TWI607740B - Alveolar membrane - Google Patents

Description

Toothed membrane

The present invention relates to a cogging membrane for use in a dental implant procedure, and more particularly to a cogging membrane having a good fixation state.

In general, when the tooth falls off due to accidents, lesions or other reasons, in addition to aesthetic factors, it will affect chewing and bite. Therefore, the dentist usually advises the patient to make a denture to fill the missing tooth.

Traditional dentures are generally divided into active dentures and fixed dentures. Active dentures, as the name implies, can be taken in the mouth and taken out from the mouth at any time, and are often used on patients who have multiple teeth missing. The fixed dentures are fixed in the mouth of the patient and cannot be removed at will. Traditional fixed dentures are mostly bridged dentures. The dentist uses the support of the teeth on both sides to make three dentures, while the bridge supports the teeth on both sides. The disadvantage of bridged dentures is that they require a well-weared tooth to fit the denture.

Artificial dental implants are now the more common way to treat dental fillings. Artificial implants are a treatment for implanting artificial roots into the edentulous area. They have the advantage of high durability and no need to wear well-toothed teeth. However, the bone tissue in the edentulous area will gradually shrink over time. About half a year later, there will be about 40% atrophy, causing the alveolar bone to be too thin, which affects the stability of the implant, and even leads to planting. The failure of dental surgery.

To repair the problem of insufficient bone at the missing tooth, the dentist usually performs a bone surgery first. The so-called skeletal surgery is to fill the defect with a bone graft, such as an artificial tooth or an autologous bone, and then cover the bone graft with a alveolar membrane to maintain the desired shape and position.

The conventional alveolar film is a plate having a predetermined shape and has a connecting portion and a covering portion. The connecting portion is provided with a connecting hole for coupling with the artificial root; the covering portion has a plurality of holes for covering the bone graft. For details of the structure of the conventional cogging film, please refer to the Taiwan invention patents 201311218 and 201332523, the US invention patents 2014/0199657 and 2014/0349251, etc., and are not described herein.

It can be seen from the structure described above that the conventional cogging membrane is joined to the artificial root with one end at one end and the other end in a suspended shape without any support. Unstable state may affect the progress of bone surgery and even affect the success or failure of implant surgery.

The main object of the present invention is to provide a cogging membrane having a good fixed state.

To achieve the foregoing objective, the toothed groove film of the present invention comprises: a connecting portion having a through hole for passing through an artificial root; a covering portion having one end connected to the connecting portion and having a plurality of openings; and a fixing portion And disposed at the other end of the covering portion, having at least one claw having a tip for fixing to a predetermined portion of the human body tissue.

In an embodiment, the connecting portion, the covering portion and the fixing portion are a single piece.

In one embodiment, a flexure is provided at the intersection of the connecting portion and the covering portion, and the flexing portion is formed by a plurality of elongated holes arranged in a straight line.

In one embodiment, a flexure is provided at the intersection of the cover portion and the fixed portion, and the flexure portion is formed by a plurality of elongated holes arranged in a straight line.

In one embodiment, the paw of the fixation portion is inserted between the bone tissue or between the bone tissue and the soft tissue.

In one embodiment, the width of the connecting portion is gradually increased from one end to the covering portion until it is equal to the covering portion.

The cogging membrane of the present invention is fixedly fixed to the artificial root and the human tissue by the connecting portion and the fixing portion at both ends, so that a better fixing state can be produced, so that the bone graft can be stably fixed at a predetermined position thereof. In turn, the implant surgery can be completed smoothly.

In order to enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following for a brief description of the following:

Referring to FIG. 1 and FIG. 2, a toothed groove film provided by a preferred embodiment of the present invention is a single plate made of titanium metal, titanium alloy, or other suitable material, and has a connection in sequence. a portion 10, a cover portion 20 and a fixing portion 30, wherein:

The width of the connecting portion 10 is gradually increased from one end to the covering portion 20 until it is equal to the covering portion 20. The connecting portion 10 is provided with a through hole 11 for an artificial root 51 to pass through and is fixed to the missing tooth. The cover portion 20 has a predetermined curvature and is provided with a plurality of circular openings 21 thereon. The fixing portion 30 has three triangular claws 31 each having a tip end. In this embodiment, a flexure is respectively provided at the intersection of the connecting portion 10 and the covering portion 20 and the intersection of the covering portion 20 and the fixing portion 30. Each of the flexures is formed by three elongated holes 41, 42 arranged in a straight line, so that the connecting portion 10 is bent with respect to the covering portion 20 and the covering portion 20 with respect to the fixing portion 30 as required. angle.

Referring to FIG. 3, the alveolar film provided by the embodiment of the present invention is substantially the same as the conventionally known cogging membrane. The perforation 11 on the connecting portion 10 and the artificial tissue locked to the bone tissue 52 at the missing tooth are shown. The root 51 is bonded; the cover 20 covers the bone graft 54. The difference is that the claw 31 of the fixing portion 30 can be inserted between the bone tissue 52 (Fig. 4) or between the bone tissue 52 and the soft tissue 53 (Fig. 5). Therefore, the cogging membrane of the embodiment of the present invention is fixed by the connecting portion 10 and the fixing portion 30 at the two ends, respectively, and the artificial root 51 and the human tissue, so that a better fixation state can be produced, and the bone graft 54 is made. It can be firmly fixed at its predetermined position, so that the implant surgery can be completed smoothly.

The invention has the advantages of simple structure and high practicability, and the bone graft can be stably fixed at a predetermined position by means of fixing points on both ends of the alveolar film, thereby enabling the dental implant surgery to be successfully completed.

10 connecting portion 11 perforation 20 covering portion 21 opening 30 fixing portion 31 claw 41, 42 elongated hole 51 artificial root 52 bone tissue 53 soft tissue 54 bone graft

1 is a front elevational view of a preferred embodiment of the present invention. 2 is a perspective view of a preferred embodiment of the present invention showing the state of being combined with an artificial root. 3 is a cross-sectional view showing a state in which an artificial root and a alveolar film are attached to a missing tooth according to a preferred embodiment of the present invention. Figure 4 is a partial enlarged view of a preferred embodiment of the present invention showing the manner in which the fixation portion is inserted into the bone tissue. Figure 5 is a partial enlarged view of a preferred embodiment of the present invention showing the manner in which the fixation portion is inserted between the bone tissue and the soft tissue.

10 connecting portion 11 perforation 20 covering portion 30 fixing portion 31 claw 51 artificial root 52 bone tissue 53 soft tissue 54 bone graft

Claims (6)

A tooth groove film comprising: a connecting portion provided with a through hole for an artificial root to pass through; a covering portion connected to the connecting portion at one end and having a plurality of openings; and a fixing portion disposed at the covering portion The other end has at least one claw having a tip for fixing to a predetermined portion of the human body tissue; wherein the width of the connecting portion is gradually increased from one end to the covering portion until it is equal to the covering portion, A flexing portion is disposed at the intersection of the covering portion and the fixing portion; the flexing portion is formed by a plurality of elongated holes arranged in a straight line. The alveolar film according to claim 1, wherein the connecting portion, the covering portion and the fixing portion are a single piece. The alveolar film according to claim 1, wherein a flexure is provided at a junction of the connecting portion and the covering portion. The alveolar film according to claim 3, wherein the flexure is formed by arranging a plurality of elongated holes in a straight line. The alveolar membrane according to claim 1, wherein the claw of the fixing portion is inserted into the bone tissue. The alveolar membrane according to claim 1, wherein the claw of the fixing portion is inserted between the bone tissue and the soft tissue.