Prevalence and Risk Indicators of Peri-Implant Diseases in China: A Multicenter Cross-Sectional Study.

AIM: To evaluate the prevalence and risk indicators of peri-implant diseases in a randomly selected Chinese population.

MATERIALS AND

METHODS

A total of 819 patients with 1412 implants from eight university hospital databases were clinically and radiographically evaluated along with medical records to assess the prevalence of peri-implant diseases. Potential risk/protective indicators were explored using multilevel mixed-effects logistic regression analysis.

RESULTS

According to the 2017 EFP/AAP World Workshop case definitions, the prevalence of peri-implant mucositis at the subject and implant level was 36.4% and 31.3%, respectively. The prevalence of peri-implantitis at the subject and implant level was 4% and 3.3%, respectively. History of periodontitis and heavy smoking were identified as risk indicators for peri-implantitis in the final model.

CONCLUSION

In this randomly selected diverse patient sample within China, the prevalence of peri-implant diseases was moderately high (40.4%) after a mean follow-up duration of 6.65 ± 1.18 years post loading.