A preformed resin restoration for dental restoration and method of use thereof

Abstract

This invention provides a preformed resin restorative sheet for dental restoration and its method of use, relating to the field of dental restoration sheet technology. The sheet comprises: a sheet made of dental restoration resin; a first end of the sheet being a gingival end; a second end opposite to the first end being an incisal end; a third end of the sheet being a labial end; and a fourth end opposite to the third end being a lingual end. The gingival end conforms to the shape of the gingiva. The incisal end is provided with a clamping portion. One side of the sheet is concave and forms a filling cavity with the tooth to be restored, the filling cavity being filled with dental restoration resin. The other side of the sheet is convex and serves as the proximal wall of the tooth to be restored. The sheet and the filled dental restoration resin form an integral restoration. This invention solves the problem that in the prior art, preformed sheets are used as molds or tools, resulting in poor performance in dental restoration and cumbersome clinical procedures.

Description

Technical Field

[0001] This invention belongs to the field of dental restoration technology, and more specifically, relates to a preformed resin restoration sheet for dental restoration and its method of use. Background Technology

[0002] Direct resin restoration of anterior tooth diastema and black triangles is a common challenge in aesthetic dental restoration. Current mainstream clinical techniques suffer from two major drawbacks: difficulty in morphological control and cumbersome procedures.

[0003] Traditional prefabricated matrix systems, such as the Bioclear matrix and existing corrugated thermoplastic sheets, are essentially "molds" that need to be removed after resin filling, serving only a temporary shaping function. Prefabricated resin veneers, such as Edelweiss veneers, require bonding with resin cement, representing an indirect restoration and failing to achieve the integrated effect of direct filling. When removing traditional matrices, including thermoplastic sheets, incompletely cured resin is easily carried out, compromising marginal seal and leading to microleakage and secondary caries. After removal, the proximal morphology is often unsatisfactory, requiring doctors to spend considerable time on secondary reshaping and polishing, a time-consuming and experience-dependent procedure. Existing prefabricated sheets are all "tools" and cannot be retained as the main body of the restoration, resulting in cumbersome clinical procedures. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a preformed resin restorative sheet for dental restoration and its application method, thereby solving the problem that existing preformed sheets are used as molds or tools, resulting in poor performance in dental restoration and cumbersome clinical procedures.

[0005] To achieve the above objectives, the present invention provides a preformed resin restorative sheet for dental restoration, comprising: The sheet is made of dental restorative resin. The first end of the sheet is the gingival end, the second end opposite the first end is the incisal end, the third end of the sheet is the labial end, and the fourth end opposite the third end is the lingual end. The gingival end is used to conform to the shape of the gingiva. The incisal end is provided with a clamping part extending away from the gingival end. One side of the sheet is concave and is used to form a filling cavity with the tooth to be restored. The filling cavity is used to fill the dental restorative resin. The other side of the sheet is convex and serves as the proximal wall of the tooth to be restored. The sheet and the filled dental restorative resin form an integral restoration.

[0006] Optionally, the gingival tip is configured as a concave curve that conforms to the gingival margin.

[0007] Optionally, the clamping portion is configured to taper from the gingival tip to the incisal tip and bend toward the tooth being restored.

[0008] Optionally, the lip tip is configured as a curve that slopes from the lip side toward the tongue side.

[0009] Optionally, the tongue tip is configured as a curved shape that slopes from the labial side toward the lingual side, and the width of the cut tip is smaller than the width of the gingival tip.

[0010] Optionally, the dental restorative resin is a light-cured composite resin.

[0011] Optionally, the edge of the gingival tip is thinned and rounded.

[0012] Optionally, the clamping part is integrally formed on the cut end.

[0013] Optionally, the concave surface is provided with an adhesive layer for bonding with dental restorative resin.

[0014] The present invention also provides a method of using a preformed resin restorative sheet for dental restoration, comprising: Apply rubber dam, acid etch the tooth structure, and apply adhesive; The pre-formed resin restoration piece for dental restoration described above is placed in the gap between the teeth to be restored by clamping the clamping part. Fill the cavity with dental restorative resin; Light curing allows the sheet material to form an integral restoration with the filling dental resin. Grind away the clamping part and trim the one-piece restoration.

[0015] This invention provides a preformed resin restorative sheet for dental restoration and its method of use. Its advantages are as follows: The preformed resin restorative sheet for dental restoration is made of dental restorative resin, and the structure and shape of the sheet are designed. The sheet has four opposing ends and two opposing sides. When the sheet is placed into the interdental space, the gingival end is used to conform to the shape of the gingiva, and the clamping part of the incisal end is used to be clamped by a clamping tool for easy insertion. The concave surface of the sheet faces the tooth being restored, forming a filling cavity between it and the tooth. After the dental restorative resin fills the filling cavity, it can combine with the sheet to form an integrated restoration. As part of the restoration, the convex surface of the sheet forms the proximal wall of the tooth being restored. Therefore, there is no need to remove the sheet after restoration, and no extra steps are required. Only the clamping part needs to be ground down and the integrated restoration needs to be trimmed. The trimming difficulty is low, and the restoration effect is good.

[0016] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] The above and other objects, features and advantages of the present invention will become more apparent from the more detailed description of exemplary embodiments of the invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the invention.

[0018] Figure 1 A frontal structural schematic diagram of a preformed resin restorative sheet for dental restoration according to an embodiment of the present invention is shown.

[0019] Figure 2 A side view of a preformed resin restorative sheet for dental restoration according to an embodiment of the present invention is shown.

[0020] Figure 3 A schematic diagram of the working state of a preformed resin restorative sheet for dental restoration according to an embodiment of the present invention is shown.

[0021] Figure 4 A flowchart illustrating a method of using a preformed resin restorative sheet for dental restoration according to an embodiment of the present invention is shown.

[0022] Explanation of reference numerals in the attached figures: 1. Gingival tip; 2. Incisional tip; 3. Labial tip; 4. Lingual tip; 5. Clamping part; 6. Concave surface; 7. Convex surface; 8. Filling cavity. Detailed Implementation

[0023] Preferred embodiments of the invention will now be described in more detail. While preferred embodiments of the invention are described below, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0024] like Figure 1 and Figure 2 As shown, the present invention provides a preformed resin restorative sheet for dental restoration, comprising: The sheet is made of dental restorative resin. The first end of the sheet is the gingival end 1, the second end opposite to the first end is the incisal end 2, the third end of the sheet is the labial end 3, and the fourth end opposite to the third end is the lingual end 4. The gingival end 1 is used to conform to the shape of the gingiva. The incisal end 2 is provided with a clamping part 5 extending away from the gingival end 1. One side of the sheet is a concave surface 6, which is used to form a filling cavity 8 between the sheet and the tooth being restored. The filling cavity 8 is used to fill the dental restorative resin. The other side of the sheet is a convex surface 7, which serves as the proximal wall of the tooth being restored. The sheet and the filled dental restorative resin form an integral restoration.

[0025] Specifically, to address the problem that existing pre-formed sheets are used as molds or tools, resulting in poor performance in dental restorations and cumbersome clinical procedures, this invention provides a pre-formed resin restorative sheet for dental restorations. The sheet is made of dental restorative resin and its structure and shape are designed. The sheet consists of four opposing ends and two opposing sides. When the sheet is inserted into the interdental space, the gingival end 1 conforms to the shape of the gingiva, and the clamping portion 5 of the incisal end 2 is used for clamping by a clamping tool, facilitating the insertion of the sheet. Figure 3 As shown, the concave surface 6 of the sheet faces the tooth to be restored and forms a filling cavity 8 between it and the tooth. After the dental restoration resin is filled into the filling cavity 8, it can combine with the sheet to form an integrated restoration. The sheet is part of the restoration, and the convex surface 7 of the sheet forms the proximal wall of the tooth to be restored. Therefore, there is no need to remove the sheet after restoration, and no extra operation steps are required. It is only necessary to grind down the clamping part 5 and trim the integrated restoration. The trimming difficulty is low and the restoration effect is good.

[0026] In this embodiment, the proximal wall and the adjacent tooth form the most convex part of the convex surface at the incisal third position near the incisal edge, thereby forming the proximal contact area. From the proximal contact area towards the incisal edge and the gingival edge, the surface layer has a gentle converging trend.

[0027] Optionally, the gingival tip 1 is configured as a concave curve that conforms to the gingival margin.

[0028] Specifically, the gingival margin of gingival tip 1 has a V-shaped indentation (neck curve) to avoid compressing the gingival papilla and to form a natural gingival margin shape.

[0029] Optionally, the clamping part 5 is configured to taper from the gingival end 1 to the incisal end 2 and bend toward the direction of the tooth being restored.

[0030] Specifically, the clamping part 5 can extend and follow the shape of the two sides of the sheet-like body, as well as the lip end 3 and the tongue end 4, and gradually narrows and has a curved shape; it can be clamped by clamping pliers, making it convenient to insert into the gap between teeth and adjust the posture and fix the sheet-like body.

[0031] Optionally, the lip tip 3 is configured as a curve that slopes from the lip side toward the tongue side.

[0032] Specifically, the labial edge 3 has a curved shape that slopes inward toward the inside of the oral cavity from the gingival edge 1 to the incisal edge 2.

[0033] Optionally, the lingual tip 4 is configured as a curved shape that slopes from the labial side toward the lingual side, and the width of the incision tip 2 is smaller than the width of the gingival tip 1.

[0034] Specifically, the edge of the tongue tip 4 curves inward toward the inside of the oral cavity from the gingival tip 1 to the incisional tip 2, and the distance between the labial tip 3 and the tongue tip 4 gradually decreases from the gingival tip 1 to the incisional tip 2, so that the sheet-like body in the final integrated restoration is a trapezoidal shape with the incisional tip 2 slightly shorter and the gingival tip 1 slightly longer.

[0035] Optionally, the dental restorative resin is a light-cured composite resin.

[0036] Specifically, the dental restorative resin uses a light-cured composite resin, which can be 3M P60 composite resin from 3M.

[0037] Alternatively, the edge of the gingival tip 1 is gradually thinned and rounded.

[0038] Specifically, the edge of the gingival tip 1 is thin and rounded, forming a "feathered edge," which facilitates penetration into the subgingival region and avoids overhangs.

[0039] Optionally, the clamping part 5 is integrally formed on the cut end 2.

[0040] Specifically, the clamping part 5 can be pre-formed as an integral part with the sheet-like body, and the clamping part 5 can be removed after the filling dental restorative resin has been cured.

[0041] Optionally, the concave surface 6 is provided with an adhesive layer for bonding with dental restorative resin.

[0042] Specifically, a thin layer of adhesive, such as 3M ESPE Single Bond Universal 8th Generation Universal Adhesive, can be pre-applied to form an adhesive layer, ensuring adhesion to the filling dental restorative resin.

[0043] like Figure 4 As shown, the present invention also provides a method of using a preformed resin restorative sheet for dental restoration, comprising: Apply rubber dam, acid etch the tooth structure, and apply adhesive; The pre-formed resin restoration piece for dental restoration described above is placed in the gap between the teeth to be restored by clamping the clamping part 5. Fill cavity 8 with dental restorative resin; Light curing allows the sheet material to form an integral restoration with the filling dental resin. Remove the clamping part 5 and trim the one-piece restoration to make its lip and cheek sides meet physiological requirements.

[0044] Specifically, when using the aforementioned pre-formed resin restorative sheet for dental restoration, taking a single anterior interdental space restoration as an example, the steps are as follows: 1. Apply rubber dam, acid etch tooth structure, and apply adhesive: routine acid etching, rinsing, drying, and application of adhesive.

[0045] 2. Placement of the restorative piece: Select a suitable pre-formed resin restorative piece for dental restoration, place it in the gap between the teeth, and fix it using the clamping part 5 and the special positioning forceps.

[0046] 3. Filling with resin: Fill the cavity 8 with dental restorative resin.

[0047] 4. Integrated curing: Light curing is performed, and the sheet-like material is bonded to the filling dental restorative resin to form a single restoration.

[0048] 5. Final processing: Remove the positioning tool and clamping part 5, and only trim the filling port and edge flash, etc. The repair piece is left as the adjacent surface of the restoration and does not need to be removed.

[0049] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A preformed resin restorative sheet for dental restoration, characterized in that, include: The sheet is made of dental restorative resin. The first end of the sheet is the gingival end, the second end opposite the first end is the incisal end, the third end of the sheet is the labial end, and the fourth end opposite the third end is the lingual end. The gingival end is used to conform to the shape of the gingiva. The incisal end is provided with a clamping part extending away from the gingival end. One side of the sheet is concave and is used to form a filling cavity with the tooth to be restored. The filling cavity is used to fill the dental restorative resin. The other side of the sheet is convex and serves as the proximal wall of the tooth to be restored. The sheet and the filled dental restorative resin form an integral restoration.

2. The preformed resin restorative sheet for dental restoration according to claim 1, characterized in that, The gingival tip is configured as a concave curve that conforms to the gingival margin.

3. The preformed resin restorative sheet for dental restoration according to claim 1, characterized in that, The clamping part is designed to taper from the gingival end to the incisal end and bends toward the tooth being restored.

4. The preformed resin restorative sheet for dental restoration according to claim 1, characterized in that, The lip tip is designed as a curved shape that slopes from the lip side toward the tongue side.

5. The preformed resin restorative sheet for dental restoration according to claim 4, characterized in that, The tongue tip is configured as a curved shape that slopes from the labial side toward the lingual side, and the width of the cut tip is smaller than the width of the gingival tip.

6. The preformed resin restorative sheet for dental restoration according to claim 1, characterized in that, The dental restorative resin is a light-cured composite resin.

7. The preformed resin restorative sheet for dental restoration according to claim 1, characterized in that, The edges of the gingival apex gradually thin and become rounded.

8. The preformed resin restorative sheet for dental restoration according to claim 1, characterized in that, The clamping part is integrally formed at the cut end.

9. The preformed resin restorative sheet for dental restoration according to claim 1, characterized in that, The concave surface is provided with an adhesive layer, which is used to bond with dental restorative resin.

10. A method of using a preformed resin restorative sheet for dental restoration, characterized in that, include: Apply rubber dam, acid etch the tooth structure, and apply adhesive; The preformed resin restoration sheet for dental restoration as described in any one of claims 1-9 is placed at the interdental space of the tooth to be restored by clamping the clamping part. Fill the cavity with dental restorative resin; Light curing allows the sheet material to form an integral restoration with the filling dental resin. Grind away the clamping part and trim the one-piece restoration.

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