CN217828109U - Dental instrument and dental instrument set - Google Patents

Abstract

The application discloses dental instrument and dental instrument suit, wherein the dental instrument includes the first shelly body that has the tooth of holding a plurality of teeth of jaw and the screen of detachable fixed connection in first shelly body labial cheek side, the relative position relation between first shelly body and the screen satisfies after making the dental instrument wears in the jaw the screen keeps in predetermined position in the mouth, predetermined position makes the labial muscle that the screen covered the tooth and corresponds be separated by the screen and with covered tooth contactless, wherein, when the screen receives traction force on predetermined direction is more than or equal to predetermined force value, the screen breaks away from on the first shelly body without destruction. The dental instruments and dental instrument sets herein may be used to break the labial and buccal muscle disorders and treat a variety of problems resulting from poor oral habits.

Description

Dental instrument and dental instrument set

Technical Field

The utility model belongs to the field of dental medical equipment, more precisely relate to a dental equipment and dental equipment suit.

Background

The development of malocclusion resembles growth and development and is the product of the interaction of gene-controlled cell proliferation and environmental factors. After thousands of years of survival and reproduction, the food is more and more refined, the chewing requirements of human beings are greatly weakened, and the subsequent tooth growth is affected by insufficient muscle exercise around the mouth in children.

From age 2 to 5, where children grow most rapidly and incorrect occlusal relationships and dysdontia can be manifested, studies have shown that these early problems persist in later developmental stages and orthodontic problems become more prominent with eruption of permanent teeth. For example, habitual sucking refers to the chronic use of a pacifier, tongue regurgitation and mouth breathing (collectively referred to as muscular dysfunction) are the main causes of jaw dysplasia and tooth crowding. Correcting these bad habits can avoid complicated orthodontic treatment when the subsequent permanent teeth erupt.

In the prior art, frankel appliance or Batters biological regulator is often used to eliminate the centripetal pressure of cheeks and/or lips during alveolar bone development, which is beneficial for the tongue muscle to function. However, the above-mentioned correction is usually made of resin and bent steel wire, the bulk has strong foreign body sensation in the mouth of the patient, and the above-mentioned corrector is fixed in the mouth by the steel wire, and the patient needs to take off the corrector from the mouth when eating or speaking, and the existing corrector is too large in size and inconvenient to take off and wear.

In addition, no matter the Frankel appliance, the Balters biological regulator or other types of muscle exciters on the market, the pressure applied to teeth by the cheeks and/or the lips can only be isolated, after the appliance is removed, the buccinalis or orbicularis oris muscles return to the original positions, and the new balance state of the buccinalis or orbicularis oris muscles at the correct positions cannot be effectively established, so that the muscle remodeling function is realized.

To this end, the present application provides a solution to the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem overcome the defect that prior art exists, provide a dental apparatus, dental apparatus suit and the manufacturing method of dental apparatus that can rescue lip buccinator muscle or orbicularis oris muscle function.

In order to realize the purpose, the utility model adopts the technical scheme as follows:

a dental apparatus comprises a first shell-shaped body and a screen which is detachably and fixedly connected to the labial side of the first shell-shaped body, wherein the first shell-shaped body is provided with a tooth accommodating cavity for accommodating a plurality of teeth of a dental jaw, the screen is kept at a preset position in the mouth after the dental apparatus is worn on the dental jaw, and the preset position enables labial muscles corresponding to the teeth covered by the screen to be blocked by the screen and not contacted with the covered teeth, wherein when the screen is subjected to traction force in a preset direction which is larger than or equal to a preset force value, the screen is separated from the first shell-shaped body without damage.

Preferably, the labial side or the labial-buccal side of the first shell-shaped body is provided with a first connecting part, and the surface of the screen adjacent to one side of the first shell-shaped body is provided with a second connecting part detachably connected with the first connecting part.

Preferably, the first shell-like body has at least two first connecting portions, and the first connecting portions are symmetrically disposed about a tooth centerline.

Preferably, the first connecting portion is provided on a surface of the tooth receiving cavity corresponding to an incisor and/or premolar.

Preferably, the detachable connection structure between the first connection part and the second connection part is a clamping structure.

Preferably, the first connecting part is an anchoring opening structure of the surface of the corresponding tooth receiving cavity, and the anchoring opening structure is provided with an introduction groove and a fixing groove; the second connecting part is arranged on the surface of one side, adjacent to the first shell-shaped body, of the screen in a protruding mode towards the first shell-shaped body; the second connecting part is provided with a guide post corresponding to the leading-in groove and an anchoring part corresponding to the fixing groove, and the guide post slides along the leading-in groove to the anchoring part to be clamped into the fixing groove.

Preferably, the first connecting part is a mounting base adhered to the surface of the first shell-shaped body, and the mounting base is provided with a sliding groove for fixing the second connecting part; the sliding groove is provided with an introduction groove and a fixing groove, and the second connecting part is arranged on the surface of one side of the screen close to the first shell-shaped body in a protruding mode towards the first shell-shaped body; the second connecting part is provided with a guide post corresponding to the guide groove and an anchoring part corresponding to the fixing groove, and the guide post slides to the anchoring part along the guide groove and is clamped into the fixing groove.

Preferably, the guide post has a catch portion that prevents the screen lip or cheek tongue from moving, and a distance between the anchor portion and the catch portion is equal to a thickness of the first shell-shaped body.

Preferably, a portion of the guide post adjacent to the anchor portion passes through the fixing groove, and another portion of the guide post is caught at an outer side of the fixing groove.

Preferably, the first connecting part is a protrusion arranged on one side surface of the corresponding tooth receiving cavity adjacent to the screen; the second connecting portion is a groove which is formed in the surface, close to one side of the first shell-shaped body, of the screen and corresponds to the protrusion.

Preferably, the first connecting part and the second connecting part are connected in a detachable sucker type manner.

Preferably, the first connecting portion is a surface of the tooth receiving cavity, or a surface of the first connecting portion adjacent to the second connecting portion is a smooth horizontal surface.

Preferably, the shield is of an arcuate configuration conforming to the curvature of the dental arch.

Preferably, when worn, the shield is in direct contact with the labial and buccal muscles, which include the upper and lower labial muscles.

Preferably, the labyrinthine muscles further include upper and lower buccinalis muscles on the left and right sides.

Preferably, the width of the shield in the vertical direction is gradually reduced from the front tooth area to the rear tooth area.

Preferably, the shield covers the entire crowns of the teeth in the posterior region.

Preferably, the shield extends from 1mm to 2mm from the maxillary vestibular sulcus to 1mm to 2mm from the mandibular vestibular sulcus.

Preferably, the width of the front tooth area of the screen in the vertical direction is not more than 1.8cm and/or the width of the rear tooth area is not less than 0.8cm.

Preferably, the surface of the shield adjacent to the labial side is provided with a traction part, and the traction part is convexly arranged from the labial side to the labial side of the shield.

Preferably, the traction part is detachably connected with the screen.

Preferably, the traction part is in threaded connection with the screen shield, a screw is arranged on one side, adjacent to the screen shield, of the traction part, and a threaded hole penetrating through the screen shield is formed in the screen shield.

Preferably, the surface of the shield is provided with a vent hole penetrating through the shield.

Preferably, the tooth receiving cavity has a geometry that allows the teeth it surrounds to move from a first position to a second position.

A dental instrument set comprises the dental instrument set, and further comprises a second shell-shaped body with a tooth receiving cavity for a plurality of teeth in a jaw, wherein a locking part which can be detached from a second connecting part on the screen is arranged on the labial side and/or the buccal side of the second shell-shaped body.

Preferably, the second connecting portion and the first connecting portion on the first shell-shaped body are connected and locked in the relative position relationship between the upper and lower jaws simultaneously with the locking portion, respectively.

Preferably, the second connecting portion and the locking portion are detachable clamping structures or suction disc type connecting structures.

Through the utility model provides a dental instrument and dental instrument suit can bring following at least one beneficial effect:

1. the utility model provides a dental appliance includes that first shell form body and screen keep off between for dismantling the connection, when the screen keeps off and this body coupling of first shell form uses, the screen keeps off can separation lip buccinator to exert pressure to the tooth, provides abundant space for tooth growth, dental arch development. In addition, when the screen receives external pulling force, just break away from first shell form body very easily, the screen after breaking away from pulls it, can be used to carry out the lip cheek muscle and correct. The screen in this application keeps off simple structure, convenient operation, through with first shelly body between special connection setting, make it can break the anomaly of lip cheek muscle, can train again to lip cheek muscle and establish new muscle balance.

2. The utility model discloses still include a dental instrument suit, dental instrument suit has the first shelly body and the second shelly body of wearing respectively in patient's maxilla and mandible to and can dismantle the screen fender of connection respectively with first shelly body and second shelly body. The relative position relationship of the upper jaw and the lower jaw can be locked through the screen, so that the problems of mouth breathing and tongue spitting of a patient are corrected.

3. The utility model provides a screen keeps off simple structure, and it is convenient to make, can correct multiple oral cavity problem simultaneously, and it is extensive to be suitable for the case. Meanwhile, the screen and the shell-shaped body are of a detachable structure, so that the cleaning is facilitated, and food residues are not easy to accumulate.

Drawings

The foregoing features, technical features, advantages and embodiments are further described in the following detailed description of the preferred embodiments, which is to be read in connection with the accompanying drawings.

FIG. 1 is a schematic view of one embodiment of a dental implement according to the present invention;

FIG. 2 is a schematic view of another embodiment of a dental implement according to the present invention;

FIG. 3 is a schematic view of one embodiment of a first shell-like body of the dental implement of the present invention;

FIG. 4 is a schematic view of one embodiment of a shield in a dental implement according to the present invention;

FIG. 5 is a partial enlarged view of area A in FIG. 3;

FIG. 6 is a partial enlarged view of the area B in FIG. 4;

FIG. 7 is a schematic view of another embodiment of a first shell-like body of a dental implement according to the present invention;

FIG. 8 is a schematic view of an embodiment of a second coupling portion of a dental implement according to the present invention;

FIG. 9 is a schematic view of another embodiment of a second coupling portion of a dental implement according to the present invention;

FIG. 10 is a schematic view of another embodiment of a first shell-like body of a dental implement according to the present invention;

FIG. 11 is a schematic view of another embodiment of a shield in a dental implement according to the present invention;

FIG. 12 is a schematic view of another angle in FIG. 11;

FIG. 13 is a schematic view of another embodiment of a shield in a dental implement according to the present invention;

FIG. 14 is a schematic view of another embodiment of a shield for a dental implement according to the present invention;

FIG. 15 is a schematic view of another embodiment of a shield for a dental implement according to the present invention;

fig. 16 is a flow chart of a method of manufacturing a dental implement according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following describes each embodiment of the present application in detail with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in various embodiments of the present application in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present application, and the embodiments may be mutually incorporated and referred to without contradiction.

The directional terms used in the description herein, such as "upper", "lower", "left", "right", etc., are directions in the drawings, and do not denote any particular limitation.

The "posterior dental zone" in this application is defined according to the classification of teeth in the 2 nd edition, pages 36-38, of the introduction to oral medicine published by Beijing university medical Press, including premolar and molars, as teeth 4-8 by FDI notation, and as teeth 1-3 by FDI notation for the anterior dental zone. The anterior tooth zone of first shell-like body can be used to hold the middle incisor, lateral incisor and cuspid of the tooth, and the posterior tooth zone of first shell-like body can be used to hold the first premolar, second premolar, first molar, second molar and third molar of the tooth.

Referring to fig. 1 to 4, the present invention provides a dental apparatus 100 including a first shell-shaped body 1 having a tooth receiving cavity 11 for receiving a plurality of teeth of a jaw and a shield 2 detachably fixed to a labial-buccal side of the first shell-shaped body 1. First shell form body 1 can be used for wearing on patient's upper jaw dentition or on the lower jaw dentition to wrap up all teeth on the dentition, first shell form body 1's labial surface or labial and buccal surface have first connecting portion 12, the tooth in first shell form body 1's anterior teeth district promptly accomodates the surface in chamber 11, or the tooth in anterior teeth district and back teeth district accomodates the surface in chamber 11 and has first connecting portion 12, the surface that screen fender 2 is close to first shell form body 1 one side is equipped with can dismantle the second connecting portion 22 of being connected with first connecting portion 12. When the dental apparatus 100 is worn in the mouth of a patient, the shield 2 is positioned to a predetermined position by the first connecting portion 12 and the second connecting portion 22, that is, the relative position relationship between the first shell-shaped body 1 and the shield 2 is such that the shield 2 is kept at the predetermined position in the mouth after the dental apparatus 100 is worn in the jaw. The predetermined position is such that the muscles of the portion of the buccinator corresponding to the teeth covered by the screen 2 are blocked by the screen 2 from contacting the covered teeth, i.e. the teeth covered by the screen 2 can be kept separated from their corresponding buccinator, ensuring that the buccinator does not exert an inward pressure on these teeth. In addition, the connection between first connecting portion 12 and second connecting portion 22 is for dismantling the connection and satisfying when the screen 2 receives traction force more than or equal to predetermined power value in the predetermined direction, screen 2 can break away from on first shell body 1 without destruction, and then the patient can utilize screen 2 after the separation to carry out the training of lip cheek muscle for the lip cheek muscle can establish the equilibrium state in new position. In use, the dental tool 100 of the present application is subjected to a force exceeding 2N out of the mouth, and the first and second connection portions 12 and 22 are separated from each other.

In some embodiments, the first shell-like body 1 has at least two first connection portions 12, and all the first connection portions 12 are symmetrically disposed about the tooth centerline such that the traction force (load) between the first connection portions 12 and the second connection portions 22 is uniformly distributed. The first coupling portion 12 may be provided on an outer surface of the tooth receiving cavity 11 corresponding to an incisor and/or premolar, where the outer surface is a labial/buccal surface. Specifically, when the first shell-shaped body 1 has two first connecting portions 12, the first connecting portions 12 are arranged at the positions of teeth 3-4 corresponding to the tooth receiving cavities 11; when the first shell-shaped body 1 has three first connecting parts 12, one of the first connecting parts 12 is arranged at the tooth receiving cavity 11 corresponding to the tooth position 1-1 and is axially symmetrical about the tooth midline; the preferred embodiment is that the first shell-shaped body 1 is provided with four first connecting parts 12 which are respectively arranged on the tooth receiving cavities 11 corresponding to the middle incisors and the No. 5 teeth positions, because the tooth receiving cavity 11 of the middle incisors is the tooth receiving cavity 11 with the largest surface area, the first connecting part 12 can be placed in a sufficient area, and in addition, the tooth receiving cavity 11 corresponding to the No. 5 teeth position is the tooth receiving cavity 11 with the gentlest outer surface, the angle and orientation design of the first connecting part 12 are more convenient at this place, and the influence of the tooth receiving cavity 11 on the design of the first connecting part 12 is not excessively considered.

In some embodiments, the detachable connection structure between the first connection portion 12 and the second connection portion 22 is a snap-fit structure. As shown in fig. 5 and 6, the first connecting portion 12 is an anchoring opening structure on the outer surface of the tooth receiving cavity 11, and the anchoring opening structure has an introduction groove 121 and a fixing groove 122; the second connecting portion 22 is disposed on the surface of the shield 2 adjacent to one side of the first shell-shaped body 1 and is disposed to protrude toward the first shell-shaped body 1, and the second connecting portion 22 may be integrally formed with the shield 2, specifically, the surface of the shield 2 adjacent to the first shell-shaped body 1 may be disposed to protrude toward the first shell-shaped body 1. The second connecting portion 22 has a guide post 221 corresponding to the introduction groove 121 and an anchor portion 222 corresponding to the fixing groove 122, and the guide post 221 slides along the introduction groove 121 until the anchor portion 222 is caught in the fixing groove 122.

Specifically, the width of the introduction groove 121 is larger than the size of the guide post 221 so that the guide post 221 can smoothly pass through the introduction groove 121, and the size of the anchor portion 222 is larger than the size of the fixing groove 122 so that the second connection portion 22 is not easily detached from the first connection portion 12 after being snapped into the first connection portion 12. The introduction groove 121 may have an opening structure extending in the vertical direction, and the first connection portion 12 and the second connection portion 22 are vertically engaged with each other, or the introduction groove 121 may have an opening structure extending at an angle to the vertical direction, and the first connection portion 12 and the second connection portion 22 are laterally engaged with each other at an angle. The two types of engagement can be selected according to the positions of the first connection portion 12 and the second connection portion 22.

The connection relationship between the first connection portion 12 and the second connection portion 22 is also required to satisfy that the screen 2 is detached from the first shell-like body 1 without damage when the screen 2 is subjected to a traction force in a predetermined direction which is greater than or equal to a predetermined force value. In this embodiment, specifically, when it is required to separate the screen 2 from the first shell-shaped body 1, the patient can pull the screen 2 to the outside of the oral cavity, and when the pulling force reaches a predetermined force value, that is, a force value at which the anchor portion 222 is elastically deformed to be separated from the fixing groove 122, the first connecting portion 12 is separated from the second connecting portion 22. The second connecting portion 22 is made of a material having an elastic bending ability, and can be made of a medical silicone rubber material, which can recover its original shape after being deformed by extrusion.

The screen keeps off 2 structures in this application also can adopt medical silicon rubber material, and silicon rubber has certain supporting capacity, can effectual separation lip buccinator with correspond the dentition contact to the screen keeps off the soft tissue in 2 laminating patient oral cavities, uses silicon rubber can provide soft comfortable result of use.

In other embodiments, referring to fig. 7, the first connecting portion 12 is a mounting base adhered to the outer surface of the first shell-like body 1. The mounting base may be a hollow structure, and the outer surface of the mounting base has an anchoring opening structure consistent with the above structure, or the mounting base is a solid structure, and the surface of the mounting base adjacent to one side of the second connecting portion 22 has a groove structure matching with the shape of the second connecting portion 22, and the second connecting portion 22 can be snapped into the groove.

In some embodiments, when the second connecting portion 22 is a protruding structure having the guiding post 221 and the anchoring portion 222, the first connecting portion 12 is an anchoring opening structure on the outer surface of the tooth receiving cavity 11, or the first connecting portion 12 is a mounting base with a hollow structure, referring to fig. 8, the guiding post 221 may further be provided with a retaining portion 223 for preventing the labial or buccolingual movement of the shield 2, and the distance h1 between the anchoring portion 222 and the retaining portion 223 is equal to the thickness of the first housing or the wall thickness of the mounting base.

In other embodiments, when the second connecting portion 22 is a protruding structure having the guide post 221 and the anchor portion 222, the first connecting portion 12 is an anchor opening structure on the outer surface of the tooth receiving cavity 11, or the first connecting portion 12 is a mounting base with a hollow structure, referring to fig. 9, a portion of the guide post 221 adjacent to the anchor portion 222 passes through the fixing groove 122, another portion of the guide post 221 is held outside the fixing groove 122, specifically, the guide post 221 may be a circular truncated cone structure with inconsistent width, specifically, the width h2 of the guide post 221 gradually increases from one end adjacent to the tooth receiving cavity 11 to one end away from the tooth receiving cavity 11, the smallest width of the guide post 221 is smaller than the width of the introduction groove 121, and the largest width of the guide post 221 is larger than the width of the introduction groove 121.

Of course, in other embodiments, the first connecting portion 12 may be a protruding structure having the guiding post 221 and the anchoring portion 222, and the second connecting portion 22 is a slot structure corresponding to the first connecting portion 12, and as shown in fig. 10 in particular, the first connecting portion 12 is a protruding structure protruding from the outer surface of the tooth receiving cavity 11 in the direction away from the teeth, and the protruding first connecting portion 12 is integrally formed with the first shell-shaped body 1. The second connecting portion 22 is a groove formed by the screen 2 being adjacent to one side surface of the first shell-shaped body 1 and being recessed towards the far tooth direction, the near tooth end of the groove is a channel structure, and the end of the channel structure is an embedded groove with the same shape as the anchoring portion 222 of the first connecting portion 12, so that the second connecting portion 22 on the screen 2 can be detachably and fixedly connected with the first connecting portion 12 along the lip (cheek) tongue direction.

In some embodiments, referring to fig. 2 and 11, the first connection portion 12 and the second connection portion 22 are a detachable suction cup type connection. The screen keeps off 2 and is equipped with the second connecting portion 22 that have loudspeaker sucker structure on being close to first shell form body 1's the surface, first connecting portion 12 can be the tooth and accomodate the surface of chamber 11, second connecting portion 22 direct absorption is accomodate on the tooth surface of chamber 11, or first connecting portion 12 can be the setting and accomodate the protruding platform of chamber 11 surface light to the tooth direction of keeping away in the tooth, the surface that the platform is close to second connecting portion 22 sets up to glossy horizontal surface, provide better adsorption condition between first connecting portion 12 and the second connecting portion 22, make screen keep off 2 can not be under the condition of not receiving external force, drop from first shell form body 1.

In some embodiments, the shield 2 has an arcuate configuration conforming to the curvature of the dental arch. Alternatively, and with reference to fig. 1, the shield 2 may be adapted to shield only the teeth in the anterior area from contact with the upper and lower labial muscles, so that the shield 2 need only cover all of the teeth in the anterior area of the upper and lower dentitions. The screen 2 is contacted with the corresponding gingiva of all the teeth in the anterior teeth area of the upper and lower jaw dentition at the same time, and the screen 2 can extend from a position 1mm-2mm away from the upper jaw vestibular sulcus to a position 1mm-2mm away from the lower jaw vestibular sulcus. Thereby avoiding irritation of muscles at the vestibular sulcus.

In addition, referring to fig. 2, the structure of the shield 2 can be selected to block the contact of the maxillary and mandibular dentitions with the labial-buccinator in the anterior and posterior dental regions. The labial and buccal muscles herein specifically refer to the upper labial muscles, the lower labial muscles, and the upper and lower buccal muscles on the left and right sides. In this embodiment, as shown in fig. 12, the width of the screen 2 in the vertical direction (X-axis direction in the drawing) gradually decreases from the anterior dental region to the posterior dental region. The shield 2 can cover all dental crowns of teeth in the anterior dental area and the posterior dental area, the shield 2 in the anterior dental area extends from a position 1mm-2mm away from the upper jaw vestibular sulcus to a position 1mm-2mm away from the lower jaw vestibular sulcus, and the maximum value of the width H1 of the shield 2 in the vertical direction of the anterior dental area is 1.8cm; the shield 2 extends from the gingival margin ends of the teeth of the maxillary posterior area to the gingival margin ends of the teeth of the maxillary posterior area in the posterior dental area. And the width H2 of the shield 2 in the vertical direction of the front tooth area is 0.8cm at the minimum.

In addition, as shown in fig. 13, a v-shaped notch 23 may be further formed at a middle position of the front tooth area of the screen 2 to provide a labial frenulum avoiding area. The length in the vertical direction is about 2mm.

In some embodiments, referring to fig. 4, the surface of the screen 2 adjacent to the labial side is further provided with a traction part for training the strength of the perioral muscles, and the traction part is protruded from the labial side of the screen 2 to the labial side. Preferably, the screen 2 with the traction part is made of an integrally formed structure by using a high-temperature high-pressure punch forming process and medical silicon rubber as a material.

In other embodiments, as shown in fig. 14, the surface of the shield 2 is further provided with a plurality of ventilation holes 24 therethrough, which are arranged to facilitate the effective ventilation of air from the mouth to the outside of the patient after using the dental apparatus 100.

In other embodiments, referring to fig. 15, a traction portion provided on a surface of the shield 2 adjacent to the lip side is separately connected to the shield 2, specifically, the traction portion is connected to the shield 2 by a screw, a screw is provided on a side of the traction portion adjacent to the shield 2, and a through screw hole 26 is provided on the shield 2. Dental appliance 100 in the application is in the use, screen fender 2 can be fixed on first shell form body 1 through first connecting portion 12 and second connecting portion 22, screen fender 2 separates the contact of lip buccinator muscle and corresponding dentition, provide sufficient space for patient's tooth growth and development, when needs screen fender 2 carries out the flesh training all around the mouth, keep off 2 with screen fender 1 separately with first shell form body, then connect the pars tracting part in screen fender 2 lip side, the patient utilizes the pars tracting part to train all around the mouth flesh, make the muscle reach the balanced state in new position.

In addition, referring to fig. 13, a clamping structure may be provided before the traction portion and the screen 2, a vent hole 24 structure is added in the front tooth area of the screen 2, the vent hole 24 has two holes, a cross bar structure 25 is provided in the middle, and a structure clamped with the vent hole 24 and the cross bar structure 25 may be provided at one end of the traction portion adjacent to the screen 2, or the cross bars may be wired and then stretched to assist in applying force.

In some embodiments, the first shell-like body 1 of the present application has a dental appliance that can apply shifting, steering forces and moments to the wrapped teeth. I.e. the tooth-receiving cavity 11 of the first shell-like body 1 has a geometry such that its wrapped tooth is moved from a first position to a second position.

The present application further includes a dental instrument set including the dental instrument 100 as described above, and further including a second shell-shaped body having a tooth receiving cavity 11 for receiving a plurality of teeth in a jaw, wherein the first shell-shaped body and the second shell-shaped body are respectively worn on upper and lower jaw dentitions of a patient, and a locking portion detachable from the second connecting portion 22 is also provided on a labial side and/or a buccal side of the second shell. The second connecting portion 22 simultaneously locks the relative positional relationship of the upper and lower jaws with the first connecting portion 12 and the locking portion. Generally, the dental instrument set is used for correcting mouth breathing at night, and the screen 2 can lock the upper jaw and the lower jaw to be in an occlusion state, so that the patient is helped to breathe excessively from the mouth to the nose.

The second connecting portion 22 and the locking portion are detachably connected by a snap structure or a suction cup type connecting structure. The specific structure between the locking portion and the second connecting portion 22 is the same as the connection relationship between the first connecting portion 12 and the second connecting portion 22, and reference is made to the above-mentioned embodiment between the first connecting portion 12 and the second connecting portion 22, which is not repeated herein.

Referring now to fig. 16, a schematic flow chart of a method of manufacturing dental appliance 100 according to one embodiment of the present application is shown,

in step 400, oral data of a patient is obtained, the oral data including dental data, gingival data, and labial and buccal muscle data of the patient. In one embodiment, the patient's oral data may be obtained by direct measurement of the patient's oral cavity. In yet another embodiment, a silicone impression can be taken of the patient's mouth and the model can then be measured to obtain data for the patient's mouth. In yet another embodiment, the patient's mouth may be scanned to obtain a three-dimensional digital model, which is then measured to obtain data of the patient's mouth, and the scanning device may include an intraoral scanner, cone-beam CT (CBCT), helical CT, and the like.

Specifically, the dental data includes tooth shape, arch length, and arch curvature profile. The labial and buccal muscle data include the contour of the sulcus floor of the upper and lower mandibular vestibules, the contour of the upper and lower labial muscles, and the contour of the upper and lower buccal muscles on the left and right sides.

In step 500, a three-dimensional model representing the dental instrument 100 is generated based on oral data acquired in any of the above manners; the three-dimensional model comprises a three-dimensional model of a screen 2 and a three-dimensional model of a first shell-shaped body 1. The three-dimensional model of the first shell-like body 1 may be a model of the patient's dentition or a shell appliance model corresponding to the dentition model.

Based on the correction scheme, a first connecting part 12 model generated according to the correction scheme is arranged on the three-dimensional model of the first shell-shaped body 1, and a second connecting part 22 model generated according to the correction scheme is arranged on the three-dimensional model of the screen 2.

In addition, a traction part model can be designed at the front end of the screen 2 three-dimensional model according to the requirements of the correction scheme. And the front end of the three-dimensional model of the screen 2 also has a vent hole 24 that extends through the screen 2 in the sagittal direction.

In step 600, a dental implement 100 comprising a first shell-like body 1 and a screen 2 is made from the three-dimensional model. In an embodiment, the dental instrument 100 with the first shell-like body 1 and the screen 2 is manufactured according to the three-dimensional model using an additive manufacturing method.

The additive manufacturing can also be called 3D printing, combines computer aided design, material processing and forming technology, and is a manufacturing technology for manufacturing solid objects by stacking special metal materials, non-metal materials and medical biological materials layer by layer in modes of extrusion, sintering, melting, photocuring, spraying and the like through a software and numerical control system on the basis of a digital model file.

It should be noted that, in the above embodiments, the embodiments can be freely combined as required to form different new embodiments without contradiction, and the embodiments formed after the combination are all within the protection scope of the present application, and are not repeated herein for the sake of saving text.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.

Similarly, the above description is only a specific embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall cover the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (27)

1. A dental instrument, comprising a first shell-shaped body having a tooth receiving cavity for receiving a plurality of teeth of a dental jaw, and a shield detachably and fixedly attached to a labial side of the first shell-shaped body, wherein a relative positional relationship between the first shell-shaped body and the shield is such that the shield is held in a predetermined position in a mouth after the dental instrument is worn on the dental jaw, and the predetermined position is such that a labial muscle corresponding to a tooth covered by the shield is blocked by the shield so as not to contact the covered tooth, wherein the shield is detached from the first shell-shaped body without damage when a traction force applied to the shield in a predetermined direction is equal to or greater than a predetermined force value.

2. A dental apparatus as in claim 1, wherein the labial or labial side of the first shell-like body has a first connection portion, and the surface of the shield adjacent the first shell-like body has a second connection portion detachably connected to the first connection portion.

3. A dental instrument as in claim 2, wherein the first shell-like body has at least two of the first connections and the first connections are symmetrically disposed about a tooth midline.

4. A dental apparatus according to claim 3, wherein the first connection portion is provided on a surface of the tooth receiving cavity corresponding to an incisor and/or premolar.

5. A dental instrument as in claim 2, wherein the releasable connection between the first and second connection portions is a snap-fit connection.

6. A dental apparatus as in claim 5, wherein the first connection is an anchor opening structure of the corresponding tooth receiving cavity surface, the anchor opening structure having an introduction slot and a fixation slot; the second connecting part is arranged on the surface of one side, adjacent to the first shell-shaped body, of the screen in a protruding mode towards the first shell-shaped body; the second connecting part is provided with a guide post corresponding to the leading-in groove and an anchoring part corresponding to the fixing groove, and the guide post slides along the leading-in groove to the anchoring part to be clamped into the fixing groove.

7. A dental instrument as in claim 5, wherein the first connection is a mounting base bonded to a surface of the first shell-like body, the mounting base having a channel for securing the second connection; the sliding groove is provided with an introduction groove and a fixing groove, and the second connecting part is arranged on the surface of one side of the screen close to the first shell-shaped body in a protruding mode towards the first shell-shaped body; the second connecting part is provided with a guide post corresponding to the guide groove and an anchoring part corresponding to the fixing groove, and the guide post slides to the anchoring part along the guide groove and is clamped into the fixing groove.

8. A dental instrument according to claim 6 or 7, wherein the guide post has a catch which prevents the screen lip or cheek tongue from moving, the distance between the anchor and the catch being equal to the thickness of the first shell-like body.

9. A dental instrument as in claim 6 or 7, wherein a portion of the guide post adjacent the anchor portion passes through the fixation slot and another portion of the guide post is captured outside the fixation slot.

10. A dental instrument as in claim 5, wherein the first connection is a protrusion of the corresponding tooth receiving cavity disposed adjacent a side surface of the shield; the second connecting portion is a groove which is formed in the surface, close to one side of the first shell-shaped body, of the screen and corresponds to the protrusion.

11. A dental instrument as in claim 2, wherein the first connection portion and the second connection portion are a detachable suction cup connection therebetween.

12. A dental apparatus as in claim 11, wherein the first connection portion is a surface of a tooth receiving cavity or a surface of the first connection portion adjacent the second connection portion is a smooth, horizontal surface.

13. A dental instrument as in claim 1, wherein the shield is an arch conforming to the curvature of the dental arch.

14. A dental apparatus as in claim 1, wherein the shield is in direct contact with the labial and buccal muscles when worn, the labial and buccal muscles including the upper and lower labial muscles.

15. A dental apparatus as in claim 14, wherein the labrocoudorus muscles further comprise left and right upper and lower bucoudorus muscles when worn.

16. A dental instrument as in claim 1, wherein the width of the shield in the vertical direction decreases from the anterior dental zone to the posterior dental zone.

17. A dental implement according to claim 16 or 15, wherein the shield covers the entire crowns of the teeth in the posterior region.

18. A dental device according to claim 16 or 14, wherein the shield extends from 1mm to 2mm from the maxillary vestibular sulcus to 1mm to 2mm from the mandibular vestibular sulcus.

19. A dental instrument as in claim 16, wherein the shield has a width in the vertical direction of the anterior dental zone of no more than 1.8cm and/or a width of the posterior dental zone of no less than 0.8cm.

20. A dental instrument as in claim 1, wherein the surface of the shield adjacent the labial side is provided with a traction portion projecting from the labial side of the shield toward the labial side.

21. A dental implement according to claim 20, wherein the pull and shield are removably attached.

22. A dental apparatus as in claim 21, wherein said traction portion is threadably engaged with said shield, said traction portion having a threaded rod disposed on a side thereof adjacent to said shield, said shield having a threaded bore therethrough.

23. A dental instrument as claimed in claim 1 or 22, wherein a surface of the shield is provided with ventilation holes therethrough.

24. A dental implement according to claim 1, wherein the tooth receiving cavity has a geometry which allows the tooth it surrounds to move from a first position to a second position.

25. A dental kit, comprising a dental device according to any of claims 1-24, further comprising a second shell-like body having a tooth receiving cavity for a plurality of teeth of the jaw, wherein the labial and/or buccal side of the second shell-like body is provided with a locking portion detachable from the second connection portion on the shield.

26. A dental kit according to claim 25, wherein the second connecting portion and the first connecting portion on the first shell-like body are simultaneously connected with the locking portion to lock the relative positions of the upper and lower jaws, respectively.

27. The kit of dental instruments of claim 26, wherein the second connector and the locking portion are removable snap-fit structures or suction cup-type connection structures.

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