CN219021633U

CN219021633U - False tooth structure

Info

Publication number: CN219021633U
Application number: CN202223413085.5U
Authority: CN
Inventors: 刘芳; 万瑛
Original assignee: Quanzhou Dental Doctor Dental Clinic Co ltd
Current assignee: Quanzhou Dental Doctor Dental Clinic Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-05-16
Anticipated expiration: 2032-12-20

Abstract

The utility model discloses a false tooth structure, which comprises a body and a tooth root, wherein the body is arranged at the top of the tooth root, the tooth root comprises an upward protruding part, and a concave part which is used for being embedded with the protruding part is arranged at the lower side of the body; the outer wall of the body is provided with a first perforation communicated with the concave part, and the protruding part is provided with a second perforation which transversely penetrates through the first perforation; the tooth root fixing device further comprises a long nail which penetrates through the first perforation and the second perforation, and a locking structure used for fixing the body and the tooth root is arranged on the long nail. According to the utility model, the tooth root is circumferentially and externally processed to form the protruding part, and the concave part is internally processed in the false tooth, so that the false tooth can be sleeved on the protruding part, and most of the force born by the tooth root is downward fluffed.

Description

False tooth structure

Technical Field

The utility model relates to the technical field of false teeth, in particular to a false tooth structure.

Background

Dentures are what is commonly known as "dentures". As with "artificial leg", "prosthesis" and "prosthetic" are referred to as "prosthetic", the term "prosthetic" is meant to refer to the teeth that "obligate" a human. The medicine is a general term for a prosthesis produced after partial or complete teeth of upper and lower teeth are missing. The false tooth is divided into two types of removable and fixed ones. Fixed dentures (commonly known as "fixed dentures") are not intended to be worn by the patient themselves, while removable dentures (commonly known as "removable dentures") are intended to be easily worn by the patient.

In chinese patent CN214805584U and patent CN207768541U cited therein, two denture structures are disclosed, respectively, but the two dentures have the same point, that is, when the denture body is mounted on the residual tooth, the center of the residual tooth needs to be drilled, then the mounting structure is embedded into the residual tooth, and the supporting and fixing effects are provided by the residual tooth.

Firstly, for the residual teeth, the strength is far smaller than that of healthy teeth, especially for the old, so that under the condition that a hole enough for accommodating the lower mounting structure is drilled inwards at the center of the residual teeth, the structural strength of the residual teeth is greatly damaged, and the supporting strength of the false teeth is also insufficient; and secondly, after the denture body is installed on the residual teeth through the installation structure, a great part of the force born by the installation structure and the denture can be transmitted into the holes of the residual teeth to form a force from inside to outside, and the residual teeth do not have other protective supporting structures, so that the residual teeth are easily damaged and broken.

Disclosure of Invention

In order to solve at least one technical problem mentioned in the background art, an object of the present utility model is to provide a denture structure to rationalize a supporting structure and avoid damage to the residual teeth.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the false tooth structure comprises a body and a tooth root, wherein the body is arranged at the top of the tooth root, the tooth root comprises an upward protruding part, and a concave part which is used for being embedded with the protruding part is arranged at the lower side of the body; the outer wall of the body is provided with a first perforation communicated with the concave part, and the protruding part is provided with a second perforation which transversely penetrates through the first perforation; the tooth root fixing device further comprises a long nail which penetrates through the first perforation and the second perforation, and a locking structure used for fixing the body and the tooth root is arranged on the long nail.

Compared with the prior art, the utility model has the beneficial effects that: the tooth root is processed at the peripheral outer side to form the protruding part, and the concave part is processed in the false tooth, so that the false tooth can be sleeved on the protruding part, most of the force born by the tooth root is downward fluffed, and compared with the situation that the residual tooth is subjected to the internal outward force after the center of the residual tooth is hollowed out, the stress of the false tooth is more uniform, the damage to the tooth root is less, and the strength is more ensured.

In addition, the denture forms a surrounding mode for the tooth root, even if the tooth root is subjected to internal and external force, the tooth root can be comprehensively supported and protected by the denture, and in occlusion, the denture bears a part of supporting effect on the tooth root instead of being completely born by the tooth root, so that the structure strength is better, and the tooth root is better protected.

The long nails are used for forming a position fixing effect between the false teeth and the tooth roots, and are not used for bearing the support of the false teeth in use, so that excessive pressure cannot be caused to the tooth roots, and the tooth roots are not easy to damage.

Further, the number of the first perforations is two, and the two first perforations are respectively arranged on two opposite sides of the body, the first perforations are coaxial with the second perforations, the two first perforations are uniformly stressed front and back, and the fixing effect is better.

Further, the locking structure comprises threads arranged on the inner wall of the first perforation and the inner wall of the second perforation, the spike is in threaded connection with the first perforation and the second perforation, and the threaded connection structure is simple.

Further, the number of the spikes is two, and the spikes respectively extend into the second through holes through the first through holes; the locking structure comprises a stud and a screw hole, wherein the stud is arranged on one of the spikes, the screw hole is arranged on the other spike, the stud is in threaded connection with the screw hole, the bilateral spike is simple in rotation and fixation operation, and the fixation is stable.

Further, the number of the spikes is two, and the spikes respectively extend into the second through holes through the first through holes; the locking structure comprises a clamping pin arranged at the head part of the spike, the clamping pin is provided with a clamping part along the circumferential extension of the spike, the clamping part is provided with a butt surface which is propped against when two spikes are axially locked relatively, the bilateral spike is clamped and fixed, the operation is simple and quick, and the disassembly is also quick.

Further, a protrusion is arranged on the abutting surface to provide circumferential locking.

Further, the novel tooth root protection device further comprises a sleeve, a gap is reserved between the outer wall of the spike and the inner wall of the second perforation, the sleeve is sleeved outside the spike and fills the gap, support is provided for spike cladding, buffering is provided for the tooth root, and damage caused by direct contact of the spike with the tooth root is avoided.

Further, the novel nail comprises a sealing gasket, a nail cap is arranged at the tail end of the long nail, two sides of the sealing gasket respectively prop against the nail cap and the body, and the sealing gasket is used for protecting the body between the nail cap and the body and simultaneously providing a sealing effect.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the spike in example 3;

FIG. 3 is a schematic view of the spike of FIG. 2 from another perspective;

FIG. 4 is a schematic view of the spike of FIG. 2 in a locked configuration;

fig. 5 is an enlarged schematic view of a in fig. 4.

In the figure: 1. a body; 11. a recessed portion; 12. a first perforation; 2. root of tooth; 21. a protruding portion; 22. a second perforation; 3. a spike; 31. a nail cap; 32. a stud; 33. a screw hole; 34. a bayonet lock; 35. a clamping part; 36. an abutment surface; 37. a protrusion; 4. a sleeve; 5. and a sealing gasket.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, the present embodiment provides a denture structure, which includes a body 1, the body 1 is mounted on a tooth root 2, the tooth root 2 is a residual tooth on a gum, and the body 1 is fixed on the tooth root 2 through a spike 3 and a locking structure.

Specifically, in this embodiment, an upward protruding portion 21 is first polished around the circumference of the tooth root 2, an inward recess 11 is polished at the bottom center of the body 1, the body 1 is next to the tooth root 2 from top to bottom, the recess 11 is sleeved on the periphery of the protruding portion 21 downward to form a fitting, the inner peripheral wall of the recess 11 is in clearance fit with the outer peripheral wall of the protruding portion 21, and the horizontal cross section of the protruding portion 21 may be circular, so that the position of the body 1 may be adjusted conveniently, or square, so that the body 1 is positioned correctly conveniently.

After the body 1 is mounted on the tooth root 2, in order to achieve a fixing effect, a first perforation 12 which is transversely communicated with the concave part 11 is formed in the peripheral wall of the body 1, a second perforation 22 which transversely penetrates through the convex part 21 is formed in the convex part 21, the first perforation 12 is coaxial with the second perforation 22, and the spike 3 simultaneously penetrates through the first perforation 12 and the second perforation 22 and fixes the body 1 with the tooth root 2 through the locking structure.

Example 1:

the inner peripheral wall of the first through hole 12 and the inner peripheral wall of the second through hole 22 are respectively provided with an internal thread, the outer peripheral wall of the spike 3 is provided with an external thread, and the spike 3 is screwed into the first through hole 12 and the second through hole 22, so that a fixing effect is realized through threaded connection.

Example 2:

referring to fig. 1, the number of the first perforations 12 is two, and the two first perforations 12 are respectively disposed on two opposite sides of the body 1, the two first perforations 12 are coaxial with the second perforations 22, the number of the spikes 3 is also two, the two spikes 3 respectively pass through the two first perforations 12 from two sides into the second perforations 22, and the heads of the two spikes 3 are opposite.

The locking structure comprises a stud 32 axially arranged on the head of one spike 3 and a screw hole 33 axially arranged on the head of the other spike 3, the heads of the two spikes 3 are opposite and reversely rotated along the axial direction, so that the stud 32 is rotated into the screw hole 33 to realize the connection and fixation between the two spikes 3, and meanwhile, the tail parts of the two spikes 3 are provided with screw caps 31, and the screw caps 31 are propped against the outer wall of the body 1 to realize the fixation effect of the body 1 and the tooth root 2 through the spikes 3.

Example 3:

the number of the first perforations 12 is two, and the two first perforations 12 are respectively arranged on two opposite sides of the body 1, the two first perforations 12 are coaxial with the second perforations 22, the number of the spikes 3 is also two, the two spikes 3 respectively pass through the two first perforations 12 from two sides and enter the second perforations 22, and the heads of the two spikes 3 are opposite.

Referring to fig. 2 and 3, the locking structure includes a locking pin 34 disposed on the head of the spike 3, the locking pin 34 extends along the axial direction of the spike 3, and the front end of the locking pin 34 is provided with a locking portion 35 extending towards the circumferential direction of the spike 3, one side of the locking portion 35 facing the spike 3 is provided with a contact surface 36, two spikes 3 are axially opposite, the locking pins 34 on the two spikes 3 are staggered, and the two spikes 3 are reversely rotated along the axis, so that the two contact surfaces 36 are opposite, and when the two spikes 3 are pulled back in the axial direction, the two contact surfaces 36 are abutted against each other to avoid the separation of the two spikes 3, thereby realizing the axial locking effect, and meanwhile, the tail portions of the two spikes 3 are provided with a spike cap 31, the spike cap 31 is abutted against the outer wall of the body 1, thereby realizing the fixing effect of the spikes 3 to the body 1 and the body 2.

Referring to fig. 4 and 5, the number of the locking pins 34 is four, which are distributed in an annular array with the axis of the spike 3 as the center, and the two spikes 3 are abutted against each other by the abutment surfaces 36 on the four sets of the locking parts 35, so as to realize stable locking in the axial direction.

And the abutting surface 36 is provided with a strip-shaped protrusion 37, when the two spikes 3 are locked, the two protrusions 37 are abutted against each other, so that the circumferential locking capacity is further enhanced, and the two spikes 3 are prevented from easily and reversely rotating to unlock.

In the foregoing embodiment 1, embodiment 2, and embodiment 3, it is necessary to supplement that, the spike 3 is further sleeved with a sealing gasket 5, and when the spike cap 31 abuts against the outer wall of the body 1, the sealing gasket 5 abuts against between the spike cap 31 and the body 1, so that, on one hand, extrusion damage to the surface of the body 1 caused by the spike cap 31 is avoided, and on the other hand, a sealing effect is achieved on the circumferential gap of the first perforation 12, and foreign matters, liquid and the like are prevented from entering the perforation, so that subsequent corrosion and odor problems are caused, where the sealing gasket 5 is preferably made of TPU.

In the foregoing

embodiments

2 and 3, it is necessary to supplement that, in order to ensure the position stability of the spike 3 in the second through hole 22, avoid the movement during long-term use, and also avoid the problem of damage to the root 2 caused by uneven pressing of certain points on the inner peripheral wall of the second through hole 22 by the spike 3, a gap is formed between the outer wall of the spike 3 and the inner wall of the second through hole 22, a sleeve 4 is sleeved on the spike 3, the sleeve 4 is filled in the gap, and the outer peripheral wall of the sleeve 4 is uniformly attached to the inner wall of the second through hole 22, so as to realize the effects of stability and protection, wherein the material of the sleeve 4 is preferably TPU.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The false tooth structure comprises a body (1) and a tooth root (2), wherein the body (1) is arranged at the top of the tooth root (2), and is characterized in that the tooth root (2) comprises an upward protruding part (21), and a concave part (11) used for being embedded with the protruding part (21) is arranged at the lower side of the body (1); the outer wall of the body (1) is provided with a first perforation (12) communicated with the concave part (11), and the protruding part (21) is provided with a second perforation (22) which transversely penetrates through the first perforation; the tooth root fixing device further comprises a spike (3) which penetrates through the first perforation (12) and the second perforation (22), and a locking structure used for fixing the body (1) and the tooth root (2) is arranged on the spike (3).

2. A denture structure according to claim 1, wherein the number of first perforations (12) is two and is provided on opposite sides of the body (1), respectively, the first perforations (12) being coaxial with the second perforations (22).

3. A denture structure according to claim 1 or 2, wherein the locking structure comprises threads provided on the inner walls of the first perforation (12) and the second perforation (22), the spike (3) being screwed with both the first perforation (12) and the second perforation (22).

4. A denture structure according to claim 2, wherein the number of spikes (3) is two and extends through the first perforations (12) into the second perforations (22), respectively; the locking structure comprises a stud (32) and a screw hole (33), wherein the stud (32) is arranged on one of the spikes (3), the screw hole (33) is arranged on the other spike (3), and the stud (32) is in threaded connection with the screw hole (33).

5. A denture structure according to claim 2, wherein the number of spikes (3) is two and extends through the first perforations (12) into the second perforations (22), respectively; the locking structure comprises a clamping pin (34) arranged at the head of the spike (3), a clamping portion (35) is arranged on the clamping pin (34) along the circumferential extension of the spike (3), and a butt surface (36) propped against each other when the two spikes (3) are axially locked relatively is arranged on the clamping portion (35).

6. A denture structure according to claim 5, wherein said abutment surface (36) is provided with protrusions (37).

7. A denture structure according to claim 4 or 5, further comprising a sleeve (4) having a gap between the outer wall of the spike (3) and the inner wall of the second perforation (22), the sleeve (4) being threaded over the spike (3) and filling the gap.

8. The denture structure according to claim 1, further comprising a sealing gasket (5), wherein a nail cap (31) is arranged at the tail end of the spike (3), and two sides of the sealing gasket (5) are respectively abutted against the nail cap (31) and the body (1).