TWM596056U - Emulating artificial tooth - Google Patents

Abstract

This creation is mainly set on the alveolar bone of the patient, and the alveolar bone is formed with a hollow alveolar corresponding to the shape of the root of the tooth. The artificial artificial tooth body includes: a base, a denture and a locking bone nail, wherein the base An embedded portion and a connecting portion located inside the hollow tooth slot are provided, the embedded portion has a three-dimensional surface that is exactly the same as the bone wall shape around the hollow tooth slot, and the connecting portion has a connecting surface on the side of the three-dimensional surface; The denture is provided on the connection surface of the base; and the locking bone nail is driven into the base from the outside of the alveolar bone, so that the locking bone nail connects the alveolar bone with the embedded part of the base Locked and fixed. This creation does not need to wait for osseointegration to occur, and the artificial artificial tooth body has the supportability to resist the bite force of chewing food, so that patients who have dental implants can eat food that requires a greater bite force when the implant is completed.

Description

Artificial tooth

This creation is about an artificial tooth that can be customized for different patients, especially a simulated artificial tooth that fully matches the shape of the patient's alveolar bone for stable connection.

The earliest treatment of edentulous teeth mostly uses movable dentures or fixed crowns and gums to treat patients with a wide range of edentulous teeth. Until the recent appearance of dental implant technology, patients with edentulous teeth can choose to perform single or multiple teeth. Or the implantation of the whole tooth.

For patients with healthy alveolar bones, the treatment is usually carried out by implanting the implant in the bone. This method is to implant the implant in the alveolar bone of the upper and lower jaw tissues to allow the implant to form a For artificial tooth roots, the shape, size and type of the implant will be selected according to the position of the missing tooth, with different surgical instruments and application methods to complete the implant. After the artificial tooth root is implanted, the artificial tooth is assembled and fixed on the artificial tooth root, so that the artificial tooth can be firmly supported by the artificial tooth root.

However, for patients with alveolar bone atrophy (alveolar bone has been absorbed and the basal bone is also absorbed to a very small amount), it is impossible to adopt the aforementioned artificial tooth root reconstruction on the alveolar bone, which generally must be reconstructed first Artificial alveolar bone can be implanted into alveolar bone in the future, but this method of using alveolar bone to reconstruct and increase bone not only has complicated surgical procedures and long operation time, but also must be customized for special oral cavity The situation in the office is that it is impossible to perform.

In addition, the direction and position of the implant is very important for the treatment of missing teeth. Inaccurate implants will cause improper bite stress and make the implants fall off easily. Therefore, perfect preoperative planning and precise surgery Drilling will be an important factor in improving the success rate of patients' dental implants.

However, both of the above two factors test the clinical experience and surgical skills of the dentist. If the stability of the free-hole drilling is insufficient, or the visual mastery of the three-dimensional space is poor, it may damage the facial nerve or cause bone fracture. .

Furthermore, the metal material of the implant is obviously different from the tissue of the alveolar bone, and it is not easy to tightly connect the two. Therefore, after the artificial tooth root is installed and positioned, it must wait an additional 3 to 6 months for the recovery time of bone integration. The regeneration of alveolar bone cells causes the alveolar bone to proliferate into the thread gap of the artificial tooth body. Therefore, the patient still cannot eat food that requires a large bite force during the recovery time of the implant.

In view of the current shortcomings such as implant implantation and alveolar bone reconstruction, the overall surgery completion time is relatively long, the doctor’s experience affects the success rate, and it cannot be applied to various missing teeth. It is necessary to innovate artificial teeth. Improve the aforementioned deficiencies.

The first purpose of this creation is to simulate artificial teeth when installation is complete without waiting for the occurrence of Osteointegration. Human-like real teeth have the support that can resist the bite force of chewing food, allowing patients with dental implants It can be used to eat foods that require greater bite force when the implant is completed, improving the inconvenience of waiting for bone integration time in traditional implants.

The second purpose of this creation is to simulate artificial teeth that can be installed with various hollow alveolar bone states. Alveolar bones of different positions and shapes such as incisors, canines or molars can be used to complete artificial teeth stably The installation improves that the traditional cylindrical implant cannot be installed on the alveolar bone with too small contact area, which results in insufficient support force, which greatly increases the scope of application of the artificial tooth body.

The third purpose of this creation is that the artificial tooth can be applied to patients with malocclusion, so that the artificial tooth can be set obliquely with the skewed permanent teeth, so that the denture can be aligned with the skewed permanent teeth to achieve the chewing action.

The fourth purpose of this creation is that the bases, locking bone nails, dentures and other components that make up artificial artificial teeth can be directly completed by using currently known biocompatible biomedical materials (such as zirconium dioxide and titanium alloys) Production and installation, no need to use additional innovative materials to achieve special conditions of use, so that dentists can quickly practice.

In order to achieve the foregoing purpose, the artificial artificial tooth body is mainly set on an alveolar bone of a patient, the alveolar bone forms a hollow alveolar corresponding to the shape of the root of the tooth, wherein the artificial tooth body includes a base, a A denture and a locking bone nail; the base is provided with an embedded part and a connecting part, the embedded part is arranged inside the hollow tooth slot, and has a three-dimensional surface which is exactly the same as the shape of the bone wall around the hollow tooth slot, The connecting portion has a connecting surface on the side of the three-dimensional surface; the denture is provided on the connecting surface of the base; and the locking bone nail is driven into the base from the outside of the alveolar bone, so that the locking The bone nail locks and fixes both the alveolar bone and the embedded portion of the base.

In a feasible embodiment, the height position of the connecting surface does not protrude from an open end surface of the hollow alveolar cavity; and the locking bone nail penetrates into a first side of the alveolar bone, the base and the A second side of the alveolar bone.

In addition, the artificial tooth further includes an auxiliary bone nail driven into the base from the outside of the alveolar bone, wherein the auxiliary bone nail and the locking bone nail are formed by the alveolar bone One side or opposite sides are used to penetrate and fix separately.

In the first embodiment, one of the locking bone nail and the auxiliary bone nail penetrates horizontally into the alveolar bone, and the other of the locking bone nail and the auxiliary bone nail penetrates diagonally into the Alveolar bone; and the locking bone nail and the auxiliary bone nail are arranged at a distance from each other along a longitudinal orientation. In the second embodiment, the penetration directions of the locking bone nail and the auxiliary bone nail are parallel to each other.

Furthermore, the denture includes a table portion and a tooth portion, the table portion has a first end and a second end on opposite sides, the first end is connected to the connecting surface and is connected to the patient's teeth The meat is adjacent, and the tooth is connected to the second end.

Wherein, the denture may further include at least one of a locking screw and a fixing member, the locking screw is penetrated between the support portion and the base, so that the support and the base are stable The tooth part is covered with the locking screw; the fixing part is threaded between the support part and the tooth part.

In addition, the first end of the abutment portion is configured with a seat body adjacent to the connecting surface, and the second end of the abutment portion is configured as an inclined block so that the tooth portion can extend in an inclined direction.

In a preferred embodiment, both the base and the denture of the present invention can be integrally formed and constructed by the same material.

The characteristics of this creation are based on the missing teeth of different patients, and are built with customized models, so that the base can meet the shape of the jaw bone of various patients with missing teeth, and according to the different shapes of the base, through at least one locking bone nail will The base and the alveolar bone are locked and fixed. Since the base completely conforms to the external shape of the alveolar bone to closely contact, there is no need to wait for the bone integration between the base and the alveolar bone after the installation is completed, that is, the base has Stable supportability improves traditional cylindrical implants that cannot be installed on alveolar bones where the contact area is too small, resulting in insufficient support, greatly increasing the scope of application of artificial teeth.

In order to facilitate a deeper and clearer understanding of the structure, use and characteristics of this creation, I will cite the preferred embodiment, which is explained in detail in conjunction with the drawings as follows:

Please refer to FIG. 1, this creation is to cut a tooth 10 inside a patient's oral cavity where the tooth is missing, so that an alveolar bone 20 covered by the tooth 10 is exposed, and then a simulated artificial tooth 30 is fixed It is set in the alveolar bone 20, wherein the alveolar bone 20 is formed into a hollow tooth groove 21 corresponding to the shape of the root of the original tooth body, and the hollow tooth groove 21 is gradually tapered from an open end surface 22 toward the inside to present a substantially Conical recess.

This creative artificial tooth 30 can be made in three different ways. The first one is to output a three-dimensional file after computer tomography, and then use 3D printing to make an artificial tooth model; the second is to cut the tooth 10 After the oral scan to obtain the three-dimensional file, the 3D printing is also used to make the artificial tooth model; the third is to cut the gum 10 and use the impression material to reprint the mold, and then use gypsum and other materials to make the artificial tooth body model.

The artificial artificial tooth 30 of this creation includes a base 31, a denture 32 and a locking bone nail 33; as shown in the figure, the base 31 is provided with an embedded portion 311 and a connecting portion 312, the embedded portion 311 is provided in Inside the hollow tooth slot 21, and has a three-dimensional surface 313 that is exactly the same as the bone wall shape around the hollow tooth slot 21, that is, the three-dimensional surface 313 completely conforms to the surface of the tapered cavity, and the connecting portion 312 There is a connecting surface 314 on one side of the three-dimensional surface 313 so that the connecting surface 314 is adjacent to the opening end surface 22. In a feasible embodiment of the drawings, the height position of the connecting surface 314 does not protrude from the open end surface 22 of the hollow tooth slot 21.

The denture 32 is disposed on the connecting surface 314 of the base 31. The denture 32 includes a support portion 320 and a tooth portion 321 forming an occlusal surface. The support portion 320 has a first end 322 on the opposite side and A second end 323, the first end 322 is connected to the connection surface 314, and is adjacent to the patient's gums 10, and the second end 323 is connected to the tooth portion 321. As shown in the figure, the base 31, the support portion 320 and the tooth portion 321 are fixed by an adhesive material (not shown).

As shown in the figure, the first end 322 of the abutment portion 320 is configured to contact the base 31 and the base 324 of the tooth 10, and the second end 323 of the abutment portion 320 is configured to contact the tooth portion 321 The top seat 325, and an outwardly extending contact plate 326 is formed between the base 324 and the top seat 325, and the tooth portion 321 is formed with a concave portion 327 to correspond to the outer shape of the top seat 325, and is formed by the tooth portion 321 The bottom surface is attached to the contact plate 326.

The locking bone screw 33 is driven into the base 31 from the outside of the alveolar bone 20, and the locking bone screw 33 penetrates into a first side of the alveolar bone 20, the base 31 and the teeth in sequence A second side of the slot bone 20 allows the locking bone screw 33 to lock and fix both the slot bone 20 and the embedded portion 311 of the base 31. Subsequently, a protruding portion of the locking bone screw 33 protruding outside the alveolar bone 20 may be removed, so that the locking bone screw 33 can be aligned with the surface of the alveolar bone 20 to form a continuous curved surface.

Please refer to FIG. 2 and FIG. 3, the artificial artificial tooth 30 further includes an auxiliary bone nail 34, the auxiliary bone nail 34 is also driven into the base 31 from outside of the alveolar bone 20 to fix, wherein, as shown in FIG. As shown in FIG. 2, the auxiliary bone nail 34 and the locking bone nail 33 are respectively penetrated and locked by opposite sides of the alveolar bone 20, and one of the locking bone nail 33 and the auxiliary bone nail 34 is The person penetrates the alveolar bone 20 horizontally, while the other of the locking bone nail 33 and the auxiliary bone nail 34 penetrates the alveolar bone 20 diagonally.

As shown in FIG. 3, the auxiliary bone nail 34 and the locking bone nail 33 are penetrated and locked by a single side of the alveolar bone 20, and the locking bone nail 33 and the auxiliary bone nail 34 are both The penetration directions are parallel to each other, and the locking bone nail 33 and the auxiliary bone nail 34 are arranged at a distance from each other along a longitudinal direction.

Please refer to FIGS. 4A to 4F. The embedded part 311 of the creative base 31 can be designed and manufactured according to the shape of the tooth root at different positions, and the locking bone nail 33 can also be based on different root shapes and the tooth groove The state of the bone 20 determines the quantity used and the location of the lock.

As shown in FIG. 4A and FIG. 4B, the incisors of a general patient belong to a single root structure, which can be locked at the central position of the single root structure, or can be spaced and locked in an up-down alignment position along a longitudinal direction. As shown in FIGS. 4C to 4E, some patients have small molars or large molars with a double root structure, which can be locked at the center of the top of the double root structure, or at the two roots of the double root structure, respectively. Or it can be locked at the two root positions of the double tooth root structure and three places at the top center. As shown in FIG. 4F, some patients have large molars with a ginseng root structure, which can be selected at the center of one of the ginseng root structures for locking.

Referring to FIG. 5, the denture 32 may further include a locking screw 328 and a fixing member 329. As shown in the figure, the locking screw 328 may be screwed from the top of the support portion 320 downward to the base The top of 31 makes the support portion 320 and the base 31 firmly combined, and the tooth portion 321 is over the locking screw 328; and the fixing member 329 is formed by the tooth portion 321 The side is penetrated so that the abutment portion 320 and the tooth portion 321 are screwed and fixed by the fixing member 329. In addition, as shown in the figure, the locking bone nail 33 may only penetrate into one side of the alveolar bone 20 and a part of the base 31 instead of penetrating the entire base 31.

In addition, if the original teeth corresponding to the missing tooth position of the patient are not aligned correctly, of course, the artificial tooth body created can also correspond to the original teeth arranged incorrectly, please refer to FIG. 6, the first end of the abutment portion 320 322 also has a base 324 adjacent to the connecting surface 314, and the second end 323 of the support portion 320 is configured as a top seat 325 inclined toward one side, so that the tooth portion 321 is installed on the support portion At 320 o'clock, it can extend in an oblique direction to align the original teeth.

Please refer to FIG. 7, in a preferred embodiment, both the base 31 and the denture 32 can be integrally formed from the same material to form a simulated artificial tooth 30, as shown in the figure, the simulated artificial tooth 30 has a double tooth root structure, therefore, two locking bone screws 33 must be used to carry out the locking at the front and back positions in the horizontal direction. In this embodiment, the two locking bone screws 33 are located in the tooth slots respectively The bones 20 are located on opposite sides of the bone 20 and are fixed to the alveolar bone 20 and the base 31 along different oblique directions.

In summary, the base 31 of the artificial artificial tooth 30 is at least a cone that completely conforms to the shape of the hollow tooth slot 21. Therefore, regardless of whether the patient is missing one or more of incisors, canines or molars The teeth, or the skew corresponding to the occlusal teeth, as long as the patients are simply missing teeth, the simulated artificial tooth body 30 can be used to complete the installation.

10: Teeth 20: Alveolar bone 21: hollow cog 22: Open end 30: artificial tooth 31: Dock 311: Embedded part 312: Connection 313: Three-dimensional surface 314: connection surface 32: Denture 320: Support Department 321: Teeth 322: the first end 323: Second end 324: Base 325: Top seat 326: contact plate 327: recess 328: locking screw 329: fixings 33: locking bone nail 34: auxiliary bone nail

FIG. 1 is a cross-sectional view of a first embodiment of a simulated artificial tooth creation; 2 is a schematic diagram of a second locking method of an artificial tooth; Figure 3 is a schematic diagram of the third locking method of the artificial tooth; 4A to 4F are reference diagrams of various artificial artificial tooth bodies with different missing teeth; 5 is a cross-sectional view of a second embodiment of the creation; 6 is a cross-sectional view of a third embodiment of the creation; and 7 is a cross-sectional view of a fourth embodiment of the creation.

10: Teeth

20: Alveolar bone

21: hollow cog

22: Open end

30: artificial tooth

31: Dock

311: Embedded part

312: Connection

313: Three-dimensional surface

314: connection surface

32: Denture

320: Support Department

321: Teeth

322: the first end

323: Second end

324: Base

325: Top seat

326: contact board

327: recess

33: locking bone nail

Claims (13)

A artificial artificial tooth body is provided on an alveolar bone of a patient. The alveolar bone forms a hollow alveolar corresponding to the shape of the root of the tooth. The artificial artificial tooth body includes: a base, an embedded part and a connecting part , The embedded portion is disposed inside the hollow tooth slot, and has a three-dimensional surface that is exactly the same as the shape of the bone wall around the hollow tooth slot, and the connecting portion has a connecting surface on one side of the three-dimensional surface; a denture, Provided on the connection surface of the base; and a locking bone nail driven into the base from the outside of the alveolar bone, so that the locking bone nail locks both the alveolar bone and the three-dimensional portion of the base Shut fixed. The artificial artificial tooth body according to claim 1, wherein the height position of the connecting surface does not protrude from an open end surface of the hollow tooth slot. The artificial artificial tooth body as described in claim 1, wherein the locking bone nail penetrates a first side of the alveolar bone, the base and a second side of the alveolar bone in sequence. The artificial artificial tooth body according to claim 1, wherein the artificial artificial tooth body further includes an auxiliary bone nail driven into the base from the outside of the alveolar bone and fixed. The artificial artificial tooth body as described in claim 4, wherein the auxiliary bone nail and the locking bone nail are penetrated and fixed by a single side or opposite sides of the alveolar bone, respectively. The artificial artificial tooth body according to claim 5, wherein one of the locking bone nail and the auxiliary bone nail penetrates the alveolar bone horizontally, and the locking bone nail and the auxiliary bone nail The other one penetrates the alveolar bone diagonally. The artificial artificial tooth body according to claim 5, wherein the penetration directions of the locking bone nail and the auxiliary bone nail are parallel to each other. The artificial artificial tooth body according to claim 5, wherein the locking bone nail and the auxiliary bone nail are arranged at a distance from each other along a longitudinal direction. The artificial artificial tooth body according to claim 1, wherein the denture includes a table portion and a tooth portion, the table portion has a first end and a second end on opposite sides, the first end It is connected to the connection surface and adjacent to the patient's gums, and the tooth is connected to the second end. The artificial artificial tooth body according to claim 9, wherein the denture further comprises a locking screw, the locking screw is penetrated between the support part and the base, so that the support and the base It is firmly combined, and the tooth covers the locking screw. The artificial artificial tooth body according to item 9 of the claim, wherein the denture further includes a fixing member, the fixing member is threaded between the support portion and the tooth portion. The artificial artificial tooth body as described in claim 9, wherein the first end of the abutment portion is constructed with a seat body adjacent to the connecting surface, and the second end of the abutment portion is constructed as an inclined block so that The tooth portion extends in an oblique direction. The artificial artificial tooth body according to claim 1, wherein both the base and the denture are integrally formed and formed by the same material.

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