Abstract:

Dental implantology has developed rapidly for over half a century, since pure titanium(99.7%) dental cylindrical threaded implants were exploited and osseointegration was introduced in 1960s by Prof. Brånemark. The long term retention rates of 10 years or more are over 95%. However, the biological complications jeopardize the long term effects of dental implant treatment seriously. The prevalence of dental implant biological complications varies greatly among different reports resulting from the disparities on the definitions of dental implant biological complications. After analyzing and summarizing the major opinions proposed internationally in recent years, the consensus for the definition of dental implant biological complications has been reached. Generally the dental implant biological implications can be classified into early stage(before restoration) biological complications and late stage(after restoration) biological complications. The early stage biological complications include acute and chronic infections, pain, soft tissue deficiency, and osseointegration failure, etc. The late stage complications include peri-implant diseases(peri-implant mucositis and peri-implantitis), soft tissue deficiency around implant, implant loosening and dropping off, etc. The various risk factors related to different dental implant biological complications, the strategies of the prevention and treatment for the dental implant biological complications have been discussed comprehensively, and the consensus has been reached. It is aimed to advocate the dentist to pay more attention to the early prevention of the biological implant complications, to promote more researches on the implant biological complications, and to help elevate the level of dental implantology in our country.

Key words: dental implant, dental implant complications, dental implant failure, prevention and treatment of dental implant complications