Resin base for hardening and wear-resistant and deformation-resistant denture

Abstract

The utility model relates to the technical field of denture base, and disclose a kind of wear-resistant deformation-resistant denture resin base of surface hardening treatment, including edge buffer area, the edge buffer area includes gum attachment point one, gum attachment point two and tooth site groove, the gum attachment point one, the gum attachment point two are located in adjacent position, and the tooth site groove is set in the top of gum attachment point one, gum attachment point two. The gum attachment point one of edge buffer area, gum attachment point two is the structure for adapting oral gum, can be closely attached to gum to avoid gap and food residue accumulation, top tooth site groove can be accurately positioned, ensure that anterior teeth area, transition side tooth area, plate tooth and oral cavity mastication area correspond, improve oral cavity adaptability and initial positioning accuracy;Through the nanometer ceramic modified resin surface hardening layer covered by each area top surface, can effectively resist the wear caused by anterior teeth area cutting, plate tooth grinding and labial and buccal side friction, prolong the service life of base surface.

Description

Technical Field

[0001] This utility model relates to the field of denture base technology, specifically to a wear-resistant and deformation-resistant denture resin base with surface hardening treatment. Background Technology

[0002] In the field of resin denture bases, existing products struggle to meet the comprehensive clinical needs for fit, wear resistance, and structural stability: their edges and tissue surfaces are mostly designed with a general arc shape, lacking a fitting structure that precisely matches the gingival morphology, easily creating gaps that accumulate food debris and cause oral problems. Furthermore, the lack of a dedicated positioning structure often leads to misalignment between the anterior, lateral, and malocclusion areas and the oral masticatory areas. The surfaces are mostly made of unmodified resin, which has low hardness and is prone to wear and indentation due to chewing friction, shortening its lifespan. The lack of rigid connections between functional areas makes them prone to cracking or breakage due to stress concentration during chewing, and the single fixation method makes them prone to displacement during dynamic use, leading to a chain reaction of problems such as occlusal imbalance and alveolar ridge irritation. Utility Model Content

[0003] The purpose of this utility model is to solve the problems of existing products, such as the edges and tissue surfaces being of a general arc shape, lacking precise fitting and positioning structure, which easily leads to gaps, residue accumulation, and regional misalignment; the surface being made of unmodified resin with low hardness and easy wear; and the lack of rigid connection between functional areas and the single fixing method, which easily leads to stress cracking and displacement. This utility model provides a wear-resistant and deformation-resistant denture resin base with surface hardening treatment.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A surface-hardened, wear-resistant, and deformation-resistant denture resin base includes a marginal buffer zone. The marginal buffer zone includes a first gingival attachment point, a second gingival attachment point, and a tooth positioning groove. The first and second gingival attachment points are located adjacent to each other. The tooth positioning groove is located at the top of the first and second gingival attachment points. An anterior tooth region is located at the top front end of the marginal buffer zone. A transitional lateral tooth region is located at the top middle of the side end of the marginal buffer zone. Insulators are located at the top left, right, and rear ends of the marginal buffer zone. The marginal buffer zone, the anterior tooth region, and the... A fixing component extends longitudinally from the axis of the transition lateral tooth area and the core of the die to the bottom axis of the edge buffer zone. The top surfaces of the edge buffer zone, the anterior tooth area, the transition lateral tooth area, and the die are all covered with a surface hardening layer, which is a nano-ceramic modified resin coating. The fixing component includes a nut head and a threaded rod. The top end of the threaded rod is fixedly connected to the bottom side of the nut head. The sidewall of the threaded rod extends through the inner axis of the edge buffer zone and the die. Adjacent groups of the sidewall of the edge buffer zone are provided with hanging pins.

[0006] Furthermore, the hooks are set at the adjacent edges of the sidewalls of each group of gingival attachment points one and two. The two ends of the special rubber bands are respectively put on the hooks of the adjacent edge buffer zones, and other fixed structures in the oral cavity can be connected through the rubber bands.

[0007] Furthermore, both the first gingival attachment point and the second gingival attachment point are arc-shaped protrusions adapted to the shape of the oral gingiva. The cross-sections of both the first gingival attachment point and the second gingival attachment point are inverted U-shaped, and their curvature and shape perfectly match the natural contour of the corresponding area of ​​the oral cavity gingiva. They can fit closely to the gingival surface and avoid gaps between the base and the gingiva.

[0008] Furthermore, the surface hardening layer extends to the labial and buccal surfaces of the anterior teeth, the proximal surfaces of the transitional teeth, and the occlusal surfaces of the molars, covered with a nano-ceramic modified resin coating. The nano-ceramic particles have high hardness, which can significantly improve the wear resistance of the coating and prevent wear on the base surface caused by long-term friction in high-frequency contact areas.

[0009] Furthermore, the outer surface of the threaded rod of the fixing component is provided with a trapezoidal external thread, and the inner axis of the edge buffer and the die is provided with a positioning hole adapted to the threaded rod. The inner wall of the positioning hole is provided with an internal thread that meshes with the trapezoidal external thread. Compared with ordinary threads, the trapezoidal external thread has the advantages of uniform force distribution and strong anti-slipping ability, which can prevent the thread from loosening due to vibration during chewing and ensure that the anterior tooth area, the transitional lateral tooth area, the die and the edge buffer form a rigid whole.

[0010] Furthermore, the hook is a cylindrical structure used to fasten the special rubber band to the adjacent edge buffer zone, and the two ends of the special rubber band are respectively put on the hook of the adjacent edge buffer zone (if it is a complete denture, it is connected to other fixed structures in the oral cavity through the rubber band).

[0011] Furthermore, a medical glass fiber woven mesh is embedded inside the body of the edge buffer, covering the gingival attachment point area of ​​the edge buffer to the root of the incisor, and is completely fused with the resin body of the edge buffer, so as to avoid micro-cracks or macro-deformation of the resin body due to excessive local stress, and extend the service life of the base.

[0012] Compared with the prior art, this utility model provides a wear-resistant and deformation-resistant denture resin base with surface hardening treatment, which has the following beneficial effects:

[0013] 1. This surface-hardened, wear-resistant, and deformation-resistant denture resin base features a structure with two gingival attachment points in the marginal buffer zone that are adapted to the oral gingiva. This structure allows for a close fit to the gums, preventing gaps and food debris accumulation. The top tooth positioning grooves ensure precise positioning, guaranteeing correspondence between the anterior teeth, transitional lateral teeth, and molars with the oral chewing area, thus improving oral fit and initial positioning accuracy. The nano-ceramic modified resin surface-hardened layer covering the top surface of each area effectively resists wear caused by anterior teeth cutting, molar grinding, and labial / buccal friction, extending the lifespan of the denture base surface.

[0014] 2. This surface-hardened, wear-resistant, and deformation-resistant denture resin base, through a longitudinally penetrating fixing component, uses threaded rods and positioning holes to lock together the marginal buffer zone, anterior tooth area, and other parts into a whole. This disperses chewing forces and avoids structural displacement or breakage caused by localized stress concentration. The hanging pins on the sidewalls of the marginal buffer zone assist in connecting special elastic bands, further limiting the base's displacement within the oral cavity and improving stability. Overall, it achieves a comfortable oral fit, wear resistance, deformation resistance, and long-term stability, meeting the clinical needs of denture base use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the front side of the overall top outer structure of this utility model;

[0016] Figure 2 This is a three-dimensional view of the rear side of the overall top outer structure of this utility model;

[0017] Figure 3 This is a three-dimensional view of the bottom of the overall external structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the top of the outer top structure of this utility model;

[0019] Figure 5 A three-dimensional diagram showing the structure between the fixed component and the edge buffer of this utility model;

[0020] Figure 6 A three-dimensional diagram illustrating the structure of the edge buffer zone, die, and tooth groove of this practical tool;

[0021] Figure 7 For practical purposes Figure 6 The structure is magnified to display a three-dimensional image (A).

[0022] In the diagram: 1. Marginal buffer zone; 11. Gingival attachment point one; 12. Gingival attachment point two; 13. Tooth position groove; 2. Anterior tooth area; 3. Transitional lateral tooth area; 4. Tooth plate; 5. Fixation component; 51. Nut head; 52. Threaded rod; 6. Hanger. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] like Figure 6 and Figure 7 As shown, a wear-resistant and deformation-resistant denture resin base with surface hardening treatment includes an edge buffer zone 1. The edge buffer zone 1 includes a gingival attachment point 11, a gingival attachment point 2 12, and a tooth position groove 13. The gingival attachment point 11 and the gingival attachment point 2 12 are located in adjacent positions. The tooth position groove 13 is set on the top of the gingival attachment point 11 and the gingival attachment point 2 12. Both the gingival attachment point 11 and the gingival attachment point 2 12 are arc-shaped protrusions adapted to the shape of the oral gingiva. The cross-section of the gingival attachment point 11 and the gingival attachment point 2 12 is inverted U-shaped, which can accurately accommodate the residual natural tooth roots or artificial tooth abutments in the oral cavity, realize the initial positioning of the base in the oral cavity, and ensure that the anterior tooth area 2, the transitional lateral tooth area 3, and the molar 4 correspond one-to-one with the chewing areas of the anterior teeth, lateral teeth, and posterior teeth in the oral cavity, respectively, laying the positional foundation for the subsequent functional realization.

[0026] like Figure 1 and Figure 2 As shown, the front end of the edge buffer 1 is provided with an anterior tooth area 2, the middle and top of the side end of the edge buffer 1 is provided with a transitional lateral tooth area 3, and the top left and right rear ends of the edge buffer 1 are provided with a plate 4. The axis of the edge buffer 1, the anterior tooth area 2, the transitional lateral tooth area 3 and the plate 4 are longitudinally connected to the bottom axis of the edge buffer 1 through a fixing component 5. The top surfaces of the edge buffer 1, the anterior tooth area 2, the transitional lateral tooth area 3 and the plate 4 are all covered with a surface hardening layer. The surface hardening layer is a nano-ceramic modified resin coating. The nano-ceramic particles have high hardness characteristics, which can significantly improve the wear resistance of the coating and avoid wear on the base surface caused by long-term friction in the above high-frequency contact areas.

[0027] The surface hardening layer extends to the labial and buccal surfaces of the anterior tooth region 2, the proximal surfaces of the transitional tooth region 3, and the occlusal surfaces of the molars 4. The nano-ceramic particles have high hardness, which can significantly improve the wear resistance of the coating and prevent the base surface from being worn due to long-term friction in the above high-frequency contact areas.

[0028] Among them, the body of the edge buffer 1 is embedded with a medical glass fiber woven mesh, which covers the gingival attachment point area of ​​the edge buffer 1 to the root of the incisor 4, and is completely integrated with the resin body of the edge buffer 1. When the base plate is subjected to chewing pressure, the glass fiber woven mesh can disperse the stress through its own high strength characteristics, avoid the resin body from producing micro cracks or macro deformation due to excessive local stress, and extend the service life of the base plate.

[0029] Example 2:

[0030] like Figure 5 As shown, the fixing component 5 includes a nut head 51 and a threaded rod 52. The top end of the threaded rod 52 is fixedly connected to the bottom side of the nut head 51. The side wall of the threaded rod 52 passes through the inner axis of the edge buffer zone 1 and the die 4. The outer surface of the threaded rod 52 of the fixing component 5 is provided with a trapezoidal external thread. The inner axis of the edge buffer zone 1 and the die 4 is provided with a positioning hole that matches the threaded rod 52. The inner wall of the positioning hole is provided with an internal thread that meshes with the trapezoidal external thread. By using the trapezoidal external thread of the threaded rod to mesh with the internal thread of the positioning hole, the nut head 51 at the top is rotated until it is tightened. This can prevent the threads from loosening due to vibration during chewing, and ensure that the anterior tooth area 2, the transition lateral tooth area 3, the die 4 and the edge buffer zone 1 form a rigid whole, preventing relative displacement of each area.

[0031] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7 As shown, the sidewalls of the edge buffer zone 1 are provided with hooks 6 between adjacent groups. The hooks 6 are located at the adjacent edges of the sidewalls of each group of gingival attachment point 11 and gingival attachment point 12. The hooks 6 are used to assist in the fixation of the base in the oral cavity for long-term stability.

[0032] The hook 6 is a cylindrical structure used to fasten the special rubber band to the adjacent edge buffer 1. When in use, the two ends of the special rubber band are respectively put on the hook 6 of the adjacent edge buffer 1 (if it is a complete denture, it can be connected to other fixed structures in the oral cavity through the rubber band).

[0033] Working principle: such as Figures 1-7As shown, the marginal buffer zone 1 is first adapted to correspond with the alveolar ridge and gingival tissue of the oral cavity: the gingival attachment point 11 and the gingival attachment point 22 on the marginal buffer zone 1 are both inverted U-shaped arc-shaped protrusions. Their curvature and shape perfectly match the natural contour of the gingiva in the corresponding area of ​​the oral cavity, which can fit closely to the gingival surface and avoid gaps between the base and the gingiva (preventing food debris from accumulating); at the same time, the tooth position groove 13 at the top of the gingival attachment point 11 and the gingival attachment point 2 can accurately accommodate the remaining natural tooth roots or artificial tooth abutments in the oral cavity, realize the initial positioning of the base in the oral cavity, and ensure that the anterior tooth area 2, the transitional lateral tooth area 3, and the molar 4 correspond one-to-one with the chewing areas of the anterior teeth, lateral teeth, and posterior teeth in the oral cavity, respectively, laying the positional foundation for the subsequent functional realization;

[0034] Axial positioning and structural locking: After initial positioning, the edge buffer zone 1, anterior tooth zone 2, transitional lateral tooth zone 3, and die 4 are securely connected as a whole through fixing component 5.

[0035] Axis alignment and threaded engagement: The outer surface of the threaded rod 52 of the fixing component 5 is provided with a trapezoidal external thread. The threaded rod 52 is inserted into the positioning hole at the bottom axis of the edge buffer 1 and passes through the inner axis of the edge buffer 1 and the die 4 in sequence (the front tooth area 2 and the transition side tooth area 3 are aligned synchronously with the axis of the positioning hole through the integrated structure with the edge buffer 1). The trapezoidal external thread of the threaded rod engages with the internal thread of the inner wall of the positioning hole. The nut head 51 at the top is rotated until it is tightened. This can prevent the threads from loosening due to vibration during chewing and ensure that the front tooth area 2, the transition side tooth area 3, the die 4 and the edge buffer 1 form a rigid whole to prevent relative displacement of each area.

[0036] Structural integrity enhancement: The design of the fixed component 5 running through the core of the denture base can transmit the force generated by the anterior teeth 2 (cutting food) and the molars 4 (grinding food) during chewing to the marginal buffer zone 1, and then disperse it to the gums and alveolar ridge through the marginal buffer zone 1, avoiding local stress concentration that could lead to denture base breakage or deformation;

[0037] During daily use (chewing, speaking, etc.), the top surfaces and key contact surfaces (labial and buccal surfaces of anterior tooth area 2, transitional lateral tooth area 3, and incisor 4) are all covered with a nano-ceramic modified resin coating (surface hardening layer). The nano-ceramic particles have high hardness, which can significantly improve the wear resistance of the coating and prevent the base surface from being worn due to long-term friction in the above high-frequency contact areas. At the same time, the coating is tightly bonded to the base surface, which can prevent food residue from scraping and causing the coating to fall off during chewing.

[0038] The medical glass fiber woven mesh embedded inside the marginal buffer zone 1 extends from the gingival attachment point (critical area for force transmission) to the root of the incisor 4 (main area for chewing force) and is completely integrated with the resin body. When the base is subjected to chewing pressure (such as the vertical pressure generated when the incisor 4 grinds hard objects, or the horizontal tension generated when the anterior tooth area 2 is cut), the glass fiber woven mesh can disperse stress through its high strength properties, preventing the resin body from developing micro-cracks or macro-deformation due to excessive local stress (such as warping of the marginal buffer zone 1 due to long-term stress, or indentation of the root of the incisor 4 due to pressure), thus extending the service life of the base.

[0039] Assisted Stabilization: To ensure the long-term stability of the denture base in the oral cavity, auxiliary fixation is achieved through the hanging pins 6. The hanging pins 6 are cylindrical structures and are precisely positioned at the adjacent edges of the lateral walls of each set of gingival attachment points 11 and 12. This position is close to the edge where the denture base fits against the gum, making it easy to install a special elastic band. In use, the two ends of the special elastic band are respectively placed on the hanging pins 6 in the adjacent edge buffer zone 1 (for complete dentures, the elastic band can be connected to other fixed structures in the oral cavity; for partial dentures, it can be connected to adjacent natural teeth or implant attachments). The elastic tension of the elastic band generates a tightening force towards the gum line on the denture base, further restricting the horizontal displacement of the denture base during chewing movements (such as vertical movement when opening and closing the mouth) or speaking, avoiding chewing discomfort or pronunciation problems caused by a loose denture base. At the same time, the cylindrical structure of the hanging pins 6 ensures that the elastic band will not easily slip off after installation, ensuring the stability of the auxiliary fixation effect.

Claims

1. A surface-hardened, wear-resistant, distortion-resistant false tooth resin base for a denture, comprising a peripheral buffer zone (1), characterized in that: The edge buffer zone (1) includes a first gingival attachment point (11), a second gingival attachment point (12), and a tooth position groove (13). The first gingival attachment point (11) and the second gingival attachment point (12) are located in adjacent positions, and the tooth position groove (13) is located on top of the first gingival attachment point (11) and the second gingival attachment point (12). The front end of the edge buffer (1) is provided with an anterior tooth area (2), the middle part of the side end of the edge buffer (1) is provided with a transitional lateral tooth area (3), and the top left and right rear ends of the edge buffer (1) are provided with indenters (4). The axial part of the edge buffer (1), the anterior tooth area (2), the transitional lateral tooth area (3) and the indenter (4) are longitudinally connected to the bottom axis of the edge buffer (1) by a fixing component (5). The top surface of the edge buffer (1), the anterior tooth area (2), the transitional lateral tooth area (3) and the indenter (4) are all covered with a surface hardening layer, which is a nano-ceramic modified resin coating. The fixing component (5) includes a nut head (51) and a threaded rod (52). The top end of the threaded rod (52) is fixedly connected to the bottom side of the nut head (51), and the side wall of the threaded rod (52) penetrates the edge buffer zone (1) and the inner axis of the die (4). The sidewalls of the edge buffer zone (1) are provided with hooks (6) between adjacent groups.

2. The wear-resistant and deformation-resistant denture resin base with surface hardening treatment according to claim 1, characterized in that: The pin (6) is placed at the adjacent edge of the sidewall of each of the first gingival attachment point (11) and the second gingival attachment point (12).

3. The wear-resistant and deformation-resistant denture resin base with surface hardening treatment according to claim 1, characterized in that: Both the first gingival attachment point (11) and the second gingival attachment point (12) are arc-shaped protrusions adapted to the shape of the oral gingiva, and the cross-sections of both the first gingival attachment point (11) and the second gingival attachment point (12) are inverted U-shaped.

4. The surface-hardened, abrasion-resistant, distortion-resistant, denture resin base of claim 1, wherein: The surface hardening layer extends to the labial and buccal surfaces of the anterior tooth region (2), the proximal surfaces of the transitional tooth region (3), and the occlusal surfaces of the molars (4).

5. The surface-hardened, abrasion-resistant, distortion-resistant, denture resin base of claim 1, wherein: The outer surface of the threaded rod (52) of the fixing component (5) is provided with a trapezoidal external thread, and the inner axis of the edge buffer (1) and the die (4) is provided with a positioning hole that is adapted to the threaded rod (52). The inner wall of the positioning hole is provided with an internal thread that meshes with the trapezoidal external thread.

6. The wear-resistant and deformation-resistant denture resin base with surface hardening treatment according to claim 1, characterized in that: The hook (6) is a cylindrical structure used to fasten the special rubber band to the adjacent edge buffer (1).

7. The wear-resistant and deformation-resistant denture resin base with surface hardening treatment according to claim 1, characterized in that: The edge buffer (1) has a medical glass fiber woven mesh embedded inside its body, covering the gingival attachment point area of ​​the edge buffer (1) to the root of the molar (4), and is completely fused with the resin body of the edge buffer (1).

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