Auxiliary device for dental veneer bonding and dental veneer bonding method

Abstract

The present invention discloses an auxiliary device for bonding dental veneers and a method for bonding dental veneers, relating to the technical field of tooth whitening and restoration. The device comprises a trough body and a curable adhesive. The trough body is used to cover the crown of a tooth row, and a gap exists between the inner surface of the trough body and the surface of the crown with the veneer corresponding to the inner surface of the trough body. The adhesive is used to fill the gap between the inner surface of the trough body and the surface of the crown with the veneer and can cure to form an elastic adhesive layer. The auxiliary device for bonding dental veneers and the method for bonding dental veneers provided by the present invention can simultaneously bond multiple veneers to a tooth surface, are easy and quick to operate, each veneer is accurately positioned, and can prevent veneer damage.

Description

Technical Field

[0001] The present invention relates to the technical field of tooth whitening and repairing, and in particular to an auxiliary device for tooth veneer bonding and a tooth veneer bonding method. Background Art

[0002] Dental veneers are a type of tooth whitening and restoration technique. They involve attaching a layer of material similar to normal tooth color to discolored or damaged teeth to achieve whitening or restoration effects. Due to their minimally invasive, aesthetically pleasing, and biocompatible properties, they have become a mainstream minimally invasive restoration technique for dental aesthetics. Veneer bonding is a critical step in ensuring veneer retention and marginal sealing, ultimately impacting the clinical lifespan of the restoration.

[0003] When bonding porcelain veneers, the doctor will first perform a trial fitting of the veneers to confirm that they are fully seated and the edges are tightly fitted, and then perform pretreatment of the veneers: 1. Etch the tissue surface with hydrofluoric acid for 20-120 seconds; 2. Ultrasonic cleaning (3-5 minutes) and air drying; 3. Apply silane coupling agent to the tissue surface (2-3 times); 4. Apply adhesive. After polishing, etching, rinsing and air drying the abutment tooth surface, apply resin cement to the abutment tooth surface and / or the porcelain veneer tissue surface, and place the veneer on the abutment tooth according to the direction of the insertion, light cure and remove excess resin cement, and finally adjust the surface. and polishing.

[0004] When bonding multiple veneers, one method is to bond each veneer one by one. The bonding process for each veneer includes trial fitting, porcelain surface treatment, abutment surface treatment, and veneer bonding, making the operation process complicated. Moreover, due to the shallow retention of veneer restorations, it is impossible to achieve precise positioning by relying solely on the doctor's clinical experience and hand feeling. When bonding the veneers, the overflow of resin cement will block the edges, making it difficult for the doctor to judge the positioning. When the existing technology uses a guide plate to bond multiple veneers at once, due to the differences in the positioning path of each veneer (that is, the trajectory of the tooth veneer worn to the surface of the tooth to be repaired), the veneers are prone to fracture due to stress concentration. In addition, the guide plates in the existing technology often use hard connections, such as the guide plate clamping the veneer, which makes stress more likely to concentrate, so veneer fractures often occur. Summary of the Invention

[0005] The purpose of the present invention is to provide an auxiliary device for bonding dental veneers and a method for bonding dental veneers to solve the problems existing in the above-mentioned prior art. It can bond multiple veneers to the tooth surface at the same time, and the operation is convenient and fast, each veneer is accurately positioned, and damage to the veneer can be avoided.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides an auxiliary device for bonding tooth veneers, comprising a groove body and a curable glue. The groove body is used to cover the tooth crown of the tooth row. There is a gap between the inner surface of the groove body and the surface of the tooth crown with the veneer corresponding to the inner surface of the groove body. The glue is used to fill the gap between the inner surface of the groove body and the surface of the tooth crown with the veneer and can be cured to form an elastic glue layer.

[0008] Preferably, the groove body includes a clamping groove body at both ends and a veneer bonding auxiliary groove body located between the clamping groove bodies at both ends. The clamping groove bodies at both ends are used to respectively cover and clamp on the crowns at both ends of the tooth row, and the veneer bonding auxiliary groove body is used to cover each tooth surface between the crowns at both ends.

[0009] Preferably, the veneer bonding auxiliary slot includes a labial side plate, a lingual side plate and an occlusal end bottom plate, the labial side plate and the lingual side plate are relatively arranged at the two ends of the occlusal end bottom plate, the labial side plate is the side plate opposite to the labial surface of the crown, the occlusal end bottom plate is the bottom plate opposite to the occlusal end of the crown, and the lingual side plate is the side plate opposite to the lingual surface of the crown. When the slot cover is arranged on the crown with a veneer, the gap between the labial side plate and the veneer on the labial surface of the crown is 0.3 to 4 mm.

[0010] Preferably, the range of the labial side plate covering the labial surface of the crown does not exceed the cervical margin line of the labial surface of the crown; the range of the lingual side plate covering the lingual surface of the crown does not exceed the cervical margin line of the lingual surface of the crown.

[0011] Preferably, the glue is liquid silicone rubber.

[0012] Preferably, the elastic colloid layer is a transparent elastic colloid layer, the trough body is a transparent trough body, and the wall thickness of the trough body is 0.3-4 mm.

[0013] Preferably, portions of the labial side plates corresponding to the labial surfaces of the tooth crowns are provided with through holes.

[0014] Preferably, the snap-fitting groove body includes a labial side clamp, a lingual side clamp and an occlusal end clamp, the labial side clamp and the lingual side clamp are relatively arranged at the two ends of the occlusal end clamp, and a tooth tip observation hole is provided at the intersection of the labial side clamp and the occlusal end clamp.

[0015] Preferably, the slot opening width of the snap-fit ​​slot body is smaller than the slot bottom width.

[0016] The present invention also provides a method for bonding a tooth veneer based on the auxiliary device for bonding a tooth veneer, comprising the following steps:

[0017] S1: Accurately try in and maintain the veneer on the abutment tooth;

[0018] S2: placing the groove cover on the crown of the tooth row consisting of the abutment tooth and the adjacent teeth on both sides of the abutment tooth;

[0019] S3: filling the gap between the inner surface of the slot and the surface of the crown with glue, and solidifying it to form the elastic glue layer;

[0020] S4: The tank body is removed, and the veneer is bonded to the elastic colloid layer and removed together with the tank body;

[0021] S5: After the uniform pretreatment of the veneers in the socket and the surface treatment of the abutment teeth are completed, an adhesive is applied to the tooth surface of the abutment teeth and / or the veneer tissue surface, and then a resin cement is applied to the tooth surface of the abutment teeth and / or the veneer tissue surface, and then the socket is re-covered on the crown, keeping the same covering position as in step S2;

[0022] S6: Under the elastic action of the elastic colloid layer, the veneer is tightly attached to the surface of the abutment tooth. After the resin cement has overflowed, the veneer is light-cured, and then the groove is removed. The veneer is accurately bonded to the tooth surface.

[0023] Compared with the prior art, the present invention has achieved the following technical effects:

[0024] The auxiliary device and method for bonding dental veneers provided by the present invention are as follows: when performing dental veneers, each veneer is accurately tried in the mouth and does not need to be removed after the trial wearing; the slot body is covered on the crown of the tooth row; glue is filled in the gap between the inner surface of the slot body and the surface of the crown; the glue is cured to form an elastic colloid layer; the slot body is removed; at this time, each veneer has been adhered to the elastic colloid layer; the elastic colloid layer is adhered to the inner wall of the slot; the slot body is held, and after the uniform pretreatment of the veneer and the surface treatment of the abutment tooth are completed, the adhesive is applied to the tooth surface of the abutment tooth and / or the veneer tissue surface; then resin cement is applied to the tooth surface of the abutment tooth and / or the veneer tissue surface; then the slot body is re-covered on the crown, keeping the same position as before; under the elastic action of the elastic colloid layer, each veneer is tightly adhered to the tooth surface; after the resin cement has completely overflowed, light curing treatment is performed; the slot body is removed, and each veneer is accurately adhered to the tooth surface. By using a slot body combined with a curable glue, all veneers that have been accurately put on in advance can be adhered to the elastic colloid layer, and the position of each veneer can be accurately positioned. Multiple veneers can be pre-treated uniformly at the same time, and the operation is convenient and quick. Moreover, after applying the adhesive and resin cement, the slot body is re-covered on the crown to keep it consistent with the previous position, thereby ensuring the accuracy of the bonding position of each veneer. The elastic colloid layer elastically squeezes each veneer and will not produce stress concentration on each veneer, thereby avoiding damage to the veneer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of the three-dimensional structure of the auxiliary device for bonding dental veneers provided by the present invention;

[0027] Figure 2 A schematic diagram of the three-dimensional structure of the auxiliary device for bonding dental veneers provided by the present invention in use;

[0028] In the figure: 100 - auxiliary device for bonding dental veneers, 1 - slot body, 2 - clamping slot body, 3 - veneer bonding auxiliary slot body, 4 - labial side plate, 5 - lingual side plate, 6 - occlusal end base plate, 7 - labial surface of crown, 8 - lingual surface of crown, 9 - through hole, 10 - labial clamping plate, 11 - lingual clamping plate, 12 - occlusal end clamping plate, 13 - cusp observation hole. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] The purpose of the present invention is to provide an auxiliary device for bonding dental veneers and a dental veneer bonding method to solve the problems existing in the prior art. Multiple veneers can be bonded to the tooth surface at the same time, and the operation is convenient and fast, each veneer is accurately positioned, and damage to the veneer can be avoided.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figures 1-2 As shown, this embodiment provides an auxiliary device 100 for bonding dental veneers, including a slot body 1 and a curable glue. The slot body 1 is used to cover the crown of the tooth row. There is a gap between the inner surface of the slot body 1 and the surface of the crown with the veneer corresponding to the inner surface of the slot body 1. The glue is used to fill the gap between the inner surface of the slot body 1 and the surface of the crown with the veneer and can be cured to form an elastic glue layer.

[0033] When performing dental veneers, each veneer is accurately tried on the abutment tooth to be veneered. After the trial wearing, there is no need to remove it. The slot body 1 is placed on the crown of the tooth row composed of the abutment tooth and the adjacent teeth on both sides of the abutment tooth. The slot body 1 is a curved slot that is consistent with the direction of the tooth arrangement. It can be placed on the tooth row composed of multiple teeth on the upper or lower jaw. The glue is filled in the gap between the inner surface of the slot body 1 and the surface of the crown. After the glue solidifies to form an elastic colloid layer, the slot body 1 is removed. At this time, each veneer has been adhered to the elastic colloid layer. The elastic colloid The layer is bonded to the inner wall of the slot body 1. Hold the slot body 1 and complete the unified pretreatment of the veneer and the surface treatment of the abutment tooth. Then, apply the adhesive to the abutment tooth surface and / or the veneer tissue surface. Then, apply the resin cement on the abutment tooth surface and / or the veneer tissue surface. Then, cover the slot body 1 on the crown again, keeping it consistent with the previous position. Under the elastic action of the elastic colloid layer, each veneer is tightly attached to the tooth surface. After the resin cement has overflowed, perform light curing treatment, remove the slot body 1, and each veneer is accurately bonded to the tooth surface. Among them, when the veneer is bonded to the elastic colloid layer, the adhesive force of the elastic colloid layer can ensure that the veneer will not fall off when the veneer is pre-treated, and the veneer will not fall off when it is covered on the crown. At the same time, after the veneer is bonded to the tooth surface with adhesive and resin cement, when the slot body 1 is removed, the veneer can be smoothly removed from the elastic colloid layer under the action of the adhesive and resin cement. The device adopts the slot body 1 combined with the curable glue to bond all the veneers that have been accurately put on in advance to the elastic colloid layer, accurately locate the position of each veneer, and can pre-treat multiple veneers at the same time. The operation is convenient and fast. Moreover, after applying the adhesive and resin cement, the slot body 1 is re-covered on the crown to keep it consistent with the previous position, thereby ensuring the accuracy of the bonding position of each veneer. The elastic colloid layer elastically squeezes each veneer and will not produce stress concentration on each veneer, thereby avoiding damage to the veneer.

[0034] In this embodiment, the trough 1 includes two clamping troughs 2 at either end and an auxiliary veneer bonding trough 3 located between the two clamping troughs 2. The clamping troughs 2 at either end are respectively mounted and clamped onto the crowns at either end of the dentition, while the auxiliary veneer bonding trough 3 is mounted on each tooth surface between the crowns. The clamping structure used to install the trough 1 makes assembly and disassembly quick and easy.

[0035] In this embodiment, the veneer bonding auxiliary slot 3 includes a labial side plate 4, a lingual side plate 5 and an occlusal end bottom plate 6. The labial side plate 4 and the lingual side plate 5 are relatively arranged at the two ends of the occlusal end bottom plate 6. The labial side plate 4 is the side plate opposite to the labial surface 7 of the crown, the lingual side plate 5 is the side plate opposite to the lingual surface 8 of the crown, and the occlusal end bottom plate 6 is the bottom plate opposite to the occlusal end of the crown. When the slot 1 is covered on the crown with a veneer, the gap between the labial side plate 4 and the veneer on the labial surface of the crown is 0.3 to 4 mm, preferably 1.5 mm, so that the thickness of the elastic colloid layer is moderate, and the elastic range is not too small due to the thickness being too thin, thereby avoiding stress concentration caused by too small an elastic range, and there will be no situation where the extrusion force on the veneer is insufficient due to the elastic range being too large, resulting in the veneer and the tooth surface not being tightly bonded. Among them, the occlusal end of the anterior tooth crown refers to the incisal end of the upper and lower front teeth that can bite things, that is, the incisal edge, and the occlusal end of the posterior tooth crown refers to the end of the upper and lower posterior teeth that is opposite and used to chew food.

[0036] In this embodiment, the range of the labial side plate 4 covering the labial surface 7 of the crown does not exceed the cervical edge line of the labial surface of the crown, and preferably does not exceed 2 / 3 of the height of the labial surface of the crown, so that the resin cement can overflow from the uncovered veneer edge; the range of the lingual side plate 5 covering the lingual surface 8 of the crown does not exceed the cervical edge line of the lingual surface of the crown, and preferably does not exceed 2 / 3 of the height of the lingual surface of the crown, so that after the filling glue is cured, the slot body 1 is more stable after being covered on the crown.

[0037] In this embodiment, the glue is liquid silicone rubber, which is odorless, non-toxic, stable in performance, and can play a certain bonding role on the veneer. The glue is not limited to liquid silicone rubber, and other adhesive and curable liquids similar to liquid silicone rubber are also within the scope of protection of the present invention.

[0038] In this embodiment, the elastic colloid layer is a transparent elastic colloid layer, and the trough body 1 is a transparent trough body. The transparent elastic colloid layer is obtained after the liquid silicone rubber is cured, which is convenient for observation operation. The wall thickness of the trough body 1 is 0.3~4mm, preferably 1.5mm, to ensure the strength of the trough body and avoid the trough body from breaking during operation.

[0039] In this embodiment, the portions of the labial side plates 4 corresponding to the labial surfaces 7 of the crowns are provided with through holes 9. When the glue is filled into the gap between the inner surface of the slot body 1 and the surface of the crowns, the glue enters the through holes 9. After solidification, the elastic colloid layer is more firmly connected to the slot body 1.

[0040] In this embodiment, the clamping slot body 2 includes a labial clamping plate 10, a lingual clamping plate 11, and an occlusal clamping plate 12. The labial clamping plate 10 and the lingual clamping plate 11 are arranged at opposite ends of the occlusal clamping plate 12. A tooth cusp observation hole 13 is provided at the intersection of the labial clamping plate 10 and the occlusal clamping plate 12. When the clamping slot body 2 is clamped onto the adjacent teeth at both ends of the abutment to be veneered, the tooth cusp observation hole 13 facilitates observation of the relative position of the adjacent teeth and the clamping slot body 2, so that the labial clamping plate 10 and the occlusal clamping plate 12 are in contact with the tooth surface of the adjacent teeth, thereby ensuring consistency in the installation position of the slot body 1 before and after installation and ensuring accurate veneer contact.

[0041] In this embodiment, the slot width of the engaging slot body 2 is smaller than the slot bottom width. Taking advantage of the characteristic of a tooth crown being wide at the top and narrow at the bottom, the engaging slot body 2 is configured as a slotted structure corresponding to the tooth crown, so that the slot width is smaller than the slot bottom width. This facilitates the engaging slot body 2 to be mounted on the tooth crown and to be removed. However, the slot width and slot bottom width of the engaging slot body 2 are not limited to the above, and the slot width can also be set to be greater than or equal to the slot bottom width according to actual needs.

[0042] A method for bonding a dental veneer based on the auxiliary device 100 for bonding a dental veneer in the first embodiment includes the following steps:

[0043] S1: Accurately try in and maintain the veneer on the abutment tooth;

[0044] S2: The slot body 1 is placed on the crown of the tooth row consisting of the abutment tooth and the adjacent teeth on both sides of the abutment tooth;

[0045] S3: Filling the gap between the inner surface of the slot 1 and the surface of the crown with glue, and solidifying it to form an elastic glue layer;

[0046] S4: The tank body 1 is removed, and the veneer is bonded to the elastic colloid layer and removed together with the tank body 1;

[0047] S5: After the uniform pretreatment of the veneers in the socket body 1 and the surface treatment of the abutment teeth are completed, an adhesive is applied to the tooth surface of the abutment teeth and / or the veneer tissue surface, and then a resin cement is applied to the tooth surface of the abutment teeth and / or the veneer tissue surface, and then the socket body 1 is re-covered on the crown, keeping the same covering position as in step S2;

[0048] S6: Under the elastic action of the elastic colloid layer, the veneer is tightly attached to the surface of the abutment tooth. After the resin cement has overflowed, the veneer is light-cured, and then the socket 1 is removed. The veneer is accurately bonded to the tooth surface.

[0049] After light curing, the bonding force between the veneer and the abutment tooth surface is greater than the bonding force between the veneer and the elastic colloid layer, thereby ensuring that the veneer can be bonded to the abutment tooth surface when the slot body 1 is removed.

[0050] This method uses a slot body combined with a curable glue liquid, which can adhere all veneers that have been accurately put on in advance to the elastic colloid layer, accurately locate the position of each veneer, and can pre-treat multiple veneers at the same time. The operation is convenient and quick. Moreover, after applying the adhesive and resin cement, the slot body is re-covered on the crown to keep it consistent with the previous position, thereby ensuring the accuracy of the bonding position of each veneer. The elastic colloid layer elastically squeezes each veneer and will not produce stress concentration on each veneer, thereby avoiding damage to the veneer.

[0051] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. An auxiliary device for bonding dental veneers, characterized in that: The invention comprises a groove body and a curable glue, wherein the groove body is used to cover the tooth crown of the tooth row, and a gap exists between the inner surface of the groove body and the surface of the tooth crown with the veneer corresponding to the inner surface of the groove body. The glue is used to fill the gap between the inner surface of the groove body and the surface of the tooth crown with the veneer and can be cured to form an elastic glue layer; The slot body includes a clamping slot body at both ends and a veneer bonding auxiliary slot body located between the clamping slot bodies at both ends. The clamping slot bodies at both ends are used to cover and clamp the crowns at both ends of the tooth row respectively, and the veneer bonding auxiliary slot body is used to cover each tooth surface between the crowns at both ends. The veneer bonding auxiliary slot includes a labial side plate, a lingual side plate and an occlusal end bottom plate, the labial side plate and the lingual side plate are arranged at the two ends of the occlusal end bottom plate opposite to each other, the labial side plate is the side plate opposite to the labial surface of the tooth crown, the lingual side plate is the side plate opposite to the lingual surface of the tooth crown, and the occlusal end bottom plate is the bottom plate opposite to the occlusal end of the tooth crown, and the portions of the labial side plates corresponding to the labial surfaces of each tooth crown are provided with through holes; The clamping slot body includes a labial clamping plate, a lingual clamping plate and an occlusal end clamping plate. The labial clamping plate and the lingual clamping plate are relatively arranged at the two ends of the occlusal end clamping plate. A tooth tip observation hole is provided at the intersection of the labial clamping plate and the occlusal end clamping plate.

2. The auxiliary device for bonding dental veneers according to claim 1, characterized in that: When the slot cover is arranged on a dental crown with a veneer, the gap between the labial side plate and the veneer on the labial surface of the dental crown is 0.3 to 4 mm.

3. The auxiliary device for bonding dental veneers according to claim 1, characterized in that: The range of the labial side plate covering the labial surface of the crown does not exceed the cervical edge line of the labial surface of the crown; the range of the lingual side plate covering the lingual surface of the crown does not exceed the cervical edge line of the lingual surface of the crown.

4. The auxiliary device for bonding dental veneers according to claim 1, characterized in that: The glue is liquid silicone rubber.

5. The auxiliary device for bonding dental veneers according to claim 1, characterized in that: The elastic colloid layer is a transparent elastic colloid layer, the trough body is a transparent trough body, and the wall thickness of the trough body is 0.3-4 mm.

6. The auxiliary device for bonding dental veneers according to claim 1, characterized in that: The slot opening width of the clamping slot body is smaller than the slot bottom width.

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