Combined layered seal guide

Abstract

The present invention relates to the field of stomatology, and in particular to a combined layered seal guide, comprising a base guide, a dentin layer seal guide, and an enamel layer seal guide, wherein a predetermined area of ​​the base guide is provided with a supporting guide, an outer surface of the dentin layer seal guide is provided with a first moving part, and an outer surface of the enamel layer seal guide is provided with a second moving part, and the dentin layer seal guide and the enamel layer seal guide are sequentially matched with the supporting guide during use; the present invention provides a unified supporting guide on the base guide, and enables subsequent dentin layer seal guides and enamel layer seal guides to be guided and positioned by the same supporting guide, thereby effectively overcoming the problem of inaccurate positioning between layers of traditional independent layered guides due to the lack of a common positioning reference, thereby improving the accuracy and consistency of the positioning of each repair layer seal guide during the repair process.

Description

Technical Field

[0001] The present invention relates to the field of oral medicine, and in particular to a combined layered seal guide plate, which is particularly suitable for dentin-enamel layered restoration based on fluid resin. Background Art

[0002] In modern dental restorations, resin materials are widely used for direct restoration of tooth defects due to their excellent aesthetics and biocompatibility. To improve the accuracy and efficiency of restorations while reducing operational complexity, the use of digital virtual wax-up designs and 3D-printed guides for fluid resins effectively addresses the technical challenges of direct resin restorations, which are often difficult, time-consuming, and often lack high-precision results.

[0003] For direct resin restorations involving dentin, in order to obtain a dentin-enamel layering effect close to that of natural teeth, it is necessary to design a virtual preparation of the target restoration and generate a layered stamp guide based on the virtual preparation morphology and the virtual wax-up. However, traditional layered stamp guides have the problem of inaccurate positioning. After the restoration is completed guided by the first layer of guide, if there is a small amount of overflow of the restorative material or morphological deviation, in the absence of clear positioning instructions, it may interfere with the precise positioning of the subsequent second layer of guide, resulting in poor molding effect of the final restoration. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that traditional layered seal guides have no unified fixing components, low positioning repeatability and material waste. The purpose is to provide a combined layered seal guide, which improves the accuracy and consistency of the positioning of the seal guides of each repair layer during the repair process.

[0005] The present invention is achieved through the following technical solutions:

[0006] A combined layered seal guide plate, comprising:

[0007] A base guide plate, the base guide plate is used to contact the adjacent teeth of the affected tooth to provide retention force, the base guide plate exposes the labial side, the incisal end and part of the lingual and palatal area of ​​the affected tooth through the repair opening, and a guide member is provided in a predetermined area;

[0008] a dentin layer stamp guide plate, the inner surface of which matches the predetermined dentin layer shape of the target restoration, and an outer surface of which is provided with a first moving member, the first moving member being adapted to the guide member for guiding the dentin layer stamp guide plate to slide to a predetermined dentin layer formation position of the restoration opening;

[0009] an enamel layer stamp guide plate, the inner surface of which matches the predetermined enamel layer of the target restoration, and an outer surface of which is provided with a second moving member, the second moving member being adapted to the guide member for guiding the enamel layer stamp guide plate to slide to a predetermined enamel layer formation position of the restoration opening;

[0010] Wherein, the dentin layer stamp guide plate and the enamel layer stamp guide plate are matched with the supporting guide in sequence during use.

[0011] Specifically, the predetermined area includes the labial and buccal areas of the mesial adjacent teeth of the affected tooth, and / or the labial and buccal areas of the distal adjacent teeth of the affected tooth.

[0012] Optionally, the base guide at least partially covers the lingual side or the palatal side of the affected tooth.

[0013] Optionally, the left and right outer walls of the dentin layer stamp guide contact or tightly fit with the left and right inner walls of the repair opening during the sliding process, and the left and right outer walls of the enamel layer stamp guide contact or tightly fit with the left and right inner walls of the repair opening during the sliding process.

[0014] Specifically, a guide groove along the crown-root direction is provided in the guide member;

[0015] The first moving member includes a first sliding portion and a first connecting portion, the first sliding portion slides in the guide groove along the crown-root direction, and the first connecting portion connects the first sliding portion and the dentin layer seal guide plate;

[0016] The second moving member includes a second sliding block portion and a second connecting portion. The second sliding block portion slides in the guide rail groove along the crown-root direction. The second connecting portion connects the second sliding block portion and the enamel layer seal guide plate.

[0017] Optionally, the first sliding portion has a first predetermined length in the coronal-radial direction, the first predetermined length being configured to limit a maximum sliding stroke of the first moving member, and when the first moving member is at the maximum sliding stroke, the inner surface of the dentin layer seal guide is positioned at a predetermined position of the dentin layer of the target restoration;

[0018] The second sliding portion has a second predetermined length in the crown-root direction, and the second predetermined length is configured to limit the maximum sliding stroke of the second movable member. When the second movable member is at the maximum sliding stroke, the inner surface of the enamel layer stamp guide is positioned at a predetermined position of the enamel layer of the target restoration.

[0019] Optionally, the guide rail groove adopts a dovetail groove or a T-shaped groove, the first sliding block part and the second sliding block part are respectively a dovetail block and a T-shaped block adapted to the guide rail groove, and the first connecting part and the second connecting part are connecting rods.

[0020] A method for producing a combined layered seal guide plate, for producing the combined layered resin seal guide plate as described in any one of the above items, the production method comprising:

[0021] Based on the patient's dentition morphology data, a digital prototype of the base guide is generated; and a restoration opening and a guide member defining the area to be restored of the affected tooth are designed and formed on the digital prototype of the base guide to generate a digital base guide;

[0022] A digital dentin seal guide is generated for the dentin layer of the affected tooth. The dentin seal guide has an inner surface that matches the predetermined restoration shape of the dentin layer. A first moving part that is compatible with the guide is integrated on the outer surface of the dentin seal guide. The first moving part is used to guide the dentin seal guide to be positioned within the restoration opening.

[0023] A digital enamel layer stamp guide is generated for the enamel layer of the affected tooth. The enamel layer stamp guide has an inner surface that matches the predetermined restoration shape of the enamel layer. A second moving part that is compatible with the guide is integrated on the outer surface of the enamel layer stamp guide. The second moving part is used to guide the enamel layer stamp guide to be positioned within the restoration opening and above the formed dentin layer.

[0024] After completing the aforementioned digital design, the physical components of the base guide, the dentin layer stamp guide, and the enamel layer stamp guide are manufactured.

[0025] Specifically, the method for generating a digital dentin layer seal guide includes:

[0026] Based on the virtual preparation shape of the affected tooth, a digital prototype of the dentin layer seal guide is generated, whose inner surface matches the virtual preparation shape;

[0027] Perform preliminary adaptation modification on the digital prototype of the dentin seal guide based on the digital base guide;

[0028] A digital model of a first moving part adapted to the guide member is designed and integrated on the outer surface of the digital prototype of the dentin layer seal guide after preliminary trimming;

[0029] The process of positioning the digital prototype of the dentin layer seal guide under the guidance of the first moving part is simulated, and based on the simulation results, the digital prototype of the dentin layer seal guide is finally cut without affecting the inner surface morphology of the corresponding restoration to eliminate the steric hindrance during the positioning process;

[0030] Obtain a digital dentin stamp guide.

[0031] Specifically, the method for generating a digital enamel layer seal guide includes:

[0032] Based on the virtual wax-up morphology of the affected tooth, a digital prototype of the enamel layer seal guide is generated, whose inner surface matches the virtual wax-up morphology;

[0033] Perform preliminary adaptation adjustments on the digital prototype of the enamel layer seal guide based on the digital base guide;

[0034] Designing and integrating a digital model of a second moving part adapted to the guide part on the outer surface of the digital prototype of the enamel layer seal guide after preliminary trimming;

[0035] Simulate the placement process of the digital prototype of the enamel layer stamp guide under the guidance of the second moving part, and based on the simulation results, perform the final cutting of the digital prototype of the enamel layer stamp guide without affecting the inner surface morphology of the corresponding restoration to eliminate the steric hindrance during the placement process;

[0036] Obtain a digital enamel layer stamp guide.

[0037] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0038] The present invention provides a unified guide member on the base guide plate, and enables the subsequent dentin layer seal guide plate and enamel layer seal guide plate to be guided and positioned by the same guide member, thereby effectively overcoming the problem of inaccurate positioning between layers caused by the lack of a common positioning reference in traditional independent layered guide plates, thereby improving the accuracy and consistency of the positioning of the seal guide plates of each repair layer during the repair process.

[0039] The present invention enables the dentin layer seal guide and the enamel layer seal guide to share the same base guide and the retention structure and guide system thereon, thereby avoiding the need to separately produce an independent guide plate containing complete retention components for each repair layer, effectively reducing the overall material consumption of the repair guide system, thereby reducing related production costs and improving economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, are used to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention, and the accompanying drawings are included in and constitute a part of this specification and do not constitute a limitation of the embodiments of the present invention.

[0041] Figure 1 The present invention is a schematic structural diagram of a combined layered seal guide plate.

[0042] Figure 2 2 is a schematic structural diagram of a base guide plate according to the present invention.

[0043] Figure 3 2 is a schematic structural diagram of the dentin layer seal guide according to the present invention.

[0044] Figure 4 It is a schematic structural diagram of the enamel layer seal guide according to the present invention.

[0045] Figure 5 2. It is a schematic diagram of the base guide plate in place according to the present invention.

[0046] Figure 6 This is a schematic diagram of the placement of the base guide and the dentin layer seal guide according to the present invention.

[0047] Figure 7 This is a schematic diagram of the base guide and the enamel seal guide according to the present invention in place.

[0048] Figure 8 This is the virtual preparation form of the target restoration according to the present invention.

[0049] Figure 9 This is the virtual wax-up form of the target restoration according to the present invention.

[0050] Reference numerals: 1 - base guide, 11 - guide member, 2 - dentine layer stamp guide, 21 - first moving member, 3 - enamel layer stamp guide, 31 - second moving member. DETAILED DESCRIPTION

[0051] To make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the relevant content and are not intended to limit the present invention.

[0052] It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings.

[0053] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0054] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0055] In the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0056] Example 1

[0057] like Figure 1 As shown, the present embodiment discloses a combined layered stamp guide. The working principle is briefly described as follows: the two layered stamp guides utilize the supporting guide 11 provided on the base guide 1 to achieve precise and repeatable sliding into position through their respective moving parts (movable components cooperating with the supporting guide 11), thereby assisting in completing the layered restoration of teeth.

[0058] like Figure 2 and Figure 5 As shown, the base guide 1 is used to contact the adjacent teeth of the affected tooth to provide retention force. The base guide 1 exposes the labial side, incisal end and part of the palatal area of ​​the affected tooth through the restoration opening, and a guide member 11 is provided in a predetermined area.

[0059] The base guide 1 is provided with a restoration opening (i.e., an open area of ​​a specific shape) which exposes the labial side (i.e., the side facing the lips), the incisal portion (i.e., the biting edge or tip of the tooth), and part of the palatal area (i.e., the side of the tooth closest to the tongue or palate) of the tooth to be restored. The restoration work will be performed in this exposed area.

[0060] The guide member 11 provided in a predetermined area of ​​the base guide plate 1 is a key structure for achieving precise guidance and positioning of the subsequent dentin and enamel layer stamp guides 3. The predetermined area includes the labial and buccal areas of the mesial neighboring teeth of the affected tooth, and / or the labial and buccal areas of the distal neighboring teeth of the affected tooth. The predetermined area can be located in the labial and buccal areas (i.e., the side facing the lips or cheeks) of the mesial neighboring teeth (i.e., the teeth close to the facial midline), and / or the labial and buccal areas of the distal neighboring teeth (i.e., the teeth away from the facial midline). This means that the guide member 11 can be flexibly provided on the specific surfaces of one or two adjacent teeth according to clinical needs. In addition, to further enhance the stability and fit of the base guide plate 1, it is designed to at least partially cover the lingual side (inside of the lower teeth, facing the tongue) or palatal side (inside of the upper teeth, facing the palate) of the affected tooth.

[0061] like Figure 3 and Figure 6 As shown, the inner surface (i.e., the side facing the tooth tissue surface) of the dentin layer seal guide 2 matches the predetermined shape of the dentin layer of the target restoration, and a first moving part 21 is provided on its outer surface, whose function is to guide the dentin layer seal guide 2 to slide along the supporting guide 11. The first moving part 21 is adapted to the supporting guide 11 and is used to guide the dentin layer seal guide 2 to slide to the predetermined dentin layer formation position of the restoration opening.

[0062] In order to further improve the positioning accuracy and stability, the left and right outer walls (i.e., the side surfaces) of the dentin layer seal guide 2 can be designed to contact or tightly fit with the left and right inner walls of the repair opening on the base guide 1 during the sliding positioning process.

[0063] like Figure 4 and Figure 7 As shown, the inner surface morphology of the enamel layer stamp guide plate 3 matches the predetermined morphology of the enamel layer of the target restoration, and a second moving member 31 is provided on its outer surface, whose function is to guide the enamel layer stamp guide plate 3 to slide along the supporting member 11. The second moving member 31 is adapted to the supporting member 11 and is used to guide the enamel layer stamp guide plate 3 to slide to the predetermined enamel layer formation position of the restoration opening;

[0064] In order to further improve the positioning accuracy and stability, the left and right outer walls of the enamel layer seal guide plate 3 are in contact with or tightly fitted with the left and right inner walls of the restoration opening during the sliding positioning process.

[0065] During use, the dentin layer stamp guide 2 and the enamel layer stamp guide 3 sequentially cooperate with the supporting member 11. That is, during actual use, the dentin layer stamp guide 2 and the enamel layer stamp guide 3 successively and sequentially cooperate with the supporting member 11 on the base guide 1 to complete the molding of the restoration material at their respective layers, thereby sharing the same supporting member 11.

[0066] In operation, the base guide 1 is first stably fixed to the adjacent tooth of the affected tooth, with the restoration opening thereon precisely exposing the tooth area to be repaired. Then, the dentin layer stamp guide 2, through its first moving part 21, cooperates with the supporting member 11 of the base guide 1 and slides to a predetermined position for molding the dentin layer resin. After the dentin layer solidifies, the dentin layer stamp guide 2 is removed. Next, the enamel layer stamp guide 3, through its second moving part 31, cooperates with the same supporting member 11 and slides to a predetermined position (covering the already formed dentin layer) for molding the enamel layer resin. In this way, precise guidance and shaping of the restorative materials on both the dentin and enamel layers are achieved.

[0067] Example 2

[0068] This embodiment further describes the supporting and guiding member 11 and the moving member.

[0069] A guide groove is provided in the guide member 11 along the crown-root direction; the crown-root direction is the direction from the top of the crown toward the root tip, which can usually be understood as the vertical direction, and the guide groove is the track for sliding guidance of the slider part in the moving part. The guide groove adopts a dovetail groove or a T-slot, which can provide stable and unidirectional sliding guidance and prevent the slider from falling out in an unpredictable direction.

[0070] The first moving member 21 includes a first sliding portion and a first connecting portion. The first sliding portion slides in the guide groove along the crown-root direction. The first connecting portion connects the first sliding portion and the dentin layer seal guide plate 2.

[0071] The first sliding portion has a first predetermined length in the crown-root direction, and the first predetermined length is configured to limit the maximum sliding stroke of the first movable member 21 (i.e., the farthest distance it can slide). When the first movable member 21 is at the maximum sliding stroke, the inner surface of the dentin layer stamp guide 2 is positioned at a predetermined position in the dentin layer of the target restoration.

[0072] When the first moving member 21 slides to its maximum stroke, the inner surface of the dentin layer stamp guide 2 can be accurately positioned at a predetermined position in the dentin layer of the target restoration. That is, by controlling the length of the slider portion, the final parking position of the dentin layer stamp guide 2 can be accurately controlled, thereby ensuring that the dentin restoration material can be accurately formed according to the predetermined design.

[0073] The second moving member 31 includes a second slider portion and a second connecting portion. The second slider portion slides in the guide groove along the crown-root direction. The second connecting portion connects the second slider portion and the enamel layer seal guide plate 3.

[0074] The second slider portion has a second predetermined length in the crown-root direction, and the second predetermined length is configured to limit the maximum sliding stroke of the second movable member 31. When the second movable member 31 is at the maximum sliding stroke, the inner surface of the enamel layer stamp guide 3 is positioned at a predetermined position of the enamel layer of the target restoration.

[0075] When the second moving member 31 slides to its maximum stroke, the inner surface of the enamel layer stamp guide 3 can be accurately positioned at a predetermined position of the enamel layer of the target restoration (usually above the formed dentin layer), thereby ensuring that the enamel restoration material can be accurately formed according to the predetermined design.

[0076] The first slider portion and the second slider portion are respectively a dovetail block and a T-block adapted to the guide rail groove. If the guide rail groove is a dovetail groove, the first slider portion / the second slider portion is correspondingly a dovetail block; if the guide rail groove is a T-slot, the first slider portion / the second slider portion is a T-block.

[0077] The first connecting portion and the second connecting portion are connecting rods, which accurately transmit the movement of the slider portion to the seal guide plate.

[0078] Example 3

[0079] This embodiment discloses a complete method process for producing the combined layered resin seal guide of the aforementioned embodiment. The basic process is: first, a base guide 1 with a repair opening and a guide 11 is designed according to the patient's specific oral data; then, a seal guide with a specific inner surface morphology and integrated with corresponding moving parts is designed for the dentin layer and the enamel layer respectively; finally, based on these completed digital designs, the physical body of the guide system is manufactured.

[0080] The specific production steps include:

[0081] Based on the patient's dental arch morphology data (such as three-dimensional data obtained through oral scanning), a digital prototype of the base guide 1 is generated; and a restoration opening and a supporting guide 11 that define the area of ​​the affected tooth to be restored are designed and formed on the digital prototype of the base guide 1. The digital prototype of the base guide 1 is then imported into engineering design software (such as CAD) and merged with the supporting guide 11 to form a complete base guide 1.

[0082] A digital dentin seal guide 2 is generated for the dentin layer of the affected tooth. The dentin seal guide 2 has an inner surface that matches the predetermined restoration shape of the dentin layer. A first moving member 21 that is compatible with the guide member 11 is integrated on the outer surface of the dentin seal guide 2. The first moving member 21 is used to guide the dentin seal guide 2 to position within the restoration opening.

[0083] A digital enamel layer stamp guide 3 is generated for the enamel layer of the affected tooth. The enamel layer stamp guide 3 has an inner surface that matches the predetermined restoration shape of the enamel layer. A second moving part 31 that is compatible with the guide 11 is integrated on the outer surface of the enamel layer stamp guide 3. The second moving part 31 is used to guide the enamel layer stamp guide 3 to be positioned within the restoration opening and above the formed dentin layer.

[0084] After completing the digital design of the aforementioned base guide plate 1, dentin layer stamp guide plate 2, and enamel layer stamp guide plate 3, the physical components of the base guide plate 1, dentin layer stamp guide plate 2, and enamel layer stamp guide plate 3 are manufactured.

[0085] The method for generating the digital dentin layer seal guide 2 includes:

[0086] like Figure 8 As shown, based on the virtual preparation shape of the affected tooth, a digital prototype of the dentin layer seal guide 2 is generated, the inner surface of which matches the virtual preparation shape. First, it is necessary to operate in the dental design software to generate the digital prototype of the dentin layer seal guide 2 based on the virtual preparation shape obtained after virtual preparation of the affected tooth (that is, simulating the tooth shape after the dentist prepares the tooth in the computer).

[0087] Perform preliminary adaptability adjustments on the digital prototype of the dentin layer seal guide 2 based on the digital base guide 1; import the digital prototype of the dentin layer seal guide 2 generated in the previous step into the engineering design software together with the previously designed digital base guide 1.

[0088] Based on the precise exposure of the restoration opening on the digital base guide 1, preliminary shape adjustments are made to the digital prototype of the dentin stamp guide 2. This usually involves cutting or Boolean operations to ensure that the outer contour of the dentin stamp guide 2 fits within the operating space provided by the base guide 1.

[0089] A digital model of the first moving part 21, which mates with the guide member 11, is designed and integrated onto the outer surface of the preliminarily trimmed digital prototype of the dentin layer seal guide 2. Based on the position and morphological characteristics of the guide member 11 on the digital base guide 1, a digital model of the first moving part 21 is designed and generated at an appropriate spatial location on the outer surface of the preliminarily trimmed digital prototype of the dentin layer seal guide 2. Subsequently, the digital model of the first moving part 21 is merged with the digital prototype of the dentin layer seal guide 2 to form an integrated component.

[0090] To ensure accuracy and smooth positioning in actual use, a virtual positioning simulation is required to simulate the positioning process of the digital prototype of the dentin layer stamp guide plate 2 under the guidance of the first moving member 21 (i.e., along the guide groove direction of the supporting member 11). Based on the simulation results, the digital prototype of the dentin layer stamp guide plate 2 is finally trimmed without affecting the internal surface morphology of the corresponding restoration to eliminate steric hindrance during the positioning process (i.e., collision or interference between the guide plate and surrounding structures during sliding or final positioning).

[0091] After completing all the above-mentioned design, modification, integration and simulation optimization steps, a digital dentin layer seal guide 2 that meets the design requirements is obtained, which can then be directly used in the subsequent physical component production.

[0092] Similar to the method for generating the digital dentin layer seal guide 2, the method for generating the digital enamel layer seal guide 3 includes:

[0093] like Figure 9 As shown, based on the virtual wax-up morphology of the affected tooth, a digital prototype of the enamel layer seal guide 3 is generated, the inner surface of which matches the virtual wax-up morphology;

[0094] Perform preliminary adaptation modification on the digital prototype of the enamel layer seal guide 3 based on the digital base guide 1;

[0095] A digital model of a second moving part 31 adapted to the guide member 11 is designed and integrated on the outer surface of the digital prototype of the enamel layer seal guide 3 after preliminary trimming;

[0096] The process of positioning the digital prototype of the enamel layer stamp guide 3 under the guidance of the second moving member 31 is simulated, and based on the simulation results, the digital prototype of the enamel layer stamp guide 3 is finally cut without affecting the inner surface morphology of the corresponding restoration to eliminate steric hindrance during the positioning process;

[0097] Obtain digital enamel layer stamp guide 3.

[0098] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments / methods or examples. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0099] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0100] It should be understood by those skilled in the art that the above embodiments are merely for the purpose of illustrating the present invention clearly, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above invention, and these changes or modifications are still within the scope of the present invention.

Claims

1. A combined layered seal guide, characterized in that: include: A base guide plate (1), the base guide plate (1) being used to contact the adjacent teeth of the affected tooth to provide a retention force, the base guide plate (1) exposing the labial side, the incisal end and part of the lingual and palatal area of ​​the affected tooth through a repair opening, and provided with a guide member (11) in a predetermined area; A dentin layer stamp guide plate (2) having an inner surface morphology matching a predetermined dentin layer morphology of a target restoration, and a first moving member (21) provided on an outer surface thereof, wherein the first moving member (21) is adapted to the guide member (11) and is used to guide the dentin layer stamp guide plate (2) to slide to a predetermined dentin layer formation position of the restoration opening; An enamel layer stamp guide plate (3) having an inner surface morphology matching a predetermined enamel layer morphology of a target restoration, and an outer surface provided with a second moving member (31), the second moving member (31) being adapted to the guide member (11) for guiding the enamel layer stamp guide plate (3) to slide to a predetermined enamel layer forming position of the restoration opening; The dentin layer seal guide plate (2) and the enamel layer seal guide plate (3) are sequentially matched with the guide member (11) during use; The predetermined area where the guide member is located includes the labial and buccal area of ​​the mesial adjacent tooth of the affected tooth, and / or the labial and buccal area of ​​the distal adjacent tooth of the affected tooth.

2. A combined layered seal guide according to claim 1, characterized in that: The base guide plate (1) at least partially covers the lingual side or the palatal side of the affected tooth.

3. A combined layered seal guide according to claim 1, characterized in that: The left and right outer side walls of the dentin layer stamp guide plate (2) are in contact with or tightly fitted to the left and right inner side walls of the repair opening during the sliding process.

4. A combined layered seal guide according to claim 1, characterized in that: A guide groove along the crown-root direction is provided in the guide member (11); The first moving part (21) comprises a first sliding block portion and a first connecting portion, the first sliding block portion slides in the guide rail groove along the crown-root direction, and the first connecting portion connects the first sliding block portion and the dentin layer seal guide plate (2).

5. A combined layered seal guide according to claim 4, characterized in that: The second moving member (31) comprises a second sliding block portion and a second connecting portion, the second sliding block portion slides in the guide rail groove along the crown-root direction, and the second connecting portion connects the second sliding block portion and the enamel layer seal guide plate (3).

6. A combined layered seal guide according to claim 5, characterized in that: The first sliding portion has a first predetermined length in the crown-root direction, and the first predetermined length is configured to limit the maximum sliding stroke of the first moving member (21). When the first moving member (21) is at the maximum sliding stroke, the inner surface of the dentin layer stamp guide (2) is positioned at a predetermined position of the dentin layer of the target restoration.

7. The combined layered seal guide according to claim 6, characterized in that: The second sliding portion has a second predetermined length in the crown-root direction, and the second predetermined length is configured to limit the maximum sliding stroke of the second moving member (31). When the second moving member (31) is at the maximum sliding stroke, the inner surface of the enamel layer stamp guide (3) is positioned at a predetermined position of the enamel layer of the target restoration.

8. The combined layered stamp guide according to claim 5, characterized in that: The guide rail groove adopts a dovetail groove or a T-shaped groove, and the first sliding block part and the second sliding block part are respectively a dovetail block and a T-shaped block adapted to the guide rail groove.

9. The combined layered seal guide according to claim 8, characterized in that: The first connecting portion and the second connecting portion are connecting rods.

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