Surface nano-coating modified combined zirconium dioxide denture

Abstract

This invention belongs to the field of oral restoration materials technology, specifically a composite zirconia denture with a modified surface nano-coating. It includes: a matrix for connection to the tooth body; a crown made of zirconia, with an abutment connection portion at its bottom; and an abutment connection portion for connecting the matrix and the crown. The abutment connection portion includes a connecting seat fixed to the bottom of the crown, a fastening ring fixed to the bottom of the connecting seat, and a guide rod fixed to the bottom of the fastening ring. This invention allows the crown to be rotated first using a tool, disengaging the fastening ring from the internal thread, and then springing up under spring pressure for easy manual control. The crown can then be manually rotated further, using the guide rod (which remains in the guide hole) to rotate the fastening ring, disengaging it from the internal thread, thus completing the removal of the crown. This two-stage fixing design effectively reduces the difficulty of crown installation and removal, making it highly practical.

Description

Technical Field

[0001] This utility model relates to the field of oral restoration materials technology, specifically a composite zirconia denture with a surface nano-coating modification. Background Technology

[0002] Zirconia has become one of the preferred materials for dental restorations due to its excellent biocompatibility, high strength, and high aesthetics.

[0003] Currently, traditional zirconia dentures are mostly fixed to the abutment or implant using adhesives. While this method provides a secure connection, disassembly is extremely difficult when maintenance, replacement, or cleaning of the tissues surrounding the abutment is required, often necessitating destructive removal, causing inconvenience and additional financial burden for patients. Furthermore, conventional zirconia denture surface functionalization typically involves directly applying a nano-coating, but the adhesion between the coating and the dense, smooth zirconia matrix is ​​limited. Under the long-term effects of oral mastication forces, friction, and liquid immersion, the coating is prone to peeling or failure, failing to achieve long-term stability and functional performance. Therefore, there is an urgent need for a zirconia denture structure that offers reliable connections, convenient maintenance, and ensures long-term stability of the functional coating. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A composite zirconia denture with a modified surface nano-coating includes: a matrix for connection to a tooth; a crown made of zirconia, having an abutment connection portion at its bottom; the abutment connection portion for connecting the matrix and the crown, the abutment connection portion including a first connecting seat fixed to the bottom of the crown, a first fastening ring fixed to the bottom of the first connecting seat, a guide rod fixed to the bottom of the first fastening ring, a spring disposed on the side of the guide rod, a second connecting seat disposed below the first connecting seat, a positioning groove formed on the second connecting seat, and a second internal thread disposed at the top of the positioning groove and threadedly connected to the first fastening ring; and a nano-coating, wherein the outer surface of the crown has a microporous layer, and the nano-coating is bonded to the surface of the microporous layer and partially embedded in the microporous layer.

[0007] In a preferred embodiment, the present invention can be further configured such that the base includes a deformation strip fixed to the second connecting seat and a positioning block fixed to the end of the deformation strip.

[0008] In a preferred embodiment, the present invention can be further configured such that both the positioning block and the connecting seat 2 have honeycomb holes on their outer sides.

[0009] In a preferred embodiment, the present invention can be further configured such that: a protective pad is provided at the lower part of the crown, and the protective pad is made of medical-grade silicone.

[0010] In a preferred embodiment, the present invention can be further configured such that the nano-coating is a titanium dioxide nano-coating or a silicon nitride nano-coating.

[0011] In a preferred embodiment, the present invention can be further configured such that: a second fastening ring is fixed to the bottom of the spring, the second fastening ring has a guide hole for the guide rod to be inserted, and the bottom of the positioning groove has an internal thread that is threadedly connected to the second fastening ring.

[0012] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0013] 1. This utility model, through the base connection part, allows the crown to be rotated with a tool first, so that the fastening ring one disengages from the internal thread two. Then, under the action of the spring, the crown springs up, which is convenient for manual operation. Then, the crown is rotated manually, and the guide rod that has not disengaged from the guide hole drives the fastening ring two to rotate, so that the fastening ring two disengages from the internal thread one, thus completing the disassembly of the crown. This two-stage fixing design effectively reduces the difficulty of installing and removing the crown and has high practicality.

[0014] 2. This invention pre-constructs a microporous layer on the outer surface of the crown, enabling the nano-coating to not only bond through van der Waals forces but also to be "anchored" and mechanically interlocked within the micropores. This greatly enhances the bonding strength and stability between the coating and the substrate, ensuring the long-term effectiveness of its antibacterial and wear-resistant functions. Attached Figure Description

[0015] Figure 1 This is a sectional view of the combined zirconia denture of this utility model;

[0016] Figure 2 This is an enlarged view of section A of the combined zirconia denture of this utility model;

[0017] Figure 3 This is an enlarged view of section B of the combined zirconia denture of this utility model.

[0018] Figure label:

[0019] 1. Matrix; 11. Deformation strip; 12. Positioning block; 13. Honeycomb cell;

[0020] 2. Crown; 21. Porous layer; 22. Pad;

[0021] 3. Base connection part; 31. Connecting seat one; 32. Fastening ring one; 33. Guide rod; 34. Spring; 341. Fastening ring two; 342. Guide hole; 343. Internal thread one; 35. Connecting seat two; 36. Positioning groove; 37. Internal thread two;

[0022] 4. Nano-coating. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0024] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0025] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a composite zirconia denture with a modified surface nano-coating.

[0026] Combination Figures 1-3 As shown, this utility model provides a composite zirconia denture with a surface nano-coating modification, comprising: a base 1 for connection to the tooth body; a crown 2 made of zirconia, with an abutment connection portion 3 at its bottom; the abutment connection portion 3 for connecting the base 1 and the crown 2, the abutment connection portion 3 including a connecting seat 31 fixed to the bottom of the crown 2, a fastening ring 32 fixed to the bottom of the connecting seat 31, a guide rod 33 fixed to the bottom of the fastening ring 32, a spring 34 disposed on the side of the guide rod 33, a connecting seat 35 disposed below the connecting seat 31, a positioning groove 36 formed on the connecting seat 35, and an internal thread 37 disposed at the top of the positioning groove 36 and threadedly connected to the fastening ring 32; through the abutment connection portion, the crown can be rotated with a tool to make the fastening ring 35... 32 disengages from the internal thread 37, and then the crown springs up under the action of spring 34, making it easy to manually operate. Then, continue to manually rotate the crown, using the guide rod 33 that has not disengaged from the guide hole 342 to drive the fastening ring 341 to rotate, so that the fastening ring 341 disengages from the internal thread 343, completing the disassembly of the crown. This two-stage fixing design effectively reduces the difficulty of crown assembly and disassembly, and has high practicality. Nano-coating 4: The outer surface of the crown 2 is provided with a microporous layer 21. The nano-coating 4 is bonded to the surface of the microporous layer 21 and partially embedded in the microporous layer 21. By pre-constructing the microporous layer 21 on the outer surface of the crown 2, the nano-coating 4 can not only be bonded by van der Waals forces, but also "anchored" and mechanically interlocked in the micropores, which greatly enhances the bonding strength and stability between the coating and the substrate 1, ensuring the long-term performance of its antibacterial, wear-resistant and other functions.

[0027] Furthermore, the substrate 1 includes a deformable strip 11 fixed to the connecting seat 35 and a positioning block 12 fixed to the end of the deformable strip 11. The deformable strip 11 is made of deformable medical memory material, and its shape can be adjusted according to the holes in the tooth to fit the tooth. The positioning block 12 is placed at the innermost side, and when filling, the filling material can enter the honeycomb pores 13. The positioning block 12 helps to strengthen the stability of the deformable strip 11, thereby improving the strength of the dental implant.

[0028] Furthermore, both the positioning block 12 and the connecting seat 2 35 are provided with honeycomb holes 13 on their outer sides, which allows the filling material to penetrate into the honeycomb holes 13 and improve stability.

[0029] On the other hand, the lower part of the crown 2 is provided with a pad 22, which is made of medical silicone. The lower part of the crown 2 contacts the gums. The use of medical silicone further improves both comfort and safety.

[0030] Furthermore, the nano-coating 4 is either a titanium dioxide nano-coating or a silicon nitride nano-coating. Both coatings provide good protection for dentures and are reasonably designed.

[0031] Furthermore, a second fastening ring 341 is fixed to the bottom of the spring 34. The second fastening ring 341 has a guide hole 342 for the guide rod 33 to be inserted. The bottom of the positioning groove 36 has an internal thread 343 that is threaded to the second fastening ring 341. The guide rod 33, which is not disengaged from the guide hole 342, drives the second fastening ring 341 to rotate, so that the second fastening ring 341 disengages from the internal thread 343, thus completing the removal of the crown. This two-stage fixing design effectively reduces the difficulty of installing and removing the crown.

[0032] The working principle and usage process of this utility model are as follows: First, the deformation strip 11 is adjusted to the desired shape and placed into the tooth body. Filler is then added and cured. Then, the crown 2 is clamped and the fastening ring 32 is inserted into the internal thread 37. At the same time, the fastening ring 341 is screwed into the internal thread 343 to complete the fastening.

[0033] The terms "fixed," "installed," "connected," "set up," "open," "equipped with," "embedded," and "assembled" used in this manual to describe the position or relationship of components all refer to conventional physical connections or spatial configurations that can be understood and implemented by those skilled in the art based on the function of the relevant components, the context, and common knowledge. These relationships encompass, but are not limited to, specific forms such as welding, bonding, threaded fastening, snap-fit, interference fit, plug-in, sliding fit, hinge, integral molding, adjacent arrangement, and opening or slot accommodating. Their purpose is to clearly describe the relative positions, mating methods, and functional implementation paths between components, rather than limiting a single specific structural detail. To ensure a smooth and concise reading experience and ease of understanding, no separate explanation is provided after each term.

[0034] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A composite zirconia denture with a surface nano-coating modification, characterized in that, include: Matrix (1), used for connection with tooth structure; The crown (2) is made of zirconium dioxide and has an abutment connection (3) at its bottom; The abutment connection part (3) is used to connect the base (1) and the crown (2). The abutment connection part (3) includes a first connection seat (31) fixed to the bottom of the crown (2), a first fastening ring (32) fixed to the bottom of the first connection seat (31), a guide rod (33) fixed to the bottom of the first fastening ring (32), a spring (34) provided on the side of the guide rod (33), a second connection seat (35) provided below the first connection seat (31), a positioning groove (36) opened on the second connection seat (35), and an internal thread (37) provided at the top of the positioning groove (36) and threadedly connected to the first fastening ring (32). Nanocoating (4) is provided on the outer surface of the crown (2) with a microporous layer (21). The nanocoating (4) is bonded to the surface of the microporous layer (21) and partially embedded in the microporous layer (21).

2. The composite zirconia denture with surface nano-coating modification according to claim 1, characterized in that, The base (1) includes a deformation strip (11) fixed to the connecting seat (35) and a positioning block (12) fixed to the end of the deformation strip (11).

3. A composite zirconia denture with surface nano-coating modification according to claim 2, characterized in that, Both the positioning block (12) and the connecting seat (35) have honeycomb holes (13) on their outer sides.

4. A composite zirconia denture with surface nano-coating modification according to claim 1, characterized in that, The crown (2) is provided with a pad (22) at the bottom, and the pad (22) is made of medical silicone.

5. A composite zirconia denture with surface nano-coating modification according to claim 1, characterized in that, The nano-coating (4) is a titanium dioxide nano-coating or a silicon nitride nano-coating.

6. A composite zirconia denture with surface nano-coating modification according to claim 1, characterized in that, The bottom of the spring (34) is fixed with a second fastening ring (341), and the second fastening ring (341) has a guide hole (342) for the guide rod (33) to be inserted. The bottom of the positioning groove (36) is provided with an internal thread (343) that is threadedly connected to the second fastening ring (341).

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