Veneer bonding guide plate, auxiliary positioning plate and veneer bonding pressing tool

Abstract

This invention belongs to the field of medical devices, specifically relating to a veneer bonding guide, an auxiliary positioning plate, and a pressing tool for veneer bonding. The guide includes a guide body comprising a positioning part, a lingual part disposed on the lingual side of the positioning part, and a labial part disposed on the labial side of the positioning part. The positioning part includes a plurality of spaced positioning grooves that engage with the incisal edge of the tooth and position the veneer horizontally relative to the tooth. The labial part positions the veneer vertically relative to the tooth. The veneer bonding guide of this invention, through positioning with the patient's teeth, assists the dentist in finding the accurate position of the veneer on the corresponding tooth and achieves the function of retaining all veneers. The auxiliary positioning plate of this invention can position the neck of all veneers at once, eliminating the need for the dentist to press each veneer individually, simplifying the dentist's operation and avoiding the problem of veneer breakage caused by excessive pressure on a single veneer.

Description

Technical Field

[0001] This invention belongs to the field of medical devices, specifically relating to a veneer bonding guide plate, an auxiliary positioning plate, and a pressing tool for veneer bonding. Background Technology

[0002] Veneers are thin dental restorations that are bonded to the surface of teeth to restore and improve their appearance. Based on years of clinical experience in veneer bonding, dentists currently face the following main challenges:

[0003] During veneer bonding, it is crucial to accurately determine the position of each veneer on its corresponding tooth. Teeth with ultra-thin, non-grind veneers lack a path of insertion and shoulder, making accurate positioning difficult. A misalignment in one veneer can affect the placement of other teeth. During partial full-mouth bonding, if all veneers cannot be secured as a whole, the dentist must repeatedly check the placement of each veneer, resulting in low accuracy and being time-consuming and labor-intensive.

[0004] In recent years, some in the industry have proposed a guide plate for veneer bonding. This guide plate includes an arc-shaped guide plate body with multiple adjusting rods inserted through it. Each adjusting rod has a veneer placement groove near the tooth, the shape and size of which matches the veneer. During use, the veneer is first installed in the veneer placement groove, then the guide plate is placed on the tooth. The adjusting rods are then pushed to ensure a tight fit between the veneer in the groove and the tooth. After light curing, the guide plate is removed. While this guide plate can improve veneer bonding efficiency and accuracy to some extent, it still has the following problems:

[0005] 1) When applying multiple patches, the doctor needs to operate the adjustment rods one by one, which is not convenient;

[0006] 2) The guide plate lacks horizontal positioning of the veneer, requiring the doctor to correct each veneer individually. Summary of the Invention

[0007] To overcome the shortcomings of the prior art, the present invention provides a technical solution for a veneer bonding guide plate, an auxiliary positioning plate, and a pressing tool for veneer bonding.

[0008] A veneer bonding guide includes a guide body, the guide body including a positioning part, a lingual part disposed on the lingual side of the positioning part and a labial part disposed on the labial side of the positioning part, the positioning part including a plurality of positioning grooves, the positioning grooves positioning the teeth and the incisors of the veneer, and positioning the installation position of the veneer relative to the teeth.

[0009] Furthermore, the positioning part also includes a guide plate positioning protrusion disposed between adjacent positioning alveoli, the guide plate positioning protrusion engaging with the triangular gap at the incisal edge of the tooth.

[0010] Furthermore, the positioning alveolar includes a lingual alveolar wall near the lingual side, a labial alveolar wall near the labial side, and two alveolar side walls that are oppositely arranged and connected between the lingual alveolar wall and the labial alveolar wall. The lingual alveolar wall abuts against the lingual surface of the incisal end of the tooth, and the labial alveolar wall abuts against the labial surface of the incisal end of the veneer. The two adjacent alveolar side walls on two adjacent positioning alveolar holes form a guide plate positioning protrusion.

[0011] Furthermore, some or all of the positioning alveoli are vertically continuous structures, allowing excess adhesive to be discharged from the crown end of the positioning alveoli.

[0012] Furthermore, an observation window is provided on the labial side that connects to the positioning alveolar ridge.

[0013] Compared with the prior art, the beneficial effects of the veneer bonding guide plate of the present invention are as follows:

[0014] 1) The veneer bonding guide of the present invention achieves positioning with the incisal edge of the patient's teeth and the triangular gap at the incisal edge of the teeth by positioning the tooth socket and the guide plate positioning protrusion, thereby assisting the doctor in finding the accurate position of the veneer on the corresponding teeth.

[0015] 2) The veneer bonding guide plate of the present invention achieves simultaneous positioning of multiple veneers in horizontal installation positions through positioning grooves, and achieves simultaneous positioning of multiple veneers in vertical installation positions through the lip side, making the veneer bonding operation simpler and improving the success rate of veneer bonding.

[0016] The present invention also provides an auxiliary positioning plate for use in conjunction with the veneer bonding guide as described above, comprising a positioning plate body, wherein the positioning plate body is worn on the tooth and located at the root end of the veneer bonding guide, and its lingual side positions the veneer at the vertical installation position relative to the tooth.

[0017] Furthermore, a number of neck positioning protrusions are arranged at intervals on the tongue side of the positioning plate body, and the neck positioning protrusions are engaged with the triangular gaps at the neck of the teeth.

[0018] Furthermore, the positioning plate body is provided with a positioning plate connecting part, and the guide plate body is provided with a guide plate connecting part, and the positioning plate connecting part and the guide plate connecting part are detachably connected.

[0019] Furthermore, one of the positioning plate connecting part and the guide plate connecting part is a buckle and the other is a slot, and the buckle and the slot engage.

[0020] Furthermore, the buckle can be adjusted in the vertical direction to change its installation position on the slot, thereby adjusting the distance between the positioning plate body and the guide plate body.

[0021] Furthermore, the slot opening faces the lip side, and the main body of the buckle is inserted into the slot through the slot opening. A plug is provided at one end of the buckle. When the positioning plate body is at the position with the largest distance from the guide plate body, the plug is in contact with the crown end of the slot.

[0022] Compared with the prior art, the auxiliary positioning plate of the present invention works in conjunction with the labial part of the veneer bonding guide to achieve vertical positioning of the veneer relative to the tooth. Moreover, the auxiliary positioning plate can press and adjust the corresponding part of the veneer and the tooth neck at one time, eliminating the need for the doctor to press each veneer individually, simplifying the doctor's operation. Furthermore, the fact that all veneers are subjected to force together can avoid the problem of veneer breakage caused by excessive pressure on a single veneer.

[0023] The present invention also provides a pressing tool for bonding adhesive surfaces, used in conjunction with the bonding guide plate described above, comprising:

[0024] Housing assembly;

[0025] The pressing head is slidably engaged with the housing assembly and configured such that, in the use state, the pressing head extends from the housing assembly to provide pressure for the surface to be applied;

[0026] An elastic element is disposed within the housing assembly and configured to provide elastic force to the pressing head in the use state.

[0027] Furthermore, the pressing head is a miniature vibrator.

[0028] Furthermore, a switch is provided on the housing assembly, which controls the operation of the micro vibrator.

[0029] Furthermore, a power module is provided on the housing assembly, which supplies power to the micro vibrator.

[0030] Furthermore, the elastic element and the power module are housed in a housing assembly, which is composed of multiple detachably connected parts.

[0031] Furthermore, a slide bar is provided on the side of the pressing head, and a window is provided on the housing assembly to slide in cooperation with the slide bar.

[0032] Furthermore, the elastic element is a spring or a sheet spring.

[0033] Furthermore, the pressing head and / or housing assembly are provided with scales.

[0034] Compared with the prior art, the beneficial effects of the pressing tool for bonding veneers in this invention are:

[0035] The pressure tool for applying veneers is designed with a pressure head, a housing assembly, and an elastic element. The pressure head applies pressure to the veneer, while the elastic element allows the doctor to apply more controllable, accurate, and stable pressure, reducing the risk of misoperation. This achieves the following objectives:

[0036] 1) The veneer will not crack due to excessive pressure;

[0037] 2) Excessive pressure will not cause excessive adhesive overflow, creating cavities in the adhesive space and affecting the color and bonding effect;

[0038] 3) The veneer will not float on the tooth surface due to insufficient pressure, which may cause it to fall off later. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of Example 1;

[0040] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0041] Figure 3 This is a schematic diagram of the wearing state structure in Example 2;

[0042] Figure 4 This is a schematic diagram of the maxillary structure.

[0043] Figure 5 This is a schematic diagram of the veneer structure;

[0044] Figure 6 This is a schematic diagram of the external structure of Example 3;

[0045] Figure 7 This is a schematic diagram of the internal structure of Example 3.

[0046] In the diagram: veneer bonding guide 1, lingual side 102, labial side 103, positioning alveolar 1011, guide positioning protrusion 1012, observation window 1031, slot 1032, auxiliary positioning plate 2, positioning plate body 201, neck positioning protrusion 202, buckle 203, plug 2031, gingiva 3, tooth 4, tooth incisal end 401, tooth incisal end triangular gap 402, tooth neck 403, tooth neck triangular gap 404, veneer 5, veneer incisal end 501, veneer neck 502, pressing tool 6, pressing head 601, slide bar 6011, elastic element 602, housing assembly 603, window 6031, front shell 6032, middle shell 6033, partition 60331, spring seat 60332, end cap 6034, switch 604, power module 605. Detailed Implementation

[0047] In the description of this invention, it should be understood that the term "lingual side" refers to the side of a tooth and veneer that is closer to the tongue, and the term "labial side" refers to the side of a tooth that is closer to the lips, and the term "crown end" refers to the end of a veneer, the auxiliary positioning plate, and the veneer that is closer to the crown of the tooth when worn on the tooth; the term "root end" refers to the end of a veneer, the auxiliary positioning plate, and the veneer that is closer to the root of the tooth when worn on the tooth.

[0048] Combination Figure 2 The XYZ coordinate axes further explain the terms "lingual," "labial," "crown end," and "root end": "Lingual" is the side in the negative X-axis direction, "labial" is the side in the positive X-axis direction, "crown end" is the end in the negative Z-axis direction, and "root end" is the end in the positive Z-axis direction. Furthermore, the term "left and right" used in this invention refers to... Figure 2 The Y-axis direction in the diagram.

[0049] In the description of this invention, it should be understood that the terms "up and down", "left and right", and "front and back" are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0050] The invention will now be further described with reference to the accompanying drawings.

[0051] Example 1

[0052] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 A veneer bonding guide plate is a one-piece molded structure that can be produced by injection molding or 3D printing. It includes a guide plate body, which includes a positioning part 101, a lingual part 102 disposed on the lingual side of the positioning part 101, and a labial part 103 disposed on the labial side of the positioning part 101. The positioning part 101 includes a plurality of continuously arranged positioning grooves 1011, which position the teeth and the cutting ends of the veneer and position the horizontal and vertical installation positions of the veneer relative to the teeth.

[0053] It is understood that in the above technical solution, this embodiment uses the positioning alveolar 1011 to position the veneer to the tooth, thereby assisting the doctor in finding the accurate position of the veneer on the corresponding tooth. Furthermore, the positioning alveolar 1011 is used to position the veneer installation position, making the veneer operation simpler and improving the success rate of veneers.

[0054] Continue reading Figure 1 The positioning part 101 also includes a guide plate positioning protrusion 1012 disposed between adjacent positioning alveoli 1011. The guide plate positioning protrusion 1012 connects the lingual part 102 and the labial part 103. Its shape and size match the incisal triangular gap of the tooth and is used to fit into the incisal triangular gap of the tooth.

[0055] Among them, the structural reference of the incisal edge of the tooth and the triangular gap at the incisal edge of the tooth. Figure 3 .

[0056] The positioning alveolar bone 1011 is integrated with the incisal edge of the tooth, the incisal edge of the veneer, and the adhesive filling the space between them. Specifically, the positioning alveolar bone 1011 includes a lingual alveolar wall 10111 near the lingual side, a labial alveolar wall 10112 near the labial side, and two alveolar walls 10113 oppositely arranged and connected between the lingual alveolar wall 10111 and the labial alveolar wall 10112. The lingual alveolar wall 10111 abuts against the lingual surface of the incisal edge of the tooth, and the labial alveolar wall 10111 abuts against the labial surface of the incisal edge of the veneer. This is equivalent to the labial part 103 abutting against the labial surface of the incisal edge of the veneer. This can limit the vertical distance between the incisal edge of the veneer and the labial surface of the tooth. The two adjacent alveolar walls 10113 on the two adjacent positioning alveolar bones 1011 form a guide plate positioning protrusion 1012. The left and right sides of the incisal edge of the tooth and the left and right sides of the incisal edge of the veneer abut against the alveolar walls 10113 respectively.

[0057] The horizontal mounting position of the veneer relative to the tooth refers to the mounting position of the veneer on the labial surface of the tooth, ignoring the adhesive. Specifically, in conjunction with... Figure 2 As can be seen from the XYZ coordinate axes, the horizontal installation position of the veneer relative to the tooth in the figure refers to the installation position of the veneer in the two dimensions of the Y-axis and Z-axis.

[0058] The vertical mounting position of the veneer relative to the tooth refers to its position relative to the labial surface of the tooth in a direction perpendicular to the labial surface. Since adhesive fills the space between the veneer and the labial surface, there is a certain gap between them, and the vertical mounting position is determined by the size of this gap. Specifically, combined with... Figure 2 As can be seen from the XYZ coordinate axes, the vertical mounting position of the veneer relative to the tooth refers to the mounting position of the veneer on the X-axis dimension.

[0059] Further reading Figure 1 All positioning alveoli 1011 are vertically continuous structures, and excess adhesive can be discharged from the crown end of the positioning alveoli 1011.

[0060] To facilitate doctors' observation of the veneer's adhesion, this embodiment also includes the following feature: an observation window 1031 is provided on the labial side 103, which is connected to the positioning alveolar 1011.

[0061] It should be noted that the leftmost and rightmost positioning sockets 1011 are used to position the molars. Therefore, the volume of these two positioning sockets 1011 is larger than that of the other positioning sockets 1011. Since molars are usually not fitted with veneers, these two positioning sockets do not have corresponding observation windows 1031.

[0062] In addition, several guide plate connecting parts are provided on the outer side of the guide plate body 101 for connecting with the auxiliary positioning plate 2. The specific structure of the guide plate connecting parts is described in Embodiment 2.

[0063] Example 2

[0064] Please see Figure 3 , Figure 4 and Figure 5 An auxiliary positioning plate for use in conjunction with the veneer bonding guide plate described above can also be produced by injection molding or 3D printing. It includes a positioning plate body 201, which is worn on the tooth and located at the root end of the veneer bonding guide plate 1. Its lingual side positions the veneer at the vertical mounting position relative to the tooth.

[0065] Specifically, the lingual side of the positioning plate body 201 abuts against the labial surface of the veneer, which can limit the vertical distance between the veneer and the labial surface of the tooth. When in use, the positioning plate body 201 is positioned closer to the neck of the veneer, which is used to position the neck of the labial surface of the veneer. The labial side 103 of the veneer bonding guide is closer to the incision end of the veneer, which is used to position the incision end of the labial surface of the veneer.

[0066] The distance between the positioning plate body 201 and the lip side 103 can be adjusted as needed.

[0067] Continue reading Figure 3 The positioning plate body 201 has several neck positioning protrusions 202 arranged at intervals on the lingual side. The shape and size of the neck positioning protrusions 202 match the triangular gap at the neck of the tooth and are used to fit into the triangular gap at the neck of the tooth. The fitting of the neck positioning protrusions 202 into the triangular gap at the neck of the tooth realizes the positioning of the auxiliary positioning plate 1 and the tooth in the left and right directions.

[0068] Among them, the triangular gap structure of the tooth neck is referenced. Figure 4 .

[0069] Furthermore, a number of positioning plate connecting parts are arranged at intervals on the positioning plate body 201. The positioning plate connecting parts are connected to the guide plate connecting parts of the adhesive guide plate 1, so that the adhesive guide plate 1 and the auxiliary positioning plate 2 form a whole.

[0070] In this embodiment, the positioning plate connecting part is a snap fastener 203, one end of which has a plug 2031. The maximum cross-sectional area of ​​the plug 2031 is larger than the maximum cross-sectional area of ​​the snap fastener 203 body. The guide plate connecting part is a slot 1032, with the slot opening facing the lip side. The body of the snap fastener 203 is inserted into the slot 1032 through the slot opening. The snap fastener 203 can adjust its installation position on the slot 1032 in the vertical direction. In this way, the distance between the auxiliary positioning plate 2 and the veneer bonding guide plate 1 can be adjusted. The plug 2031 of the snap fastener 203 is located at the crown end of the slot 1032. When the positioning plate body 201 is at the position with the largest distance from the guide plate body, the plug 2031 is in contact with the crown end of the slot 1032, and the plug 2031 can prevent the auxiliary positioning plate 2 from accidentally falling off. Alternatively, the positioning plate connecting part can be set as a slot 1032, and the guide plate connecting part can be set as a snap fastener 203.

[0071] In addition, the connection between the veneer bonding guide plate 1 and the auxiliary positioning plate 2 can also adopt the connection method between the second guide plate and the first guide plate in patent CN216933522U.

[0072] The process of using the veneer bonding guide plate 1 and the auxiliary positioning plate 2:

[0073] First, apply adhesive to the veneer and / or the labial surface of the tooth. Then, attach the veneers one by one to the tooth. Next, place a veneer bonding guide (1) on the patient. Then, press the veneer towards the crown to position the incisal edge. At this point, some veneers corresponding to the cervical region of the tooth need to be adjusted by pressing. This adjustment serves two purposes: first, to find a suitable position for the veneer at the cervical region; and second, to squeeze out excess adhesive. Manually adjusting each veneer individually by the dentist is inefficient, and because the incisal edge position is already fixed, it's like the incisal edge has a fulcrum. Excessive pressure at this point could cause the veneer to break. Therefore, this invention proposes to use an auxiliary positioning plate 2 to press and adjust the corresponding part of the veneer and the neck of the tooth. Specifically, the auxiliary positioning plate 2 is placed on the patient's tooth. The auxiliary positioning plate 2 is engaged with the slot 1032 of the veneer bonding guide plate 1 by a buckle 203. The auxiliary positioning plate 2 is supported by the veneer bonding guide plate 1. The neck positioning protrusion 202 of the auxiliary positioning plate 2 fits into the triangular gap of the neck of the tooth. The auxiliary positioning plate 2 plays the role of positioning the neck of the veneer. During operation, only a slight press on the auxiliary positioning plate 2 is needed to press all the veneers. Excess adhesive flows away from the overflow port. All the veneers are stressed together, which can prevent the veneers from breaking. Finally, the veneers are cured.

[0074] It should be noted that the above-mentioned auxiliary positioning plate 2 can also be worn directly on the teeth without being connected to the veneer bonding guide plate 1. In this case, the doctor needs to apply moderate pressure to the auxiliary positioning plate to prevent it from falling off.

[0075] Example 3

[0076] Please see Figure 6 and Figure 7 A pressing tool for bonding a veneer includes a pressing head 601, an elastic element 602, and a housing assembly 603. The pressing head 601 is slidably engaged with the housing assembly 603, and its front end abuts against the veneer to provide pressing force to the veneer. The elastic element 602 is disposed on the housing assembly 603 to provide elastic force to the pressing head 601.

[0077] It is understood that in the above technical solution, this embodiment includes structures such as a pressing head 601, a housing assembly 603, and an elastic element 602. The pressing head 601 can press the patch, and the elastic element 602 enables the doctor to have more controllable, accurate, and stable pressure on the patch, reducing the risk of misoperation, thereby achieving the following objectives:

[0078] 1) The veneer will not crack due to excessive pressure;

[0079] 2) Excessive pressure will not cause excessive adhesive overflow, creating cavities in the adhesive space and affecting the color and bonding effect;

[0080] 3) The veneer will not float on the tooth surface due to insufficient pressure, which may cause it to fall off later.

[0081] Furthermore, the pressing head 601 is a miniature vibrator, preferably a rod-shaped structure, but other shapes can also be used. A switch 604 and a power module 605 are provided on the housing assembly 603. The miniature vibrator, the power module 605 and the switch 604 are electrically connected in sequence through wires. The switch 604 controls the operation of the miniature vibrator, and the power module 605 supplies power to the miniature vibrator.

[0082] The micro-vibrator makes the adhesive on the veneer more even, enhancing the bonding effect. Specifically, when the micro-vibrator is pressed onto the veneer, the vibration spreads the adhesive between the veneer and the teeth more evenly. Switch 604 controls the micro-vibrator to start and stop. In some embodiments, switch 604 can also have multiple settings to control the vibration frequency and amplitude of the micro-vibrator.

[0083] Continue reading Figure 7 The housing assembly 603 includes a front housing 6032, a middle housing 6033 and an end cap 6034 that are detachably connected from front to back. The detachable connection of the three can be achieved by means of interference fit, threaded connection or other methods.

[0084] The front end of the front housing 6032 has a sliding hole that connects to the outside. The pressing head 601 slides and extends into the sliding hole of the front housing 6032. The front end of the pressing head 601 can extend out of the sliding hole of the front housing 6032, and the extended part is used to abut against the surface.

[0085] Slide rods 6011 are provided on both sides of the pressing head 601. The structure of the slide rods 6011 is not limited to rod shape, but can also be block shape, etc. Windows 6031 connecting to the outside are opened on both sides of the front shell 6032. The slide rods 6011 are slidably connected to the corresponding windows 6031. When the pressing head 601 slides, the doctor can see the slide rods 6011 sliding on the windows 6031 from the outside. The position of the slide rods 6011 on the windows 6031 can be used to judge the magnitude of the pressing force.

[0086] In some embodiments, a scale can be set on the window 6031, which makes it easier for doctors to control the pressure level. Alternatively, a scale can be set on the pressure head 601, which also makes it easier for doctors to control the pressure level.

[0087] A partition 60331 is provided in the middle of the shell 6033, and a spring seat 60332 is provided on the front side of the partition 60331. The partition 60331 divides the inner cavity of the shell assembly 603 into two parts: the front part is used to accommodate the elastic element 602 and the pressing head 601, and the rear part is used to accommodate the power module 605. A through hole is provided on the partition 60331 for the power supply wire to pass through. The elastic element 602 is preferably a spring, with one end of the spring connected to the spring seat 60332 and the other end connected to the pressing head 601.

[0088] In some embodiments, the elastic element 602 may also be a structure such as a spring sheet.

[0089] The switch 604 is mounted on the end cover 6034, with the rear end of the switch 604 protruding from the end cover 6034 for operation.

[0090] The procedure for pressing the patch using this embodiment is as follows: The doctor holds the housing assembly 603 and aligns the pressing head 601 with the patch for vertical pressing. The doctor can press while observing the position of the slider 6011 on the window 6031 in order to adjust the force and keep the pressing pressure within a suitable range.

[0091] This embodiment can be used alone or in conjunction with Embodiments 1 and 2. When used in conjunction with Embodiments 1 and 2, first apply adhesive to the veneer and / or the labial surface of the tooth, then apply the veneer to the tooth one by one, and then use the pressing tool 6 to press the veneer to squeeze out the adhesive, remove bubbles, and make the adhesive more even. Next, put on the veneer bonding guide plate 1, and then use the pressing tool 6 to press the veneer further to make the veneer as in place as possible. After that, put on the auxiliary positioning plate 2, and finally carry out the curing of the veneer.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An auxiliary positioning plate used in conjunction with a veneer bonding guide plate, characterized in that, The veneer bonding guide plate includes a guide plate body, which includes a positioning part (101), a lingual part (102) disposed on the lingual side of the positioning part (101), and a labial part (103) disposed on the labial side of the positioning part (101). The positioning part (101) includes a plurality of positioning alveoli (1011), which position the teeth and the cutting ends of the veneer and position the veneer relative to the teeth. The auxiliary positioning plate includes a positioning plate body (201), which is worn on the teeth and located at the root end of the veneer bonding guide plate (1). Its lingual side positions the veneer at the vertical installation position relative to the teeth. Several neck positioning protrusions (202) are arranged at intervals on the lingual side of the positioning plate body (201). The neck positioning protrusions (202) fit into the triangular gap at the neck of the teeth. The positioning plate body (201) is provided with a positioning plate connecting part, and the guide plate body is provided with a guide plate connecting part. The positioning plate connecting part and the guide plate connecting part are detachably connected.

2. The auxiliary positioning plate for use in conjunction with a veneer bonding guide plate according to claim 1, characterized in that, The positioning part (101) further includes a guide plate positioning protrusion (1012) disposed between adjacent positioning alveoli (1011), the guide plate positioning protrusion (1012) being engaged with the triangular gap at the incisal edge of the tooth.

3. The auxiliary positioning plate for use in conjunction with a veneer bonding guide plate according to claim 2, characterized in that, The positioning alveolar (1011) includes a lingual alveolar wall (10111) near the lingual side, a labial alveolar wall (10112) near the labial side, and two alveolar walls (10113) opposite to each other and connected between the lingual alveolar wall (10111) and the labial alveolar wall (10112). The lingual alveolar wall (10111) abuts against the lingual surface of the incisal edge of the tooth, and the labial alveolar wall (10112) abuts against the labial surface of the incisal edge of the veneer. The two adjacent alveolar walls (10113) on two adjacent positioning alveolar (10111) form a guide plate positioning protrusion (1012).

4. The auxiliary positioning plate for use in conjunction with a veneer bonding guide plate according to claim 1, characterized in that, The positioning alveolar (1011) is partially or completely a through structure, and excess adhesive can be discharged from the crown end of the positioning alveolar (1011).

5. An auxiliary positioning plate for use in conjunction with a veneer bonding guide plate according to claim 1, characterized in that, The labial portion (103) has an observation window (1031) that connects to the positioning alveolar bone (1011).

6. An auxiliary positioning plate for use in conjunction with a veneer bonding guide plate according to any one of claims 1-5, characterized in that, One of the positioning plate connecting part and the guide plate connecting part is a buckle (203) and the other is a slot (1032), and the buckle (203) engages with the slot (1032).

7. An auxiliary positioning plate for use in conjunction with a veneer bonding guide plate according to claim 6, characterized in that, The buckle (203) can be adjusted in the vertical direction to adjust its installation position on the slot (1032) to achieve the adjustment of the distance between the positioning plate body (201) and the guide plate body.

8. An auxiliary positioning plate for use in conjunction with a veneer bonding guide plate according to claim 7, characterized in that, The slot (1032) faces the lip side, and the main body of the buckle (203) is inserted into the slot (1032) through the slot. A plug (2031) is provided at one end of the buckle (203). When the positioning plate body (201) is at the position with the largest distance from the guide plate body, the plug (2031) is in contact with the crown end of the slot (1032).

Images