Dental implant

Abstract

The invention relates to a dental implant. The dental implant comprises an implant body and an abutment connected with the body, wherein an annular groove region is formed in dental implant neck surface layers, which are in contact with soft tissues, of the body and the abutment; a porous layer region is arranged on the inner layer of the annular groove region; a plurality of spherical cavities are formed in the porous layer region and between annular grooves in the annular groove region; the spherical cavities which are in contact with each other communicate with each other; all the sphericalcavities which are in contact with the surfaces of the annular grooves are provided with openings in the surfaces of the annular grooves; and a plurality of axial pipes are arranged in the porous layer region, the lower portions of the axial pipes communicate with the spherical cavities, and the upper portions of the axial pipes are provided with openings in the surface of the abutment. Due to the structure of the porous layer region and a bioactive molecule combination, the soft tissue position of the neck of the implant is promoted to be stable in multiple ways, aesthetic defects caused bydisplacement of the neck of the implant to the root as well as reduction of bone absorption around the implant and shortening of the service life of the implant caused by the low bonding strength areavoided, and therefore, the implanting success rate is further improved.

Description

technical field [0001] The invention belongs to a dental restoration in the field of oral cavity, in particular to a dental implant. Background technique [0002] Implant dentures, as the main treatment for edentulousness and dentition defects, are gaining more and more attention. There are many studies on osseointegration between implants and bone tissue, and it is relatively mature. However, the combination of implant denture neck and soft tissue is relatively weak, and it is difficult to form a stable soft tissue barrier in the neck. There are relatively few related studies in this area. Poor bonding of the implant neck to the soft tissue provides an avenue for the development of infections including peri-implant mucositis and peri-implantitis. Among them, the incidence of peri-implant mucositis is as high as 43%; and untreated peri-implant mucositis can progress to peri-implantitis (incidence rate 22%). Infections at the soft tissue interface around implants may penetr...

AI Technical Summary

Problems solved by technology

[0006] Although simply forming a porous structure in the neck region of the implant can promote the growth and combination of cells and enhance the sealing of soft tissues to a certain extent, because the bottom of the depressed hole is in a closed shape, it cannot extend further radially to the inside, let alone Form the structure of communication between the holes, thus limiting the further improvement of the binding strength of fibroblasts; at the same time, the space between the holes is the weak area of ​​soft tissue bonding on the surface of the implant, and it is difficult to form a firm bond , easily lead to bacterial invasion and further invasion to the root

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