is a schematic diagram of the operation of the light source assembly of the eighth preferred embodiment of the laser device for dentistry of the present invention.

Figure 26 is a three-dimensional enlarged view of the holder of the light source assembly of the seventh and eighth preferred embodiments of the laser device for dentistry of the present invention.

Figure 27 is a schematic diagram of the eighth preferred embodiment of the laser device used in dentistry of the present invention for cleaning and surface treatment of artificial tooth roots.

Figure 28 is a schematic diagram of the operation of an existing LED lamp.

Figure 29 is a schematic diagram of the existing operation of using a LED lamp for tooth filling.

In order to understand the technical features and practical effects of the present invention in detail and to implement them according to the contents of the manual, the preferred embodiment shown in the drawings is further described in detail as follows: The present invention is a laser device for dentistry. Please refer to the first preferred embodiment shown in Figures 1, 2 and 3. The laser device for dentistry is provided with a body 10A and a light source set 20A, wherein: the body 10A is provided with a shell 11A, an operating module 12A and a control module 13A, and the shell 11A can be held by a user. In use, the outer shell 11A is provided with a joint 15A at the free end, the operating module 12A is provided on the outer shell 11A and is provided with a control button 121A, as shown in FIG3 , the control module 13A is provided in the outer shell 11A and is electrically connected to the operating module 12A, so that the operating module 12A can control the light source set 20A through the control module 13A, wherein the detailed structure and operating principle of the operating module 12A and the control module 13A are the same as the prior art, and will not be elaborated here.

The light source assembly 20A is disposed in the body 10A and is provided with at least one light emitting element 21A and a collimator 23A, wherein each of the light emitting elements 21A is disposed in the housing 11A and is electrically connected to the control module 13A, and the at least one light emitting element 21A is a laser diode (LD), wherein the laser diode (LD) has the advantages of small divergence angle, concentrated light source (high light density), small distance attenuation and coherence. Preferably, the at least one light emitting element 21A can be an edge emitting laser diode (EELD) or a surface emitting laser diode (SELD). Furthermore, the present invention can also use a stack laser diode (LD). Diode) as the light emitting element 21A, wherein the multilayer laser diode has a single multi-band effect, or a single single-band intensity increase effect. In addition, the light emitting element 21A used in the present invention can also select a corresponding multi-band light source with the development of technology; preferably, the light source used in the present invention can also use a laser with a corresponding wavelength as the light source with the development of dental polymer materials. The collimator 23A is arranged at the joint 15A of the housing 11A to form the light beam emitted by the at least one light emitting element 21A into a parallel beam or focus it at a specific focal point.

As shown in Figures 1 to 3, the first preferred embodiment of the laser device for dentistry of the present invention, since the at least one light-emitting element 21A is a laser diode, it has physical characteristics such as small divergence angle, concentrated light source (high light density), and small distance attenuation, so it can be applied to the fields of jewelry identification (whether there are cracks or other fillings), medical equipment disinfection and nail painting (curing pigment), and can form a disinfection space in the box by matching multiple sets of laser devices for dentistry with a box, and then can be applied to the disinfection and sterilization of kitchen tableware or surgical equipment; in addition, because the body 10A is small in size, it is convenient to carry around and can be used by users for hand disinfection, so that the laser device for dentistry of the present invention has a wide range of applications.

Please refer to the second preferred embodiment shown in Figures 4 to 8. The laser device for dentistry is provided with a body 10B, a light source set 20B and a light guide 30B, wherein: The body 10B is provided with a shell 11B, an operating module 12B, a control module 13B and a light shielding plate 14B. The shell 11B can be held by a user. The shell 11B is provided with a joint portion 15B at the free end, and the joint portion 15B is concavely provided with a concave mirror 151B. Preferably, the shell 11B can be composed of two half shells that are relatively combined. The operating module 12B is provided on the shell 11B. B and is provided with several control buttons 121B and a display screen 122B. The control module 13B is arranged in the housing 11B and is electrically connected to the operating module 12B, so that the operating module 12B can control the light source set 20B through the control module 13B. The detailed structure and operation principle of the operating module 12B and the control module 13B are the same as those of the prior art and will not be elaborated here. The shading plate 14B is arranged at the joint 15B of the housing 11B to provide a light shielding effect to prevent the light of the light source set 20B from causing damage to the user's eyes.

As shown in FIG. 5 , FIG. 6 and FIG. 8 , the light source assembly 20B is disposed in the body 10B and is provided with a plurality of light emitting elements 21B, a reflector 22B, a collimator 23B and a focusing lens 24B, wherein each of the light emitting elements 21B is disposed at the junction 15B of the housing 11B and is electrically connected to the control module 13B, and the concave mirror 151B of the junction 15B is disposed behind the plurality of light emitting elements 21B, and each of the light emitting elements 21B is a laser diode (LD), wherein the laser diode has the advantages of small divergence angle, concentrated light source (high light density), small distance attenuation and coherence (coherence), etc. Preferably, each of the light emitting elements 21B can be an edge emitting laser diode (EDGE EMITTING LASER DIOD Diode (EELD) or a surface emitting laser diode (SELD). Furthermore, the present invention can also use a stacked laser diode (Stack Laser Diode) is used as the light-emitting element 21B, wherein the multilayer laser diode has the effect of increasing the intensity of a single multi-band or a single single-band. In addition, the light-emitting element 21B used in the present invention can also select a corresponding multi-band light source as the technology develops. Preferably, the light source assembly 20B is provided with three laser diodes spaced apart on the coupling portion 15B as shown in FIG. 5, and the light wavelengths of the three laser diodes are 405 nanometers (nanometer; nm), 455 nanometers and 488 nanometers, respectively. Preferably, the operating module 12B of the body 10B can control the three laser diodes through the control module 13B, so that the three laser diodes can emit light simultaneously or individually or two of the laser diodes can emit light. Preferably, the light source used in the present invention can also use lasers of corresponding wavelengths as the light source as the development of dental polymer materials; the light emitting elements 21B of the light source group 20B of the laser device described above are three laser diodes with three primary colors of light wavelengths, and the light source group 20B can generate three primary colors of light (red, green and blue; RGB) after being powered on, and after adding them together, the laser device can emit white light or mix laser light of other wavelengths.

As shown in FIG. 6 , the reflector 22B is disposed at the joint portion 15B of the housing 11B and covers the outside of the plurality of light emitting elements 21B. The reflector 22B has a reflective surface 221B which is tapered outward from the plurality of light emitting elements 21B. Preferably, the reflector 22B and the concave mirror 151B are a total reflection mirror, so that the light emitted by the plurality of light emitting elements 21B is reflected by the reflective surface 221B and the concave mirror 151B. 51B reflects and then emits the reflector 22B. The collimator 23B is disposed on a side of the reflector 22B away from the plurality of light-emitting elements 21B, and is used to form the light beam reflected by the reflector 22B into a parallel light beam or focus it at a specific focal point. The focusing lens 24B is disposed on a side of the collimator 23B away from the reflector 22B, and is used to focus the parallel light beam formed by the collimator 23 into a single light spot, as shown in FIG. 9 .

As shown in FIG. 7 , the light guide 30B is detachably connected to the connecting portion 15B of the body 10B and is located at the front side of the light source unit 20B, and is used to guide the light spot of the light source unit 20B out of the dental laser device. The light guide 30B is provided with a reflector 31B inside, and the reflector 31B is used to change the single light spot formed by the light source unit 20B so that it is emitted out of the dental laser device through the light guide 30B. Furthermore, the light guide 30B can also be an optical fiber tube without the reflector 31B.

Please refer to FIG. 4 and FIG. 8 . When the laser device for dentistry of the present invention is used, after the user presses the control button 121B of the operation module 12B, the control module 13B drives each of the light emitting elements 21B of the light source set 20B to emit light as shown in FIG. 9 . The corresponding pressing of the control button 121B can cause the plurality of light emitting elements 21B to emit light simultaneously or individually. After each of the light emitting elements 21B emits light, as shown in FIG. 6 , after being reflected by the reflector 22B and the concave mirror 151B, it is emitted toward the direction of the collimator 23B to form a parallel light beam. The parallel light beam is focused by the focusing lens 24B to form a single light spot, and is emitted toward the reflecting mirror 31B of the light guide 30B as shown in FIG. 7 . After being reflected by the reflective mirror 31B, the light is emitted out of the dental laser device. The concave mirror 151B can reflect part of the light reflected by the reflective member 22B back to the joint 15B to the reflective member 22B again and emit it in the direction of the collimating mirror 23B. As shown in FIG10, the single light spot irradiates the composite resin 8 filling the tooth 70. Since the light source emitted by the light source group 20B has high penetration, collimation and coherence, it can irradiate into the composite resin 80 filling the tooth 70, and the composite resin 80 as a whole undergoes a photopolymerization reaction, so that the composite resin 80 as a whole can be photocured. The operation is relatively convenient, time-saving and can improve the tightness of the tooth filling.

Furthermore, as shown in FIG. 5 , the second preferred embodiment of the laser device for dentistry of the present invention is provided with three light emitting elements 21B of different wavelengths at the joint 15B of the main body 10B. Therefore, when a composite resin 80 of different chemical materials is used, the light emitting elements 21B of different wavelengths can provide light sources of corresponding wavelengths. Not only can the composite resin 80 of different chemical materials be photocured by a single laser device for dentistry, but also the composite resin 80 of different chemical materials can be photocured by a single laser device for dentistry. The need to purchase additional dental laser devices can significantly reduce the expenses and costs required for use, and can increase the application range of dental laser devices. It can also accurately perform light curing on composite resins 80 of different chemical materials, effectively avoiding the phenomenon of failure to cure or incomplete curing, and relatively improve the treatment quality of tooth fillings, thereby providing a dental laser device that improves the curing effect, increases the application range, and is easy to use.

Please refer to FIG. 11 to FIG. 14, a second preferred embodiment of the laser device for dentistry of the present invention further comprises a clamping assembly 40B, which is disposed in the light guide tube 30B and is used to clamp the reflector 31B so that the reflector 31B can be fixed in the light guide tube 30B. The clamping assembly 40B comprises a fixing plate 41B, a supporting arm 42B and a supporting frame 43B. The fixing plate 41B is fixed to the joint 15B of the housing 11B, and the outer shape of the fixing plate 41B is round. The profile can be matched with the cross section of the coupling portion 15B to form a circular or square shape. The fixing plate 41B is penetrated by a plurality of through holes 411B corresponding to the light emitting elements 21B of the light source group 20B, so that the light source of each light emitting element 21B can be emitted toward the reflector 22B through the corresponding through holes 411B; one end of the support arm 42B is coupled to the fixing plate 41B and extends along the light guide 30B. Preferably, the support arm 42B is provided with a coupling section 421B at one end away from the fixing plate 41B.

The support frame 43B is combined with the joint section 421B of the support arm 42B and is located in the light pipe 30B, so that the support frame 43B and the fixing plate 41B are respectively located at two ends of the support arm 42B. The support frame 43B is provided with two supporting plates 431B and a connecting plate 432B, wherein the two supporting plates 431B are spaced apart from each other on the support frame 43 B, the connecting plate 432B is arranged at the middle section of the support frame 43B and is spaced apart from the two holding plates 431B, so that a clamping space is formed between the two holding plates 431B and the connecting plate 432B, the connecting section 421B of the support arm 42B is combined with the connecting plate 432B of the support frame 43B, and the reflector 31B is arranged on the support frame 43B. In the clamping space of the support frame 43B, further, the support assembly 40B is provided with a locking piece 44B, and the locking piece 44B is locked and combined with the connecting plate 432B of the support frame 43B and the connecting section 421B of the support arm 42B, so as to combine the support frame 43B with the support arm 42B. Preferably, the locking piece 44B can further be combined with The reflective mirror 31B abuts against each other, thereby firmly clamping the reflective mirror 31B on the support frame 43B; by setting the clamping group 40B in the light guide tube 30B, the reflective mirror 31B can be conveniently and quickly set in the light guide tube 30B, so as to reflect the light emitted by the light source group 20B and guide it out of the dental laser device.

Please refer to the third preferred embodiment of the laser device for dentistry of the present invention as shown in FIG. 15. The difference between the third preferred embodiment and the second preferred embodiment shown in FIGS. 4 to 7 is that the light source assembly 20C is provided with a plurality of light emitting elements 21C, a plurality of collimating lenses 23C, a plurality of focusing lenses 24C and a protective lens 25C, wherein each of the light emitting elements 21C is disposed in the housing 11C and each of the light emitting elements 21C is a laser diode, and the light wavelengths of each of the light emitting elements 21C may be the same or different, each of the collimating lenses 23C is disposed in the housing 11C and corresponds to one of the light emitting elements 21C, each of the focusing lenses 24C is disposed far away from one of the collimating lenses 23C, and each of the focusing lenses 24C is disposed far away from one of the collimating lenses 23C. The protective lens 25C is disposed on the outer shell 11C and is located on a side of each focusing lens 24C away from the light emitting elements 21C, and the dental laser device is provided with a plurality of light guide tubes 30C, each of which is disposed in the outer shell 11C and between one of the corresponding collimating lenses 23C and focusing lenses 24C of the light source set 20C, for guiding the light emitted by the light source set 20C out of the dental laser device, so that the light emitting element 21C, the collimating lens 23C and the focusing lens 24C of the light source set 20C and the light guide tubes 30C are in a one-to-one spatial and structural correspondence relationship.

Please refer to the fourth preferred embodiment of the laser device for dentistry of the present invention as shown in FIG. 16. The difference between the fourth preferred embodiment and the second preferred embodiment shown in FIGS. 4 to 7 is that the light source assembly 20D is provided with a plurality of light emitting elements 21D, a plurality of collimating lenses 23D, a focusing cup 26D, a focusing lens 24D and a reflecting element 22D, wherein each of the light emitting elements 21D is provided at the joint 15D of the housing 11D and each of the light emitting elements 21D is a laser diode, and the light wavelengths of each of the light emitting elements 21D can be the same or different, and each of the collimating lenses 23D is provided at the housing 11D. 1D and corresponding to one of the light emitting elements 21D, the focusing cup 26D is disposed at the joint portion 15D of the housing 11D to focus the light emitted by each of the light emitting elements 21D through the corresponding collimating lens 23D, the focusing lens 24D is disposed on a side of the focusing cup 26D away from the collimating lenses 23D, the reflecting element 22D is disposed between the focusing cup 26D and the focusing lens 24D, and the reflecting element 22D is provided with two media with different refractive indices, so that the light emitted through the focusing cup 26D is totally reflected between the two media (Total Reflection). Internal Reflection), and after total reflection, it is emitted through the focusing lens 24D. Preferably, the reflector 22D is provided with an internal light-dense medium 222D and an external light-sparse medium 223D. The light guide 30D is combined with the joint 15D of the housing 11D and is located outside the reflector 22D of the light source assembly 20D, so as to guide the light emitted by the light source assembly 20D out of the laser device for dentistry, so that the light-emitting element 21D and the collimator 23D of the light source assembly 20D and the light guide 30D are in a many-to-one spatial and structural correspondence relationship.

When the fourth preferred embodiment of the present invention is used for a dental laser device, the light of each light emitting element 21D of the light source set 20D is emitted to the focusing cup 26D through the corresponding collimator 23D as shown in FIG. 16, and is totally reflected between the two mediums 222D and 223D of the reflector 22D, and then is focused by the focusing lens 24D and emitted from the light guide 30D. When each light emitting element 21D is emitted through the reflector 22D and the focusing lens 24D, a light spot S (Light S) is formed as shown in FIG. 17. When the light spot is too small and cannot overlap, the light cannot be focused and is scattered. Therefore, the fourth preferred embodiment of the laser device for dentistry of the present invention is configured according to the relationship between the light wavelength of each light emitting element 21D and the light refractive index of the reflector 22D, so that the light spot S emitted through the focusing lens 24D can overlap and not be scattered as shown in Figure 18.

Please refer to the fifth preferred embodiment of the present invention for a dental laser device as shown in FIG. 19 and FIG. 20. The difference between the fifth preferred embodiment and the second preferred embodiment shown in FIG. 4 to FIG. 7 is that the dental laser device further includes a filter 50E, which is combined with the light guide 30E to filter the light emitted by the dental laser device to avoid affecting the user. The filter 50E can be combined with the light guide 30E by means of thread, sleeve or tight fit. The filter 50E includes an outer cover 51E and a cover 51E. An inner guide portion 52E, wherein the outer cover portion 51E is a cone-shaped body that gradually expands outward from the light guide tube 30E, and the inner guide portion 52E is integrally formed or detachably arranged in the outer cover portion 51E. Further, the inner guide portion 52E is a light guide channel arranged in the outer cover portion 51E, and the light guide channel gradually contracts outward from the light guide tube 30E, so that the light source emitted by the light source set 20E can be guided by the inner guide portion 52E to emit outside the dental laser device as shown in Figure 21, and the outer cover portion 51E provides a filtering light source and protects the user's eyes.

Please refer to the sixth preferred embodiment of the laser device for dentistry of the present invention as shown in FIG. 22. The difference between the sixth preferred embodiment and the second preferred embodiment shown in FIGS. 4 to 7 is that each light emitting element 21F of the light source group is an edge emitting laser diode (EELD) having multiple light sources, so that each light emitting element 21F can simultaneously emit multiple light sources of different or same wavelengths. As shown in FIG. 23, multiple resonant cavities C (resonant cavities C) are formed on a semiconductor substrate by a semiconductor process. cavity), these resonant cavities C can generate light sources of the same wavelength (synchronous) or different wavelengths (asynchronous) after being excited, so that these light sources can have the effect of increasing intensity or adding. For example, each light-emitting element 21F has three resonant cavities C, and the three resonant cavities C can generate three primary colors of light (red, green and blue; RGB) respectively after being powered on, and after adding, the light-emitting element 21F emits white light or laser light of other wavelengths.

Please refer to the seventh preferred embodiment of the present invention for a dental laser device as shown in FIG. 24. The difference between the seventh preferred embodiment and the second preferred embodiment shown in FIG. 6 and the third preferred embodiment shown in FIG. 15 is that the coupling portion 15G of the housing 11G has a threaded structure, and the body 10G is provided with a locking cover 16G coupled to the coupling portion 15G, the locking cover 16G is hollow and has an opening, the light guide 30G is provided with a locking ring 32G at one end facing the body 10G, and the light guide 30G After the end away from the locking ring 32G passes through the locking cover 16G, the locking ring 32G abuts against the inner edge of the locking cover 16G, thereby combining the light guide 30G with the body 10G. The locking cover 16G abuts against the locking ring 32G, so that the light guide 30G can rotate relative to the body 10G, and the end of the light guide 30F away from the locking ring 32G can rotate relative to the body 10G, and the angle of the light guide 30G can be adjusted according to the needs of the user.

Furthermore, the light source assembly 20G includes two light emitting elements 21G and a half mirror 27G. The two light emitting elements 21G are disposed in the housing 11G in an angled configuration. Preferably, the two light emitting elements 21G are disposed in the housing 11G at an angle of 90°. Each of the light emitting elements 21G is a laser diode, and the light wavelengths of the light emitting elements 21G may be the same or different. Preferably, the light wavelength of one of the laser diodes is 405 nanometers (nm), and the light wavelength of the other laser diode is 455 nanometers (nm). The half mirror 27G is disposed between the two light emitting elements 21G and includes a dielectric film reflective layer 271G. The dielectric film reflective layer 271G is made of titanium dioxide (TiO ₂ ) or silicon dioxide (SiO 2 ). ₂ ) The coating is repeatedly stacked on the semi-transparent mirror 27G. Different coating layers and thicknesses are designed according to the purpose of use (transmission, semi-reflection, semi-transmission or total reflection, etc.) to produce a specific reflection or transmission effect. The dielectric film reflection layer 271G is located on the side of the semi-transparent mirror 27G facing the light guide 30G, so that the light emitted by the two light-emitting elements 21G is as shown in FIG. 25. After refraction and transmission of the semi-transparent mirror 27G, the light of the two light-emitting elements 21G overlaps and forms a In a straight line, the laser beam is directed toward the light pipe 30G so that the light pipe 30G emits a single light beam. Preferably, the dielectric film reflective layer 271G may also be disposed on the reflective mirror 31G to provide a strong reflective effect, and a window 17G may be disposed on the outer shell 11G. By utilizing the above-mentioned dielectric film coating design, the laser light partially penetrates through the window 17G and can be dimmed by a dimmer lens, so that the user can observe through the window 17G whether the light source assembly 20G is operating.

Furthermore, in the seventh preferred embodiment of the present invention for the dental laser device, a focusing lens 24G can be arranged between each of the light emitting elements 21G and the semi-transparent mirror 27G, so that the light emitted by each of the light emitting elements 21G is first focused by the corresponding focusing lens 24G and then emitted to the semi-transparent mirror 27G, thereby improving the accuracy of the laser light; further, a collimator can be arranged between each of the light emitting elements 21G and the semi-transparent mirror 27G, and the focusing lens 24G can be arranged on the path of the light emitted by the semi-transparent mirror 27G, so that the laser light can be emitted to the dental laser device. The method of two collimating lenses and a focusing lens 24G can also improve the accuracy of laser light; further, another focusing lens 24G' can be optionally set near the reflector 31G of the light pipe 30G to focus the laser light emitted by the reflector 31G; in addition, a galvanometer module 29G can be set on the front side of the light pipe 30G to increase the scanning range of the laser light through the galvanometer module 29G, and the energy of the laser light can be evenly distributed, and it can be used in a wide range to reduce the operation time.

The seventh preferred embodiment of the laser device for dentistry of the present invention can be used with laser diodes of two different wavelengths (405nm and 450nm) and can be applied to photopolymerization or polymerization of dental polymer materials (photopolymerization machine).

Please refer to the eighth preferred embodiment of the present invention for a dental laser device as shown in FIG. 25. The difference between the eighth preferred embodiment and the seventh preferred embodiment shown in FIG. 24 is that the light guide tube 30G of the eighth preferred embodiment of the present invention for a dental laser device is provided with a fluid pipeline 33G at the bottom, which can be used to output liquid or gas to provide a cleaning and cooling effect. When in use, the laser diodes of the two light-emitting elements 21G are set to a high-energy therapeutic light (invisible light, light wavelength is 808 nanometers-Diode, 810~940 nanometers-AlGaAs, 1064 nanometers-InGaAsP, Nd-YAG, 1064 nanometers fiber laser (fiber The light source group 20G of 2780nm-Er:Cr:YsGG and 2940nm-Er:YGG) and a low-energy guiding light (visible light, such as red light, etc.) are provided on the housing 11G, and a window 17G is provided on the housing 11G. By using the above-mentioned dielectric film coating design, the laser light in the treatment light band strongly penetrates the semi-transparent mirror 27G and weakly reflects out of the window 17G, and the guiding light (visible light, red light, etc.) is half-transmitted through the semi-transparent mirror 27G and half-reflected out of the window 17G, so that the invisible treatment light passes through the semi-transparent mirror 27G and then is emitted to the light guide tube 30G, and the visible guiding light part passes through the semi-transparent mirror 27G. The semi-transparent mirror 27G refracts and overlaps with the invisible treatment light, while another part of the visible guide light is transmitted through the semi-transparent mirror 27G and emitted toward the window 17G as shown in FIG. 25, so that the user can observe whether the light source set 20G is actuated through the window 17G, and can be applied to the cleaning and surface treatment of gums or artificial tooth roots (laser cleaner), so as to provide laser surface treatment for artificial tooth roots, and non-contact cutting and burning applications for soft and hard tissues, and can transport liquid or gas for cleaning and cooling operations through the fluid pipeline 33G under the light guide tube 30G.

Preferably, as shown in FIG. 26, the seventh and eighth preferred embodiments of the laser device for dentistry of the present invention are provided with a holder 28G for positioning the semi-transparent mirror 27G in the housing 11G. The holder 28G is fixed in the housing 11G and is provided with a positioning groove 281G and two light guide channels 282G. The positioning groove 281G is recessed in the middle of the holder 28G to clamp and fix the semi-transparent mirror 27G to the holder 28G. The clamp 28G can be a rectangular block, and the positioning groove 281G is formed on one of the diagonals of the clamp 28G. Each of the light guide channels 282G passes through two opposite sides of the clamp 28G and communicates with the positioning groove 281G. The two light guide channels 282G are arranged on the clamp 28G at an angle, and the light sources of the two light emitting elements 21G are respectively emitted to the semi-transparent mirror 27G for refraction and transmission.

Please refer to FIG. 27 , when the eighth preferred embodiment of the laser device for dentistry of the present invention is used, the light guide 30G is moved to the artificial tooth root 90 that the patient wants to clean and the light source assembly 20G of the 1064 nanometer fiber laser is activated, wherein the 1064 nanometer fiber laser (fiber laser) The light source group 20G of the laser uses optical fiber as the gain medium of the laser diode and the light transmission medium to increase the light intensity and generate 1064 nanometer laser light. The 1064 nanometer laser light band is suitable for surface processing of metals, and water vapor, hemoglobin and hydroxyapatite (one of the main components of bone composition) have low absorption rates for the 1064 nanometer laser light band. When cleaning and surface processing the artificial tooth root 90, it will not cause damage to the alveolar bone around the artificial tooth root 90. Since water vapor has a low absorption rate for 1064 nanometer light, the water vapor flushing and cooling method will not affect the effectiveness of the laser light, and can effectively provide cleaning of the artificial tooth root 90. The laser surface treatment layer on the surface of the artificial tooth root 90 can be reconstructed, and when used in a non-contact manner on the treatment site (such as the gums or artificial tooth roots), not only can the material (optical fiber) loss and cost be reduced due to the use of a non-contact irradiation method, but also the artificial tooth root 90 can be cleaned and laser surface treated by irradiation with a light source without scratching the surface of the artificial tooth root 90, so that the artificial tooth root 90 after cleaning can be restored to the initial metal surface state, which is conducive to the attachment of new bone, thereby improving the stability of the artificial tooth root 90 set on the gums; and in the process of cleaning the artificial tooth root 90, water, water vapor or gas can be transported through the fluid pipeline 33G to remove impurities or provide cooling effects.

With the above technical features, the light source set 20A, 20B, 20C, 20D, 20E, 20G of the laser device for dentistry of the present invention uses a laser diode (LD) as the light emitting element 21A, 21B, 21C, 21D, 21F, 21G, and is used in conjunction with a reflector 22B, 22D, a collimator 23A, 23B, 23C, 23D, and a focusing lens 24B, 24C, 24D, 24G, 24G', so that the light emitted by the light source set 20A, 20B, 20C, 20D, 20E, 20G is The light source has high penetration, collimation and coherence, and can be applied not only to jewelry appraisal (whether there are cracks or other fillings), medical equipment disinfection and nail painting (curing pigments), but also can be used in the field of multiple sets of dental laser devices with a box to form a disinfection space in the box, and then can be applied to the disinfection and sterilization of kitchen tableware or surgical equipment; in addition, because the body 10A is small in size, it is easy to carry around and can be used by users for hand disinfection, so that the dental laser device of the present invention has a wide range of applications.

In dental use, the composite resin 80 can be irradiated into the interior of the composite resin 80 filling the tooth 70, and the composite resin 80 can be photopolymerized as a whole, so that the composite resin 80 can be photocured as a whole, which is relatively convenient to operate, saves time, and can improve the tightness of the filling of the tooth 70. Further, the laser device for dental use of the present invention is provided with three light-emitting elements 21B with different wavelengths at the joint 15B of the main body 10B, or two light-emitting elements 21G arranged at an angle are used with the semi-transparent lens 27G, and two single light sources with different wavelengths and overlapped and arranged in a straight line are used. Therefore, when using composite materials of different chemical materials, When compounding resin, the light sources of corresponding wavelengths can be provided through the light emitting elements 21B and 21G of different wavelengths. Not only can the composite resin 80 of different chemical materials be photocured through a single dental laser device, but there is no need to purchase multiple dental laser devices. In addition, a light focusing effect can be provided, which can greatly reduce the expenses and costs required for use, and increase the application range of dental laser devices. In addition, the composite resin 80 of different chemical materials can be photocured accurately, effectively avoiding the phenomenon of failure to cure or incomplete curing, and relatively improving the treatment quality of tooth 70 filling.

Furthermore, the light source set 20A, 20B, 20C, 20D, 20E, 20G of the dental laser device of the present invention can generate at least one or more light sources of the same (synchronous) or different wavelengths (asynchronous), so that the user can use them according to the needs, and can increase the light intensity or increase the use range of the light source by adding the light sources, and when used in a non-contact manner on the treatment site (such as the gums or artificial tooth roots), not only can the non-contact The artificial tooth root 90 is cleaned by a light source and laser surface treatment is performed, so that the surface of the artificial tooth root 90 will not be scratched, so that the artificial tooth root 90 after cleaning can be restored to the original metal surface state, which is conducive to the attachment of new bone, thereby improving the stability of the artificial tooth root 90 on the gums, thereby providing a laser device for dentistry that improves the curing effect, expands the application range, and is easy to use.

The above is only the preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any person with ordinary knowledge in the relevant technical field, within the scope of the technical solution proposed by the present invention, can make partial changes or modifications to the technical content disclosed by the present invention, and within the scope of the technical solution of the present invention, and all equivalent embodiments that do not deviate from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

15B: junction

151B: Concave mirror

20B: Light source set

21B: Luminous parts

22B: Reflective parts

221B: Reflective surface

23B: Collimator

24B: Focusing lens

Claims (36)

A laser device for dentistry comprises: a body, the body having an outer shell, an operating module and a control module, the outer shell having a joint at a free end, the operating module being arranged on the outer shell, the control module being arranged in the outer shell and electrically connected to the operating module; and a light source assembly, the light source assembly being arranged in the body and having at least one light-emitting element and a collimator, wherein the at least one light-emitting element is arranged in the outer shell and electrically connected to the control module, the at least one light-emitting element is a laser diode, the collimator is arranged at the joint of the outer shell, and is used to form a parallel light beam emitted by the at least one light-emitting element, wherein the at least one light-emitting element has multiple light sources and can emit multiple light sources of different or same wavelengths, and has a single multi-band effect or a single single-band intensity increase effect. A laser device for dentistry as described in claim 1, wherein the light source of at least one light-emitting element can be used to detect whether an object has cracks. A laser device for dentistry as described in claim 1, wherein the light source of at least one light-emitting element can be used for disinfection and sterilization of instruments. A laser device for dentistry comprises: a body, the body having an outer shell, an operating module and a control module, the outer shell having a joint at a free end, the operating module being arranged on the outer shell, the control module being arranged in the outer shell and being electrically connected to the operating module; a light source group being arranged in the body and having a plurality of light-emitting elements, a reflector, a collimator and a focusing lens, wherein each of the light-emitting elements is arranged at the joint of the outer shell and is electrically connected to the control module, each of the light-emitting elements is a laser diode, the reflector is arranged in the outer shell, and the control module is arranged in the outer shell and is electrically connected to the operating module; The outer shell is at the joint part and covers the outside of the plurality of light-emitting elements. The collimator is arranged on the side of the reflector away from the plurality of light-emitting elements. The focusing lens is arranged on the side of the collimator away from the reflector. Each of the light-emitting elements has a plurality of light sources and can emit a plurality of light sources of different or same wavelengths, having a single multi-band effect or a single single-band intensity increase effect. A light guide is also provided. The light guide is detachably combined with the joint part of the body and is located at the front side of the light source group to guide the light emitted by the light source group out of the laser device for dentistry. As described in claim 4, the laser device for dentistry, wherein the reflector is provided with a reflective surface which is tapered outward from the plurality of light-emitting elements, and the joint is provided with a concave mirror, which is arranged behind the plurality of light-emitting elements, so that the light emitted by the plurality of light-emitting elements is reflected by the reflective surface and the concave mirror and then emitted from the reflector. A laser device for dentistry as described in claim 5, wherein the reflector is a total reflection mirror. A laser device for dentistry as described in any one of claims 4 to 6, wherein the light source assembly is provided with three laser diodes spaced apart on the joint, and the light wavelengths of the three laser diodes are 405 nanometers, 455 nanometers and 488 nanometers respectively. As described in claim 7, the laser device for dentistry, wherein the operating module of the main body can control the three laser diodes through the control module, so that the three laser diodes can emit light at the same time or individually or two of them can emit light. A laser device for dentistry as described in claim 8, wherein each of the light-emitting elements is an edge-emitting laser diode, a single-faceted laser diode or a multilayer laser diode. A laser device for dentistry as described in any one of claims 4 to 6, wherein the light source assembly is provided with three laser diodes arranged at intervals on the joint, and the wavelengths of the light of the three laser diodes are three primary colors. The light source assembly can generate three primary colors of light respectively after being powered on, and after adding them together, the laser device emits white light or mixes laser light of other wavelengths. A laser device for dentistry as described in any one of claims 4 to 6, wherein the main body is provided with a light shielding plate, and the light shielding plate is provided at the joint of the outer shell. A laser device for dentistry as described in claim 11, wherein the outer shell can be composed of two shell halves that are relatively joined together. A laser device for dentistry as described in claim 12, wherein the operating module is disposed on the housing and is provided with a plurality of control buttons and a display screen. A laser device for dentistry as described in any one of claims 4 to 6, wherein the outer shell can be composed of two half shells that are relatively combined, and the operating module is arranged on the outer shell and has a plurality of control buttons and a display screen. A laser device for dentistry as described in any one of claims 4 to 6, wherein the light pipe is provided with a reflective mirror inside, and the laser device for dentistry is provided with a support assembly inside the light pipe and combined with the reflective mirror, the support assembly is provided with a fixing plate combined with the joint portion of the outer shell, a supporting arm connected to the fixing plate, and a supporting frame combined with the supporting arm and the reflective mirror. As described in claim 15, the support frame is provided with two supporting plates and a connecting plate, wherein the two supporting plates are spaced apart on both sides of the support frame, the connecting plate is provided at the middle section of the support frame and is spaced apart from the two supporting plates, a clamping space is formed between the two supporting plates and the connecting plate, the support arm is provided with a coupling section coupled with the connecting plate of the support frame at one end away from the fixing plate, and the reflector is provided in the clamping space of the support frame. As described in claim 16, the laser device for dentistry, wherein the support assembly is provided with a locking member, and the locking member is locked and combined with the connecting plate of the support frame and the connecting section of the support arm. A laser device for dentistry, comprising: a body, the body having an outer shell, an operating module and a control module, the outer shell having a joint at a free end, the operating module being arranged on the outer shell, the control module being arranged in the outer shell and being electrically connected to the operating module; a light source group, the light source group being arranged in the body and having a plurality of light-emitting elements, a plurality of collimating lenses, a plurality of focusing lenses and a protective lens, wherein each of the light-emitting elements is arranged in the outer shell and is electrically connected to the control module, each of the light-emitting elements is a laser diode, each of the collimating lenses is arranged in the outer shell and is electrically connected to the control module, The laser device comprises a plurality of light guide tubes, each of which is disposed in the outer shell of the main body and between one of the collimating lenses and the focusing lens corresponding to the light source set, and the protective lens is disposed on the outer shell and is located on the side of each focusing lens away from the light source sets, wherein each light source has multiple light sources and can emit multiple light sources of different or same wavelengths, having a single multi-band effect or a single single-band intensity increase effect; and a plurality of light guide tubes, each of which is disposed in the outer shell of the main body and between one of the collimating lenses and the focusing lens corresponding to the light source set, and is used to guide the light emitted by the light source set out of the laser device for dentistry. A laser device for dentistry comprises: a body, the body having an outer shell, an operating module and a control module, the outer shell having a joint at a free end, the operating module being arranged on the outer shell, the control module being arranged in the outer shell and being electrically connected to the operating module; a light source group being arranged in the body and having a plurality of light-emitting elements, a plurality of collimating lenses, a focusing cup, a focusing lens and a reflecting element, wherein each of the light-emitting elements is arranged at the joint of the outer shell and is electrically connected to the control module, each of the light-emitting elements is a laser diode, each of the collimating lenses is arranged in the outer shell and corresponds to one of the light-emitting elements, the focusing cup is arranged at At the joint of the outer shell, the focusing lens is arranged on a side of the focusing cup away from the collimating lenses, the reflecting member is arranged between the focusing cup and the focusing lens, the reflecting member is provided with two media with different refractive indices, so that the light emitted through the focusing cup is totally reflected between the two media, wherein each of the light emitting members has multiple light sources and can emit multiple light sources with different or same wavelengths, having a single multi-band effect or a single single-band intensity increase effect; and a light guide, which is detachably combined with the joint of the body and is located outside the reflecting member of the light source group, and is used to guide the light emitted by the light source group out of the laser device for dentistry. A laser device for dentistry as described in claim 19, wherein the reflector has an inner light-dense medium and an outer light-sparse medium. A laser device for dentistry as described in claim 4 or 20, wherein the laser device for dentistry is provided with a filter mask combined with the light guide tube, the filter mask is provided with an outer cover portion and an inner guide portion, the outer cover portion is a cone-shaped body that gradually expands outward from the light guide tube, and the inner guide portion is provided in the outer cover portion and gradually contracts outward from the light guide tube. A laser device for dentistry as described in claim 1, 4, 18 or 19, wherein each light-emitting element of the light source assembly is a side-emitting laser diode. As described in claim 22, the laser device for dentistry, wherein each light-emitting element of the light source group forms multiple resonant cavities on a semiconductor substrate through a semiconductor process, and these resonant cavities can generate light sources of the same wavelength or different wavelengths after being excited, so that these light sources can have an effect of increasing intensity or adding. As described in claim 23, the laser device for dentistry, wherein the resonant cavities can generate three primary colors of light respectively after being energized, and after adding them together, the light-emitting element can emit white light or laser light of other wavelengths. A laser device for dentistry as described in claim 1, 4, 18 or 19, wherein each light-emitting element of the light source assembly is a multilayer laser diode. A laser device for dentistry as described in claim 1, 4, 18 or 19, wherein the laser light sources of each light-emitting element of the light source assembly can be selected and configured according to the characteristics of the dental polymer resin, thereby causing the dental polymer resin to undergo a polymerization reaction. A laser device for dentistry as described in claim 4, wherein the body is provided with a coupling portion having a threaded structure, and the body is provided with a locking cover coupled to the coupling portion, the light guide is provided with a locking ring at one end facing the body that can abut against the locking cover so that the light guide can be rotatably coupled to the body, and the light source assembly is provided with two light-emitting components and a half lens. The two light elements are arranged in the housing in an angled configuration. The semi-transparent mirror is arranged between the two light-emitting elements and is provided with a dielectric film reflective layer. The dielectric film reflective layer is located on a side of the semi-transparent mirror facing the light guide tube, so that the light emitted by the two light-emitting elements overlaps and is emitted toward the light guide tube in a straight line after being refracted and transmitted by the semi-transparent mirror. A laser device for dentistry as described in claim 27, wherein the two light-emitting elements are disposed in the housing at an angle of 90°. As described in claim 28, a laser device for dentistry is provided between each light-emitting element and the semi-transparent mirror, so that the light emitted by each light-emitting element is first focused by the corresponding focusing lens and then emitted to the semi-transparent mirror. A laser device for dentistry as described in claim 28, wherein a collimator is provided between each light-emitting element and the semi-transparent mirror, and a focusing lens is provided on the path of the light emitted by the semi-transparent mirror. A laser device for dentistry as described in any one of claims 27 to 30, wherein a holder for positioning the semi-transparent mirror is provided in the housing, the holder is fixed in the housing and is provided with a positioning groove and two light guide channels, the positioning groove is recessed in the middle of the holder and is used to clamp and fix the semi-transparent mirror on the holder, each of the light guide channels passes through two opposite side surfaces of the holder and communicates with the positioning groove, and the two light guide channels are used for the light sources of the two light-emitting components to refract and transmit to the semi-transparent mirror respectively. A laser device for dentistry as described in any one of claims 27 to 30, wherein one of the light emitting elements of the light source assembly emits a laser beam in the visible light band, and the other light emitting element emits a laser beam in the invisible light band, and the laser beam in the visible light band can be used as a guide beam, and the laser beam in the invisible light band can be used as a treatment beam. A laser device for dentistry as described in any one of claims 27 to 30, wherein the light guide tube is provided with a fluid pipeline for conveying fluid on the outside. A laser device for dentistry as described in any one of claims 27 to 30, wherein the laser device for dentistry can be used for laser surface treatment of artificial tooth roots, and can be used for non-contact cutting and burning of soft and hard tissues. A laser device for dentistry as described in any one of claims 27 to 30, wherein the housing is provided with a window for observation. A laser device for dentistry as described in any one of claims 27 to 30, wherein the laser light sources of each light-emitting element of the light source group can be selected and configured according to the characteristics of the dental polymer resin, thereby causing the dental polymer resin to undergo a polymerization reaction.

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