CN110638549A - Method and device for bleaching teeth - Google Patents
Method and device for bleaching teeth Download PDFInfo
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- CN110638549A CN110638549A CN201810679112.2A CN201810679112A CN110638549A CN 110638549 A CN110638549 A CN 110638549A CN 201810679112 A CN201810679112 A CN 201810679112A CN 110638549 A CN110638549 A CN 110638549A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000002087 whitening effect Effects 0.000 claims abstract description 96
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- 150000002367 halogens Chemical class 0.000 claims abstract description 75
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- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 64
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/06—Implements for therapeutic treatment
- A61C19/063—Medicament applicators for teeth or gums, e.g. treatment with fluorides
- A61C19/066—Bleaching devices; Whitening agent applicators for teeth, e.g. trays or strips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0635—Radiation therapy using light characterised by the body area to be irradiated
- A61N2005/0643—Applicators, probes irradiating specific body areas in close proximity
- A61N2005/0644—Handheld applicators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/065—Light sources therefor
- A61N2005/0651—Diodes
Abstract
The invention discloses a method and a device for bleaching teeth, wherein the method comprises the following steps: (1) applying a whitening agent containing hydrogen peroxide to the surface of the teeth; (2) activating the whitening agent by adopting a compound activation source; wherein the compound activation source comprises halogen light and ultrasonic wave which are applied in a superposition way, the illuminance of the halogen light is 170000lux-290000lux, and the wavelength is 400-650 nm; the center frequency of the ultrasonic wave is 40 +/-1 KHZ. The device is provided with a composite activation source emitting part, and the composite activation source emitting part mainly comprises an LED lamp, a halogen lamp and an ultrasonic generator. The invention can accelerate the in vitro diffusion rate of the hydrogen peroxide through the enamel, effectively shorten the bleaching time, improve the comfort of a patient in the treatment of whitening teeth and have good whitening effect.
Description
Technical Field
The invention relates to the technical field of tooth whitening, in particular to a method and a device for bleaching teeth.
Background
Tooth bleaching refers to the chemical reaction of chemical oxidative bleaching drugs on the surface or inside of teeth to whiten the teeth. The bleaching drugs commonly used in the market at present are mainly mixtures containing hydrogen peroxide, and when whitening is performed, the hydrogen peroxide releases active oxygen or hydroxyl free radicals to crack coloring molecules containing unsaturated double bonds on teeth so as to realize the bleaching effect. However, since deep pigments of teeth are very persistent and difficult to remove, effective peroxides containAmount (in H)2O2Calculation) it is difficult to achieve a significant bleaching or bleaching effect in a short time if a certain solubility is not achieved; moreover, many documents indicate that too high a concentration of peroxide may cause side effects such as stimulation of gingival tissue or tooth sensitivity; in addition, it was confirmed that the bleaching effect was not very significant even by bleaching with hydrogen peroxide of a lower concentration repeatedly for a long time. Therefore, in clinical practice, in order to save medical resources and reduce discomfort of patients, the tooth whitening treatment time should be controlled within a suitable range.
Currently, commercially available tooth whitening techniques mainly use illumination or heating methods such as laser, Light Emitting Diode (LED), plasma arc, etc. as external energy to accelerate the decomposition of hydrogen peroxide, however, ultraviolet light, infrared light, etc. can promote tooth whitening effect and at the same time, cause excessive temperature increase in dental pulp tissue to damage teeth and cause allergy and discomfort. In addition, it is well known that ultraviolet light poses certain health risks to humans. The research shows that visible light (400nm-700nm) is a relatively good and safe activation light source at present, but the visible light illumination is only used as the activation light source and has no good whitening effect.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a method and a device for bleaching teeth.
In order to achieve the above object, the present invention provides the following technical solutions:
a method of bleaching teeth comprising the steps of:
(1) applying a whitening agent containing hydrogen peroxide to the surface of the teeth;
(2) activating the whitening agent on the tooth surface by using a composite activation source to bleach the teeth;
wherein the composite activation source comprises halogen light and ultrasonic waves which are applied in a superposition manner, the illuminance of the halogen light is 170000lux-290000lux, and the wavelength is 400-650 nm; the center frequency of the ultrasonic wave is 40 +/-1 KHZ.
Preferably: LED light is further superposed between the halogen light and the ultrasonic wave, the illuminance of the LED light is 5000lux-9000lux, the wavelength is 460-465nm, and the color temperature is 3000K.
Further: the halogen light is irradiated to the whitening agent, ultraviolet rays and temperature are filtered through an optical lens to form a cold light source with the wavelength of 480nm-520nm, and the cold light source is conducted through a light guide fiber and is sequentially superposed with the LED light and the ultrasonic waves to form the composite activation source.
And further: the content of the hydrogen peroxide is 10-35 wt%, and the whitening agent also contains peroxidase for catalyzing the hydrogen peroxide.
Further: the surface temperature of the composite activation source is increased to 9-15 ℃, and the activation time of the composite activation source is 20-35 min.
The utility model provides a device of bleaching tooth, has compound activation source transmitting part, compound activation source transmitting part includes that the surface inlays the shell that is equipped with the printing opacity piece, just in the shell to the position department of printing opacity piece is equipped with LED lamp and halogen lamp by near and far away in proper order, still be equipped with supersonic generator on the shell, supersonic generator is located one side of printing opacity piece, form compound activation source behind LED lamp, halogen lamp and the supersonic generator signal connection.
Preferably: the halogen lamp is in signal connection with the LED lamp through a light guide fiber, a heat insulation lens and a filter lens are further arranged between the halogen lamp and the LED lamp, the heat insulation lens is used for filtering the temperature emitted by the halogen lamp, and the filter lens is used for filtering ultraviolet rays and infrared rays emitted by the halogen lamp.
Preferably: the LED lamp is a blue light patch LED, the halogen lamp is a halogen reflection lamp cup, and the ultrasonic generator is an open type transmitting and receiving integrated ultrasonic sensor.
Further: the power of the blue light patch LED is 12w, and the voltage is 9-10V; the power of the halogen reflector lamp cup is 100W, the voltage is 12V, and the color temperature is 3000K; the center frequency of the open type transmitting and receiving integrated ultrasonic sensor is 40 +/-1 KHZ.
And further: the wavelength emitted by the LED lamp is 460-465 nm; the wavelength emitted by the halogen lamp is 480-520 nm.
Preferably: the diameter of the ultrasonic generator is 9.5-10.5mm, and the thickness of the ultrasonic generator is 6.5-7.5 mm.
Preferably: the shell is further provided with a heat radiation fan, and the heat radiation fan is arranged relative to the light transmitting sheet and used for adjusting the temperature of the composite activation source.
Preferably: the device of bleaching tooth still includes arm pole portion and fuselage, the end of arm pole portion with fuselage fixed connection, arm pole portion top with compound activation source transmission portion swing joint, be equipped with the control panel in the fuselage, the control panel respectively with arm pole portion with compound activation source transmission portion signal connection.
Further: a gear adjusting piece in signal connection with the controller is arranged on the surface of the machine body and comprises an H gear, an M gear and an L gear; the illuminance of the LED in the H gear is 9000lux, the illuminance of the halogen is 290000lux, and the surface temperature rise is 13-15 ℃; the illuminance of the LED of the M gear is 7000lux, the illuminance of the halogen is 220000lux, and the surface temperature rise is 12-13 ℃; the illuminance of the L-grade LED is 5000lux, the illuminance of the halogen is 170000lux, and the surface temperature rise is 9-10 ℃.
Preferably: the device for bleaching teeth further comprises a single whitening component, and the single whitening component is detachably connected with the machine body and used for bleaching single teeth.
Compared with the prior art, the invention has the following beneficial effects:
(1) the whitening agent is activated by adopting a compound activation source to bleach teeth, wherein the compound activation source consists of halogen light and ultrasonic waves, firstly, the halogen light with the illuminance of 170000lux-290000lux and the wave band of 400-650nm has high-intensity cold light, and compared with the activation sources of infrared rays and ultraviolet rays, the whitening agent has little damage to human bodies and teeth; secondly, the inventor discovers in research that the ultrasonic wave is used as one of the activation sources of the whitening agent, the whitening agent can be quickly activated by utilizing the cavitation of the ultrasonic wave and the microjet formed during cavitation collapse, the phenomenon is particularly obvious for the activation effect of hydrogen peroxide in the whitening agent, and the whitening agent after being activated by the ultrasonic wave can quickly release free active oxygen (hydroxyl free radical OH and superoxide free radical HOO & lt- & gt), so that the activation reactivity of the whitening agent is greatly improved, and compared with a tooth whitening technology which only adopts illumination, the invention can more effectively promote the diffusion of the whitening agent and the active ingredients thereof in teeth, thereby accelerating the whitening process and shortening the treatment time;
moreover, the ultrasonic wave with the central frequency of 40 +/-1 KHZ is selected in a targeted manner, and the halogen light with the wavelength and the illuminance is combined, so that the optimal whitening effect can be realized, and the phenomenon that the tooth arch form and the tooth hard tissue structure are damaged due to the fact that the ultrasonic wave is emitted to whitening agent colloid or the temperature rise is generated on the surface of a tooth body can be avoided, therefore, compared with the prior art, the composite activation source can effectively improve the whitening activity of the whitening agent, promote the release of active ingredients of the whitening agent, and simultaneously improve the osmosis of the active ingredients in the tooth, so that the treatment time is shortened, and the excellent whitening effect is obtained;
(2) the LED light with the parameters is also superposed between the halogen light and the ultrasonic wave, wherein the halogen light is the strongest luminous source and has higher penetrating power, so that the whitening gel can permeate conveniently;
(3) because the halogen light has the characteristic of strong penetrating power, in order to further improve the safety of the invention, the ultraviolet ray and the temperature are filtered by the optical lens before the halogen light irradiates to the whitening agent, and a cold light source with the wavelength of 480nm-520nm is formed, thereby avoiding the harm of the ultraviolet ray, the infrared ray and the like to teeth and human bodies, and ensuring the effectiveness of the light activation source in combination with the LED light;
(4) in order to further ensure the whitening effect of the invention, the whitening agent with the hydrogen peroxide content of 10-35 wt% can be selected, and the whitening agent contains peroxidase for catalyzing the hydrogen peroxide, because the hydrogen peroxide under the hydrogen peroxide content can achieve obvious decoloration or bleaching effect, and if the whitening agent contains the peroxidase, the whitening effect of the invention can be greatly improved, because the ultrasonic wave in the composite activation source can be used as an elastic mechanical wave to influence the catalytic activity of the enzyme to a certain extent, the influence difference of the ultrasonic waves with different frequencies on the activity of different enzymes is obvious, however, the change of the ultrasonic wave parameters can not only improve the catalytic activity of the enzyme, but also can possibly cause partial enzyme inactivation, in the invention, the inventor finds out through multiple experiments that the ultrasonic wave with the central frequency of 40 +/-1 KHZ can promote the hydrogen peroxide substrate to rapidly enter the catalytic part of the peroxidase and the product to enter a medium, thereby improving the catalytic efficiency of the enzyme, and the shock wave generated by the cavitation of the ultrasonic wave can change the conformation of enzyme molecules, thereby improving the process of enzymatic reaction and greatly improving the catalytic activity of peroxidase; in addition, the research of the inventor shows that the whitening technology can control the surface temperature to be 9-15 ℃, and the optimal whitening effect can be obtained within a safe range by whitening for 20-35min under the condition.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an emission portion of a composite activation source according to the present invention;
fig. 2 is a schematic view showing the structure of the device for bleaching teeth according to the present invention.
Description of reference numerals:
1. a composite activation source emitting portion; 11. a housing; 111. a light transmitting sheet; 12. an LED lamp; 13. a halogen lamp; 14. an ultrasonic generator; 15. a light guide fiber; 16. a filter lens; 17. a thermally insulating lens; 18. a heat radiation fan; 19. a heat shield; 2. an arm lever portion; 3. a body; 31. a gear adjustment member; 4. a single whitening component; 41. and (4) a bracket.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that the whitening agent used in the following examples is a whitening agent of type Max 5 provided by Beyond technology limited.
Example 1
The invention provides a method for bleaching teeth, which comprises the following steps:
(1) applying a whitening agent comprising hydrogen peroxide and peroxidase to the surface of teeth, wherein the content of hydrogen peroxide is 10 wt%;
(2) activating the whitening agent on the tooth surface for 20min by adopting a composite activation source when the surface temperature is raised to 9 ℃ so as to bleach the teeth;
wherein the composite activation source comprises halogen light and ultrasonic wave which are applied in a superposition manner, the illuminance of the halogen light is 170000lux, and the wavelength is 400 nm; the center frequency of the ultrasonic wave is 39 KHZ.
Example 2
A method of bleaching teeth comprising the steps of:
(1) applying a whitening agent comprising hydrogen peroxide and peroxidase to the surface of the teeth, wherein the hydrogen peroxide is present in an amount of 35 wt%;
(2) activating the whitening agent on the tooth surface for 30min by adopting a composite activation source when the surface temperature is raised to 9 ℃ so as to bleach the teeth;
wherein the compound activation source comprises halogen light, LED light and ultrasonic wave which are applied from far to near in a superposition manner relative to the whitening agent, the illuminance of the halogen light is 200000lux, and the wavelength is 650 nm; the illuminance of LED light is 6000lux, the wavelength is 463nm, and the color temperature is 3000K; the center frequency of the ultrasonic wave is 40KHZ
Example 3
A method of bleaching teeth comprising the steps of:
(1) applying a whitening agent comprising hydrogen peroxide and peroxidase to the surface of teeth, wherein the content of hydrogen peroxide is 10 wt%;
(2) activating the whitening agent on the tooth surface for 20min by adopting a composite activation source when the surface temperature is raised to 9 ℃ so as to bleach the teeth;
the composite activation source comprises halogen light, LED light and ultrasonic waves which are applied from far to near relative to the whitening agent in an overlapping mode, ultraviolet rays and temperature in the halogen light are filtered through an optical lens before the halogen light irradiates the whitening agent to form a cold light source, and the cold light source is conducted through a light guide fiber and is sequentially overlapped with the LED light and the ultrasonic waves to form the composite activation source;
the illuminance of the halogen light is 170000lux, and the wavelength is 480 nm; the illuminance of LED light is 5000lux, the wavelength is 460nm, and the color temperature is 3000K; the center frequency of the ultrasonic wave is 39 KHZ.
Example 4
A method of bleaching teeth comprising the steps of:
(1) applying a whitening agent comprising hydrogen peroxide and peroxidase to the surface of the teeth, wherein the content of hydrogen peroxide is 20 wt%;
(2) activating the whitening agent on the tooth surface for 30min by adopting a composite activation source at the surface temperature of 12 ℃ so as to bleach the teeth;
the composite activation source comprises halogen light, LED light and ultrasonic waves which are applied from far to near relative to the whitening agent in an overlapping mode, ultraviolet rays and temperature in the halogen light are filtered through an optical lens before the halogen light irradiates the whitening agent to form a cold light source, and the cold light source is conducted through a light guide fiber and is sequentially overlapped with the LED light and the ultrasonic waves to form the composite activation source;
the illuminance of the halogen light is 220000lux, and the wavelength is 500 nm; the illuminance of LED light is 7000lux, the wavelength is 463nm, and the color temperature is 3000K; the center frequency of the ultrasonic wave is 40 KHZ.
Example 5
A method of bleaching teeth comprising the steps of:
(1) applying a whitening agent comprising hydrogen peroxide and peroxidase to the surface of the teeth, wherein the hydrogen peroxide is present in an amount of 35 wt%;
(2) activating the whitening agent on the tooth surface for 35min by adopting a composite activation source when the surface temperature is raised to 15 ℃ so as to bleach the teeth;
the composite activation source comprises halogen light, LED light and ultrasonic waves which are applied from far to near relative to the whitening agent in an overlapping mode, ultraviolet rays and temperature in the halogen light are filtered through an optical lens before the halogen light irradiates the whitening agent to form a cold light source, and the cold light source is conducted through a light guide fiber and is sequentially overlapped with the LED light and the ultrasonic waves to form the composite activation source;
the illuminance of the halogen light is 290000lux, and the wavelength is 520 nm; the illuminance of LED light is 9000lux, the wavelength is 465nm, and the color temperature is 3000K; the center frequency of the ultrasonic wave is 41 KHZ.
Example 6
As shown in figure 1, the invention provides a device for bleaching teeth, which is provided with a composite activation source emitting part 1, wherein the composite activation source emitting part 1 comprises a shell 11, the surface of which is embedded with a light transmitting sheet 111, an LED lamp 12 and a halogen lamp 13 are sequentially arranged in the shell 11 from near to far in the position opposite to the light transmitting sheet 111, an ultrasonic generator 14 is also arranged on the shell 11, the ultrasonic generator 14 is positioned at one side of the light transmitting sheet 111, and the LED lamp 12, the halogen lamp 13 and the ultrasonic generator 14 are in signal connection to form a composite activation source.
Compared with the prior art, the whitening agent can effectively improve the whitening activity of the whitening agent, promote the release of active ingredients of the whitening agent and improve the penetration of the active ingredients in teeth, thereby shortening the treatment time and obtaining excellent whitening effect; the composite activation source emitting part 1 is formed by compounding a light activation source and ultrasonic waves relative to a traditional tooth whitening instrument, wherein the light activation source is composed of an LED lamp 12 and a halogen lamp 13, the halogen lamp 13 is the strongest light source and is arranged at the position farthest from a light-transmitting sheet 111, the light activation source has high penetrating power and is convenient for the penetration of whitening gel, the LED light 12 is arranged in front of the halogen lamp 13 and enters and exits in a superposed mode to meet the requirement of a mild light source for whitening the surface of tooth enamel, and the surface activity of a whitening agent is further accelerated by the arrangement of an ultrasonic generator 14, so that hydrogen peroxide in the whitening gel exerts the maximum activity, and the optimal whitening effect can be obtained.
When the device is used, the gum soft tissue is protected by the gum protective agent, then the whitening agent is coated on the surface of the teeth, and the device is started to align the teeth coated with the whitening agent for 25-35min, so that the whitening can be performed.
The halogen lamp 13 is in signal connection with the LED lamp 12 through the light guide fiber 15, and 200000 light guide fibers 15 are adopted, so that the energy consumption of the halogen lamp 13 can be reduced, high-fidelity transmission light can be realized, and the installation and the use are convenient; because the light emitted by the halogen lamp 13 has the characteristic of strong penetrating power, in order to further improve the safety of the invention, the ultraviolet rays, the infrared rays and the temperature are respectively filtered by the filter lens 16 and the heat insulation lens 17 before the halogen lamp 13 irradiates the whitening agent, so that a high-intensity cold light source is formed, compared with an infrared ray and ultraviolet ray activation source, the damage to a human body and teeth is small, and the effectiveness of the light activation source of the invention is also ensured by the cooperation of the LED light; in the embodiment, the LED lamp 12 is a blue-light patch LED, the halogen lamp 13 is a halogen reflector lamp cup, and the ultrasonic generator 14 is an open type transmitting and receiving integrated ultrasonic sensor; setting the power of the blue light patch LED to be 12w and setting the voltage to be 9-10V; the power of the halogen reflector lamp cup is set to be 100W, the voltage is set to be 12V, and the color temperature is set to be 3000K; the central frequency of the open type transmitting and receiving integrated ultrasonic sensor is set to be 40 +/-1 KHZ, so that the wave band with proper wavelength can be generated on each component, the ultrasonic wave with the central frequency of 40 +/-1 KHZ is selected, and the halogen light 13 with the wavelength and the illuminance and the LED lamp 12 are combined, so that the optimal whitening effect can be realized, and the phenomenon that the tooth arch form and the tooth hard tissue structure are damaged due to the fact that the ultrasonic wave is transmitted to whitening agent colloid or the tooth surface is heated can be avoided;
in addition, the diameter of the ultrasonic generator 14 is set to be 9.5-10.5mm, the thickness is set to be 6.5-7.5mm, so that the ultrasonic generator can be highly matched with the treatment range of 16-20 anterior teeth and premolars of the upper and lower jaws of a human body to achieve the optimal working range;
in order to further avoid that the surface temperature rise of the composite activation source is too high, so that the surface of the tooth is dehydrated and demineralized, and the tooth is sensitive to the stimulation of dental pulp to trigger the tooth, the shell 11 is also provided with a cooling fan 18 which is arranged relative to the light-transmitting sheet and is used for adjusting the temperature of the composite activation source, and further ensuring that the surface temperature rise of the emission part of the composite activation source is controlled at 9-15 ℃. In order to ensure the usability of the present invention and give the user the best tactile impression, a heat shield 19 is further provided on the inner wall of the housing 11, which heat shield may further enhance the safety of the present invention.
Of course, as shown in fig. 2, the tooth bleaching device further comprises an arm part 2 and a body 3, the end of the arm part 2 is fixedly connected with the body 3, the top end of the arm part 2 is movably connected with the composite activation source emitting part 1, a control panel (not shown in the figure) is arranged in the body 3, and the control panel is respectively in signal connection with the arm part 2 and the composite activation source emitting part 1. The surface of the machine body 3 is provided with a gear adjusting part 31 in signal connection with the controller, the gear adjusting part 31 can be a touch key of a liquid crystal display screen or a knob type adjusting part, and in the embodiment, a touch key is adopted and comprises an H gear key, an M gear key and an L gear key; the illuminance of the LED in the H gear is 9000lux, the illuminance of the halogen is 290000lux, and the surface temperature rise is 13-15 ℃; the illuminance of the LED of the M gear is 7000lux, the illuminance of the halogen is 220000lux, and the surface temperature rise is 12-13 ℃; the illuminance of the L-grade LED is 5000lux, the illuminance of the halogen is 170000lux, and the surface temperature rise is 9-10 ℃.
The gear adjusting member 31 controlled by the controller is provided with a plurality of gears because different gears are selected by the dental professionals according to the reason and degree of discoloration of the teeth of the person to be treated and the conditions of hard tissues of the teeth, thereby obtaining the best whitening effect and avoiding the occurrence of tooth sensitivity. The three-gear setting of the parameters of the blue light patch LED and the halogen lamp is used for defining the safety and effect range. Too high causes the temperature of the light source to rise, dehydration and demineralization on the surface of teeth, causes stimulation to the dental pulp to trigger tooth sensitivity, and has too small opposite parameters, insufficient illuminance and unobvious catalytic action on the whitening agent. Too high ultrasonic parameters can also cause the temperature of the colloid and the receiving surface to be increased, the activity of the whitening agent hydrogen peroxide and catalase is reduced, and the catalytic action is not obvious when the parameters are too small. In addition, the device for bleaching teeth can be provided with a single whitening component 4, and the single whitening component 4 is detachably connected with the machine body 1 through a bracket 41 and is used for bleaching single teeth.
To evaluate the efficacy of whitening according to the invention, and at the same time the effect of this technique on the diffusion of hydrogen peroxide into the enamel, experimental results of the invention are given below:
the experimental method comprises the following steps:
1. preparing 54 enamel plates with the diameter of 5 multiplied by 7mm and the thickness of 1.0mm by using cow incisors sterilized by ethylene oxide;
2. to evaluate the efficacy of whitening according to the present invention, half (i.e. 27) enamel plates were immersed in warm coffee solution (55 ℃) for 24 hours, washed for 30s and then stored in distilled water to obtain a stained enamel specimen; enamel samples were divided into 3 groups, the first group being given only H alone without an activation source2O2Whitening treatment (GEL) with whitening agent 35 wt%; the second group is subjected to whitening treatment (GEL/LT) by applying 480-520nm cold light (i.e. halogen light) on the basis of the first group; the third group superposes 40KHz ultrasonic wave on the first group to carry out whitening treatment (GEL/LT/US); the whitening efficacy of the three sets of experiments was measured with a spectrophotometer (Olympus CrystalEye) in CIE Lab color spaces of 5min, 15min, 30min, 45min and 60min, respectively, and the results are shown in table 1;
table 1: total color difference Δ E of three control groups at different duration of treatment
3. To evaluate H2O2The remaining 27 enamel plates were divided into 3 groups, placed in an artificial dental pulp chamber, wax-sealed around, placed in 12-well sterile cells containing 1.0ml of acetate buffer, and 3 groups of experiments were set up as described above, and for three groups of experiments, the exposed enamel surface was treated by the method of GEL, GEL/LT and GEL/LT/US, respectively, and then 50 μ l of acetate buffer was collected at 5min, 15min, 30min, 45min and 60min, respectively, white crystal violet was used as a substrate, horseradish catalase was used as a catalyst, and the hydrogen peroxide concentration (μ g/ml) in each treatment group was determined spectrophotometrically, using a square differenceAnalysis and post hoc PLSD detection color change (. DELTA.E) and H of CIE Lab in the 3 groups were compared2O2Diffusion of (2). The results are shown in Table 2.
Table 2: peroxide concentration (μ g/ml) diffused through enamel disc (1.0mm) for three control groups at different duration of treatment
As can be seen from tables 1 and 2, there was no significant difference in Δ E at 5 minutes for the three groups, but the Δ E for GEL/LT and GEL/LT/US was statistically significantly higher than GEL at 15 minutes, while GEL/LT/US was significantly higher than GEL and GEL/LT at 30, 45 and 60 minutes. In the group of GEL/LT/US 30 minutes were required for Δ E to reach 17.5, corresponding to 10 shade changes (from A4 to A2), while the group of GEL/LT took 60 minutes (Table 1). At 5 and 10 minutes, diffusion of peroxide through the enamel is significantly higher in GEL/LT/US than in GEL and GEL/LT. Peroxide diffusion was significantly higher for GEL/LT and GEL/LT/US over the entire experiment period than for GEL (Table 2).
Therefore, the ultrasonic-assisted enhanced light (namely, the composite activation source) provided by the invention is beneficial to enhancing the whitening effect of teeth and promoting the H of in-vitro enamel2O2Spreading, while reducing the duration of treatment for tooth whitening can potentially reduce adverse effects and improve patient comfort.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (11)
1. A method of bleaching teeth comprising the steps of:
(1) applying a whitening agent containing hydrogen peroxide to the surface of the teeth;
(2) activating the whitening agent on the tooth surface by using a composite activation source to bleach the teeth;
wherein the composite activation source comprises halogen light and ultrasonic waves which are applied in a superposition manner, the illuminance of the halogen light is 170000lux-290000lux, and the wavelength is 400-650 nm; the center frequency of the ultrasonic wave is 40 +/-1 KHZ.
2. The method as claimed in claim 1, wherein LED light is further superimposed between the halogen light and the ultrasonic wave, and the LED light has an illuminance of 5000lux-9000lux, a wavelength of 460-465nm, and a color temperature of 3000K.
3. The method of claim 2, wherein the halogen light is further filtered for ultraviolet and temperature by optical lenses before being irradiated to the whitening agent to form a luminescent light source with a wavelength of 480nm-520nm, which is conducted through a light guide fiber and is sequentially superimposed with the LED light and the ultrasonic wave to form the composite activation source.
4. The method of claim 3, wherein the hydrogen peroxide is contained in an amount of 10 to 35 wt%, and the whitening agent further comprises a peroxidase for catalyzing the hydrogen peroxide.
5. The method according to claim 3 or 4, wherein the surface temperature of the composite activation source is increased to 9-15 ℃, and the activation time of the composite activation source is 20-35 min.
6. The utility model provides a device of bleaching tooth, its characterized in that, the device has compound activation source transmission portion, compound activation source transmission portion inlays the shell that is equipped with the printing opacity piece including the surface, just in the shell to the position department of printing opacity piece is equipped with LED lamp and halogen lamp by near and far away in proper order, still be equipped with supersonic generator on the shell, supersonic generator is located one side of printing opacity piece, form compound activation source after LED lamp, halogen lamp and the supersonic generator signal connection.
7. The device of claim 6, wherein the halogen lamp is in signal connection with the LED lamp through an optical fiber, and a heat insulation lens and a filter lens are further disposed between the halogen lamp and the LED lamp, the heat insulation lens is used for filtering the temperature emitted by the halogen lamp, and the filter lens is used for filtering the ultraviolet rays and the infrared rays emitted by the halogen lamp.
8. The apparatus of claim 6, wherein the sonotrode has a diameter of 9.5-10.5mm and a thickness of 6.5-7.5 mm.
9. The apparatus of claim 6, wherein a heat sink fan is further disposed on the housing, the heat sink fan being disposed opposite the light transmissive sheet.
10. The device of claim 6, further comprising an arm portion and a body, wherein the end of the arm portion is fixedly connected to the body, the top end of the arm portion is movably connected to the composite activation source emitting portion, and a control board is disposed in the body and is in signal connection with the arm portion and the composite activation source emitting portion respectively.
11. The device of claim 10, wherein the surface of the body is provided with gear adjusting pieces in signal connection with the controller, and the gear adjusting pieces comprise an H gear, an M gear and an L gear; the illuminance of the LED in the H gear is 9000lux, the illuminance of the halogen is 290000lux, and the surface temperature rise is 13-15 ℃; the illuminance of the LED of the M gear is 7000lux, the illuminance of the halogen is 220000lux, and the surface temperature rise is 12-13 ℃; the illuminance of the L-grade LED is 5000lux, the illuminance of the halogen is 170000lux, and the surface temperature rise is 9-10 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810679112.2A CN110638549A (en) | 2018-06-27 | 2018-06-27 | Method and device for bleaching teeth |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810679112.2A CN110638549A (en) | 2018-06-27 | 2018-06-27 | Method and device for bleaching teeth |
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| CN110638549A true CN110638549A (en) | 2020-01-03 |
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| CN201810679112.2A Pending CN110638549A (en) | 2018-06-27 | 2018-06-27 | Method and device for bleaching teeth |
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