Hollow abutment capable of connecting with interior of dental implant

Abstract

The invention discloses a hollow abutment capable of connecting with the interior of a dental implant. The hollow abutment is characterized in that an upper part of a repair part section (1) of the hollow abutment is a circular truncated cone of which sectional areas are increased from top to bottom; a lower part of the repair part section (1) is a regular eight-edge prism (1A) of which corners are cambered; the middle transition section (2) is a projecting circular truncated cone of which a side surface is cambered and sectional areas are decreased from top to bottom and is coated with a silver carrying TiO2 antibacterial coating; an upper part of an implant insertion section (3) is a circular truncated cone of which sectional areas are decreased from top to bottom and inclination is in a range of 10 to 12 degrees and an annular groove (3B) is arranged in the surface of the circular truncated cone of the implant insertion section (3); a silicone rubber gasket (3C) is embed into the annular groove (3B); and a lower part of the implant insertion section (3) is regular eight-edge prism (3A) of which corners are cambered. The hollow abutment has the advantages of good fretting damageresistance, good closure, strong corrosion resistance, good antibacterial property, good gum forming function and long service life.

Description

technical field [0001] The invention relates to a dental implant abutment for oral restoration. technical background [0002] With the development and improvement of osseointegration theory and decades of clinical practice, dental implants have become one of the key repair techniques for missing teeth. Compared with traditional removable dentures and fixed dentures, dental implants are beautiful and comfortable. High, chewing function stronger and other advantages. Although recent studies have shown that the five-year success rate of dental implants can be as high as 96.1%. However, with the further extension of the service time, the long-term success rate of dental implants has a further downward trend. The 16-year follow-up success rate in foreign countries is reported to be 82.94%, and the domestic 11-15-year follow-up success rate is reported to be 62.5%. In many cases of dental implant failure, the failure phenomenon such as the loose connection between the dental imp...

AI Technical Summary

Problems solved by technology

However, there are unavoidable micro-gaps in the contact interface of "abutment-implant", and the corrosive media (saliva, microorganisms, etc.) in the oral cavity can easily penetrate into this extremely small gap; Can be contaminated by saliva, blood, intraoperative fluids, etc., making it highly susceptible to corrosion

Also reduces the service life of the abutment

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