TW201417779A - Tooth root implant with different surface treatment areas - Google Patents

Abstract

The present invention relates to a tooth root implant with different surface treatment areas. The tooth root implant includes a coarse thread area, a dense thread area, a collar portion, a top end portion, and a coupling hole, wherein the coarse thread area is composed of threads with wider thread pitch, of which a surface is processed with sandblasting process and then processed with etching process treatment, and the surface is distributed with holes of different sizes; the dense thread area is composed of threads with narrower thread pitch, of which a surface is processed with etching process and distributed with numerous tiny holes thereafter; the collar portion is located at an upper edge of the dense thread area, of a surface is processed with etching process and distributed with numerous tiny holes thereafter; the top end portion is located at the uppermost edge of the tooth root implant, of which a surface is processed with etching process and distributed with numerous tiny holes thereafter; and the coupling hole is located at an inner edge of the top end portion, and is a blind hole provided with a positioning surface and an inner thread.

Description

Dental root implants with different surface treatment areas

The invention relates to a dental root implant with different surface treatment regions, in particular to a dental root implant which is convenient for facilitating screwing, reducing bone cell necrosis and enhancing bone cell grasping ability to achieve osseointegration.

In recent years, in the advertisements broadcast on TV channels, whether it is related to the cleaning of teeth or the surrounding goods, it is constantly increasing. On the one hand, it can remind people to pay attention to the cleaning of teeth, on the other hand, it also means that people Because the teeth are neglected for cleaning and maintenance, the number of people who have tooth decay or periodontal disease is increasing year by year. Generally, periodontal disease or tooth decay can be treated by initial treatment. However, if it is too serious, the teeth must be removed before installing the denture. In order to restore the function of chewing, the current method of installing dentures is not only fixed dentures and movable dentures, most people will choose fixed dentures, while fixed dentures will give priority to artificial implants, existing artificial implants. The technique is quite sophisticated, and there are many choices for the material of the root implant. The artificial implant method firstly fixes and sutures the metal artificial root with high compatibility of bone cells in the alveolar bone into the alveolar bone. After the bone cells in the alveolar bone and the artificial root are osseointegrated, the artificial denture can be completed by performing the subsequent installation of the denture.

In order to achieve initial stability, the mainstream artificial artificial roots are mostly designed with spiral teeth. The main purpose is to pre-drill an implant hole before the alveolar bone, and then insert it into the lock to achieve this purpose. The surface treatment technique of roughening the surface of the root to integrate the bone cells with the artificial root and root to achieve the final stability. However, in the process of implanting the artificial root into the alveolar bone, the artificial root and the cogging are often encountered. Bone cells in the bone The effect of osseointegration is not good and leads to failure. Most of the reasons for this are due to the roughening process on the surface of the artificial root, which causes the tooth on the root to be damaged, when the damaged tooth is damaged. When encountering the dense layer in the alveolar bone, it will be forced to lock in due to the difficulty of locking, increasing the friction, causing high heat to cause necrosis of the surrounding bone cells, and failing to achieve the purpose of osseointegration; another reason is the current artificial root The main method of implanting is sinking, that is, when implanting, the artificial root will be immersed below the alveolar bone below the gum. The top surface of the artificial root will be slightly lower than the alveolar bone surface of the gum. 2mm, this is because clinically, when the artificial root is implanted, it usually causes a little bone atrophy. The implant method is considered, but because the top surface and the collar of the artificial root are polished, although it is a biological The width prevents the bacteria in the oral cavity from going down the artificial root and infecting the bone cells, causing osseointegration failure. However, it is therefore impossible to pass the submerged implantation method to effectively make the bone cells in the alveolar bone. Grab the attachment, which causes the root of the tooth to be exposed as the gum is lowered, which affects the stability of the artificial root. In severe cases, it is necessary to perform an artificial bone re-operation.

The object of the present invention is to provide an effective surface roughening of the root implant into the implant hole, so that the bone cells and the root implant can achieve osseointegration, avoiding the frictional high heat caused by the hard lock, thereby causing bone cell necrosis. In order to achieve the above object, the dental root implant having different surface treatment regions of the present invention comprises a rough thread region, a snail region, a collar portion, a tip portion and a joint hole, wherein the coarse thread region is composed of a pitch. The thick screw has a tapered tapered design, and the surface is firstly subjected to a sandblasting process for the first stage of surface treatment. After the sandblasting process, the surface is distributed in a large number of sizes. A hole of about 10~30um, and then the surface of the second stage through the acid etching process After treatment, the surface after the acid etching process will have a hole of about 1~3um um in addition to the original pore size of about 10~30um. After the secondary process, the surface of the rough thread area is The pores of different types of coral reefs are distributed, that is, the surface treatment of the coarse screw area is completed; the dense thread area is composed of narrower and finer screw teeth, and the surface of the dense thread area is acidified. In the etching process, after the acid etching process, a large number of holes with a size of about 1~3um are distributed, that is, the surface treatment of the dense screw area is completed; the collar is located at the upper edge of the dense screw area, and the surface thereof must be subjected to acid etching. In the process, after the acid etching process, a large number of holes with a size of about 1~3um are distributed; the top part is located at the uppermost edge of the root implant, and the surface thereof must be subjected to an acid etching process, and the surface after the etching process is distributed in many sizes. The hole is about 1~3um; the joint hole is located at the inner edge of the top end portion, and the joint hole is a blind hole provided with a positioning surface and an internal thread.

The embodiments of the present invention are described in detail below with reference to the drawings. Therefore, only the steps related to the present invention are indicated in the drawings, and the steps shown are not drawn in the number, shape, size ratio, etc. at the time of implementation, and are described first.

Please refer to the first and second figures for a perspective view and a plan cross-sectional view of a specific embodiment of the present invention. The present invention is a dental root implant 1 having different surface treatment regions, and the dental root implant 1 has a metal columnar body having a predetermined length, and the metal is preferably titanium or titanium alloy, and the structure mainly includes coarse The threaded region 10, the snail region 20, the collar portion 30, the tip portion 40 and the coupling hole 50 are formed, wherein the thick thread region 10 is composed of a screw having a wide pitch and is distributed in the root implant. The area of the lower edge 2/3, the thick snail The lowermost end of the tooth zone 10 has a tapered tapered design, and the surface is firstly subjected to a sandblasting process for the first stage of surface treatment. After the sandblasting process, a plurality of holes having a size of about 10 to 30 um are distributed, and then the acid is passed through the acid. The surface treatment of the second stage of the etching process, after the surface of the acid etching process, in addition to the original pore size of about 10~30um, there will be more holes of about 1~3um in size, after the second process treatment, The surface of the coarse thread area 10 is distributed with composite pores of different sizes, such as the surface treatment of the coarse thread area 10; the 20 series of the dense thread area is composed of screw teeth with narrow pitch, distributed in the In the area of 1/3 of the upper edge of the root implant, the surface of the dense threaded area 20 is subjected to an acid etching process. After the etching process, a large number of holes having a size of about 1 to 3 um are distributed, that is, the dense thread is completed. The surface treatment of the region 20; the collar portion 30 is located at the upper edge of the snail region 20, and the surface thereof is subjected to an acid etching process, and a plurality of holes having a size of about 1 to 3 um are distributed on the surface after the etching process; the top portion 40 Located at the uppermost edge of the root implant 1 In the over-etching process, a plurality of fine holes having a size of about 1 to 3 um are distributed on the surface after the etching process; the bonding hole 50 is located at the inner edge of the top end portion 40, and the bonding hole 50 is blinded with a positioning surface and an internal thread. hole.

Please refer to the third figure. Generally, the human oral cavity is roughly divided into three parts. The uppermost layer is the oral soft tissue. The soft tissue is the gum. The lower layer of the gum is the first layer of the human alveolar bone. The bone cells in this layer are small and dense, and because of the higher density, the relative texture is also harder. The lowermost layer is the sponge bone. The bone cells in this layer are composite coral reef type multi-layer pore structure, also because of bone cells. Large and loose, relative bone hardness is also loose. When implanting teeth, a dental implant can be drilled on the oral alveolar, and then the coarse thread area 10 and the dense thread area 20 of the root implant 1 are used. The thread is screwed into the implant hole, and the oblique direction of the thick thread area 10 during the screwing process The tapered design and the surface are distributed with different sizes of holes, which is beneficial to the cone-shaped rotating cutting force when the root is implanted, which can reduce the friction and high heat caused by the hard lock and cause bone cell necrosis, and can retain and grasp more original The bone cells of different sizes distributed in the lowermost layer of the alveolar bone are in the cutting groove, which increases the initial stability and osseointegration ability after implantation.

The surface of the snail region 20 is different from the surface of the general thread at the same time. The process of acid etching and sand blasting will damage the tooth front. Because it is only subjected to the acid etching process, it is not easy to damage the tooth front of the snail area 20. And can maintain the integrity of the tooth front, in the process of screwing, can effectively cut and lock the bone cells with smaller volume, higher density and harder texture in the dense bone, the snail area 20 The surface, due to the tiny holes caused by the acid etching process, allows the bone cells in the dense bone to grasp and perform osseointegration.

The surface of the collar portion 30 and the tip end portion 40 is also subjected to an acid etching process, which is significantly different from the polishing method used for the collar and the tip of the general root implant, because the current method of implanting the teeth is mostly by the method of sinking. The entire root implant is screwed into the dense bone below the gum, so that the collar portion 30 and the distal end portion 40 are not in contact with the gums, but the collar portion 30 and the distal end portion 40 are stopped at the uppermost edge of the dense bone. ~2mm, then the surface of the collar portion 30 and the tip end portion 40, due to the tiny holes caused by the acid etching process, can allow the bone cells of the dense bone to grasp and perform osseointegration.

In the above, it is merely described that the present invention is an embodiment or an embodiment of the technical means for solving the problem, and is not intended to limit the scope of implementation of the present invention. That is, the equivalent changes and modifications made in accordance with the scope of the patent application of the present invention or the scope of the invention are covered by the scope of the invention.

1‧‧‧ root implants

10‧‧‧rough thread area

20‧‧‧Miro

30‧‧‧Neck section

40‧‧‧Top part

50‧‧‧Combination hole

First Figure A perspective view of a specific embodiment of the present invention

Second Figure Plan view of a specific embodiment of the present invention

Third Figure Schematic diagram of the use of a specific embodiment of the present invention

1‧‧‧ root implants

10‧‧‧rough thread area

20‧‧‧Miro

30‧‧‧Neck section

40‧‧‧Top part

50‧‧‧Combination hole

Claims (3)

A dental root implant having different surface treatment regions, the structure mainly comprising a thick screw region, a dense screw region, a collar portion, a tip portion and a joint hole, wherein the thick thread region is widened by a pitch The screw body is composed of a screw with a tapered shape at the lowermost end of the thick thread area, and the surface is firstly subjected to a sandblasting process for the first stage surface treatment, and the surface after the sandblasting process is distributed with a large number of apertures. The hole is then subjected to the second stage of surface treatment through the acid etching process. After the surface of the acid etching process, in addition to the hole with the large pore size, the hole with smaller pore diameter is added, and the composite hole with coral reef shape is presented. The snail region is composed of a screw with a narrow pitch and is distributed in the upper edge region of the root implant. The collar is located at the upper edge of the snail region, and the surface is also acid-etched with the snail region. In the process, after the acid etching process, a large number of holes are distributed on the surface; the top end is located at the uppermost edge of the root implant, and the surface and the snail area are also subjected to an acid etching process, and the surface after the etching process is distributed. Small holes are; located in the coupling hole of the edge portion of the top, the engaging hole is provided with a positioning surface and an internally threaded blind bore of persons. The dental root implant having different surface treatment areas as described in claim 1, wherein the coarse threaded area is distributed in two-thirds of the lower edge of the root implant, and the coarse thread area is first. The pores formed by the surface treatment are 10~30um, and the pores formed by the surface treatment in the second stage are 1~3um. The dental root implant having different surface treatment areas as described in claim 1, wherein the snail region is distributed in a region of one third of the upper edge of the root implant, and the snail region and the neck are The pores formed by the surface treatment of the ring portion have a pore diameter of 1 to 3 um.