JPH04105648A - Artificial tooth for dental prosthesis and its makufacture - Google Patents

Abstract

PURPOSE: To manufacture an artificial tooth within a short time, stabilize an extracted tooth at low cost, and replace it with an efficient tooth by constituting the artificial tooth of an elastic bag surely sealed by a crown and a filing part formed by filling a plastic material so as to be fitted for the shape of an alveolar. CONSTITUTION: An artificial tooth 10 is composed of a crown 12, an elastic bag 14 surely sealed by the crown 12, and a filling part formed by filling a plastic material so as to be fitted for the shape of an alveolar 18. The elastic bag 14 is hardened, when it is fitted for the alveolar 18, and includes an air/liquid discharge means 40 for discharging the air pressure retention and the liquid retention in a space between the elastic bag 14 and the bottom of the alveolar 18. The elastic bag 14 is heated till becoming such a state as being fitted for the alveolar wall and hardened by cooling after that, the crown 12 and the heated elastic bag 14 are mounted on the alveolar 18, the air is injected by passing through the opening of the crown 12 so as to swell the heated elastic bag 14 fitted for the alveolar 18, and the air/liquid retained in the bottom of the alveolar 18 are discharged. A plastic material being heated and passing through the opening of the crown 12 is injected so as to fill the alveolar 18, form the hardened artificial tooth 10 in the alveolar, and fix the artificial tooth 10 in the extracted alveolar 18 so that the artificial tooth is prepared.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an artificial tooth for dental prosthesis, and more particularly to an artificial tooth for replacing a natural tooth with an artificial tooth and a method for adjusting the same.

[Prior Art] Generally, a tooth is composed of three parts: an exposed crown part, a tooth root part embedded in the jawbone, and a tooth neck part slightly contracted by a rubber layer.

Teeth have three layers: dentin, which forms the main body of the tooth, hard enamel, which covers the dentin in the crown, and pulp, which is rich in connective tissue with nerves and blood vessels. ing.

These blood vessels and nerves are communicated to the tooth through the apical foramen. The periodontal ligament is arranged in the alveolus and is embedded within the cementum of the alveolar bone to which the tooth is anchored.

[Problem to be Solved by the Invention 1] However, in the conventional configuration described above, when such a tooth is extracted and replaced, a long and expensive operation is generally performed, and furthermore, each individual It is generally accepted that natural teeth are not used.

The cost of such dental procedures is high (in some cases extremely expensive), and when replacing a natural tooth, it is often difficult to replace the tooth in a way that prevents it from becoming unstable and poorly anchored. Or, because it is inexpensive, it may result in defective teeth as described above, which is not preferable.

The present invention has been made to solve the above-mentioned problems, and its purpose is to stabilize extracted teeth in a short period of time, almost immediately, and at low cost, so that the teeth can be effectively restored. The purpose of the present invention is to provide an artificial tooth for dental prosthesis to replace the dental prosthesis.

Furthermore, the purpose of the artificial tooth is to effectively replace the original tooth, and to ensure that the tooth has good appearance and strength.

[Means for Solving the Problems] According to the present invention, the tooth crown includes a tooth crown, an elastic bag securely sealed to the tooth crown, and a filling part filled with a plastic material to conform to the shape of the alveolus. , the elastic bag being hardened when fitted into the alveolus, and comprising air/liquid ejection means for discharging air pressure and liquid retention in the space between the elastic bag and the bottom of the alveolus. There is. The elastic bag is then heated to a state where it is to be fitted to the alveolar wall and then hardened by cooling, the crown and the heated elastic bag are placed on the alveolus, and the heated elastic bag is fitted to the alveolar wall. Air is injected through the opening in the crown to inflate the bag, and air/liquid retained at the bottom of the alveolus is expelled, filling the alveolus and forming a hardened artificial tooth within the alveolus. This is a method of preparing an artificial tooth in which a heated plastic material is injected and filled through an opening in the crown of the tooth in order to fix the artificial tooth in the tooth socket created by extraction.

[Example] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

The artificial tooth according to the present invention is constructed to have the same excellent durability and characteristics as natural teeth, and the artificial tooth is manufactured so as to be easily installed in the alveolus of the extracted tooth, and further, It can be manufactured in a very short time after the natural tooth has been extracted.

The cost of such dental surgery, in turn, results in significant savings for individuals, which are now typically 110 times less than the cost of replacing an extracted tooth.

According to the present invention, as an important and necessary feature for the individual, the patient can replace the extracted tooth with a fully effective tooth in a fraction of the time required to date. Obtainable.

Teeth with the novel function can be fixed in the socket within about an hour and a half.

According to the present invention, the bag fitted to the replaced tooth, i.e. the crown and the socket of the extracted tooth, are generally fabricated in one process using the same material.

The crown part and the elastic bag are individually fabricated using different materials, and are sealed and filled so as to fit into the tooth socket from which the tooth has been extracted. Further, the present invention is intended to be able to be replaced immediately after a tooth is extracted, and also to be replaced even after a long period of time has passed since a tooth has been extracted.

In such cases, a minor surgery by a doctor is required to remove the skin and gums covering the tooth socket caused by tooth extraction.

If the alveolar wall is damaged or the alveolus is significantly shallowed, the alveolus is expanded according to known dental prostheses or a groove is made deeper in the alveolar wall.

In the crown and bladder method, a special plastic material is die cast to form the crown and bladder into a one-piece structure. Thus, the crown is made of a thicker part of the plastic material, and the elastic bag is made of a thinner part of the material, which are heated to conform to the alveolar wall of the extracted tooth.

If a single piece is formed, the artificial tooth, ie the crown and elastic bag, is sealed and cut so that the ends of the bag can fit with the alveolar wall of the extracted tooth.

Before the elastic bag seals the cut end, an air/liquid evacuation means consisting of a conduit and a head is placed on the bottom of the elastic bag to effect the seal.

According to the invention, the elastic bag is preferably manufactured using a plastic material, which can be softened by heating to fit the alveolar wall of the extracted tooth and can be bonded by cooling. This is because it is compatible with the alveolar wall.

As mentioned above, the elastic bladder is cured with the crown in a mold before use.

Immediately prior to use, the elastic bag is heated so that it conforms to the alveolar wall of the extracted tooth.

The artificial tooth according to the present invention consists of a crown, an elastic bag reliably sealed to the crown, and a filling part filled with a plastic material so as to be compatible with any shape of the alveolar wall.

In FIG. 1, 18 is the alveolus of the extracted tooth,
A support material 8 is placed around the alveolus 18, and the artificial tooth IO is implanted into the alveolus 18. The support member 8 is attached to the tooth row around the alveolus 18 and to the maxilla 30 or the mandible 28.

As shown in FIG. 4, the crown 12 of the artificial tooth 10 is
After the occlusal test performed for the artificial tooth IO, it is installed inside the support 8. In order to make the alveolar wall 20 and the elastic bag 14 flexible and compatible, the crown L2 is provided with an air pressure regulating valve 13 for making the elastic bag 14 flexible and inflating it by suction. Air pressure is maintained until the elastic bag 14 is hardened.

In order to prevent air pressure and liquid from building up at the bottom of the alveolus 18, it is necessary to provide an elastic bag and teeth with air/liquid evacuation means as shown in FIGS. 4-6.

As shown in FIGS. 4-6, the air/liquid evacuation means 40 includes a conduit 42 having a head 44 sealed to the bottom of the elastic bag 14 and a conduit 42 at the root of each extracted tooth.
Two apertures are included.

After the elastic bag 14 is hardened, the discharge valve 15 is opened and air is discharged. Then, the liquid plastic material passes through the air regulating valve 13 and is injected so as to completely fill the hardened elastic bag 14. Excess liquid plastic material is discharged through an overflow valve 15.

After the air and fluid retention has been expelled, the conduit 42 is temporarily occluded and then, if the dental socket is found satisfactory by the clinician, the conduit 42 is permanently sealed in a manner similar to a root canal. be done.

Conduit 42 is constructed using any compatible plastic material.

In FIG. 5, the heated elastic bag 14 is inflated by the air that has passed through the air regulating valve 13 being sucked in by the pump. As shown by the expansion line 25, air is sucked in and the elastic bag is inflated to fit the alveolus and alveolar wall of the extracted tooth.

Figures 2A and 2B show that the tooth used in the present prosthesis consists of a two-element unit, with the elastic bag 14 and the tooth base 12 being made of dissimilar materials in positions 17, 19, 21° and 23.
are connected to become one body.

Dental crown 12 can be made from a material selected from the group consisting of plastic, iron, gold, silver, titanium, and porcelain. The elastic bag 14 can be inflated to fill any alveolus of the extracted tooth, be reliably adhered to the alveolar wall, and can be adapted to the alveolar wall of the extracted tooth. It can be made from plastic material. The tooth lO in Figure 2A is used to replace an extracted molar tooth, and the tooth lO in Figure 2B is used to replace an extracted molar.
is used for incisors and large teeth.

The teeth shown in Figures 3A and 3B are examples of one-piece teeth that can be used to replace molars and incisors, respectively; Both the crown 12 and the elastic bag 14 are made of the same material.

As shown in FIG. 6 (after the liquid plastic has been cured and molded into the tooth elastic bladder 14, the support material 8 is removed, the excess from the overflow valve 15 is discarded and the injection valve 13 is The surfaces of both areas are smoothed and polished to ensure tooth occlusion.

Effects of the Invention The artificial tooth according to the invention as described above is operational and exhibits better effects than the natural tooth it replaces. The artificial teeth are chewed, cleaned, polished, and reworked using plastic materials, and are stronger and less susceptible to damage than natural teeth.

The artificial tooth of the present invention can be manufactured using any material approved by the dental association, and the elastic bag has elasticity and can be molded by cooling to ensure compatibility with the alveolar wall. It needs to be manufactured using a material that has.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of one embodiment of the present invention, showing that a support material is placed around the alveolus in which the artificial tooth is placed, and FIGS. 2A and 2B are , An explanatory diagram showing the back and front sides of an artificial tooth consisting of two elements, Part 3
Figures A and 3d are explanatory views, not showing the back and front sides, of an artificial tooth consisting of one element, Figure 4 is a side view of the artificial tooth placed in the tooth socket after tooth extraction, and Figure 5 is an illustration of the elastic bag and air/ Figure 4 is a side view of the artificial tooth showing that the liquid discharging means and the elastic bag are inflated in various states to fit into the extracted tooth socket, and Figure 6 is a side view of the artificial tooth that is completely attached to the extracted tooth socket. FIG. 6 is a side view of the fixed artificial teeth shown in the fourth and fifth figures. 10...Artificial tooth 14...Elastic bag 20...Alveolar wall 42...Conduit 12...Tooth crown 18...Bacterial species 40...Air/liquid discharge means 44...Head Figure Figure 2A Figure 1-3A Figure 2B Figure 3B Figure Z Patent applicant address: 4 Center Doby Lane, Bruckfield, CT, 06805, United States of America Name: Klaus Zee Mizufuna Nationality: United States of America

Claims (1)

[Scope of Claims] 1. Consisting of a tooth crown, an elastic bag securely sealed to the tooth crown, and a filling part filled with a plastic material to conform to the shape of the alveolus, the elastic bag being and is characterized in that it comprises air/liquid ejection means for ejecting air pressure and liquid retention in the space between the elastic bag and the bottom of the alveolus. Artificial teeth for dental prosthetics. 2. The artificial tooth for dental prosthesis according to claim 1, wherein the elastic bag is made of a material that is bulged to fill the alveolus formed by tooth extraction and can be reliably adhered to the alveolar wall. 3. The artificial tooth for dental prosthesis according to claim 1, wherein the elastic bag is made of a material that is compatible with the alveolar wall. 4. The artificial tooth for dental prosthesis according to claim 1, wherein the tooth crown and the elastic bag are made of the same material. 5. The artificial tooth for dental prosthesis according to claim 1, wherein the crown is made of a material selected from the group consisting of plastic, iron, gold, silver, titanium, and porcelain. 6. The air/liquid ejection means comprises elastic tubes each having a head sealed at the bottom of the elastic bag and a tube opening for each elastic tube in the crown. 1. The artificial tooth for dental prosthesis according to 1. 7. A method for preparing an artificial tooth for dental prosthesis consisting of a tooth crown that can be reliably fitted into the tooth socket after tooth extraction and an elastic bag fixed to the tooth crown, wherein (a) the elastic bag is attached to the alveolar wall; (b) said crown and heated elastic bag are placed in said alveolus; (c) said heated elastic bag is adapted to fit said alveolus; (b) said crown and heated elastic bag are placed in said alveolus; Air is injected through the opening in the crown to inflate the bag; (d) air/liquid retained at the bottom of the alveolus is expelled; (e) the alveolus is filled and the alveolus is A prosthetic dental prosthesis, characterized in that a heated plastic material is injected and filled through the opening of the crown in order to form a hardened artificial tooth inside and fix the artificial tooth in the socket of the extracted tooth. How to prepare teeth.