Abstract:

Objective

To evaluate the influence of chronic periodontitis on survival rates and bone resorption of dental implants.

Methods

Databases including Pubmedline， CBM， CNKI and Wanfang database were searched from inception to June 2013 for RCT study on chronic periodontitis patients with dental implants. According to the inclusion and exclusion criteria， these studies were screened， the data were extracted， and the methodological quality of the included studies was assessed.A Meta-analysis was performed by using RevMan5.0 software.

Results

A total of 5 studies were included， involving 252 implants in the chronic periodontitis group and 224 implants in the periodontal health group. Meta-analysis results showed that the survival rate of dental implants in periodontitis group and periodontal health group was significantly different ［MD=0.42， 95% CI （0.21，0.81）， P=0.01］. And statistical difference ［MD=2.26， 95% CI（0.54，3.98）， P=0.01］was also found in bone resorption.

Conclusions

Chronic periodontitis had significant effects on implant survival rate and bone resorption， and increased the risk of failure. According to limited studies included， inadequte time and incomprehensive evaluation index of this systematic review， the above conclusions still need to be validated by more high-quality studies.

Key words: Periodontal disease, Periodontitis, Dental implant, Survival rates, Bone resorption, Meta-analysis