J Korean Acad Prosthodont.  2019 Jan;57(1):8-17. 10.4047/jkap.2019.57.1.8.

Prevalence and risk factors of peri-implantitis: A retrospective study

• Lee SE
• Kim DY
• Lee JB
• Pang EK

• KMID: 2431996
• DOI: http://doi.org/10.4047/jkap.2019.57.1.8

Abstract

PURPOSE
The study analyzed the prevalence of peri-implantitis and factors which may have affected the disease.
MATERIALS AND METHODS
This study based on medical records and radiographs of 422 patients (853 implant cases) who visited Ewha Womans University Mokdong Hospital Dental Center from January 1, 2012 to December 31, 2016. Generalized estimation equations (GEE) was utilized to determine the statistical relationship between peri-implantitis and each element, and the cumulative prevalence of peri-implantitis during the observation period was obtained by using the Kaplan Meier Method.
RESULTS
The prevalence rate of peri-implantitis at the patient level resulted in 7.3% (31 patients out of a total of 422 patients), and at the implant level 5.5% (47 implants out of a total of 853 implants). Sex, GBR, guided bone regeneration (GBR) and functional loading periods had statistical significance with the occurrence of peri-implantitis. Upon analysis of the cumulative prevalence of peri-implantitis in terms of implant follow-up period, the first case of peri-implantitis occurred at 9 months after the placement of an implant, and the prevalence of peri-implantitis showed a non-linear rise over time without a hint of a critical point.
CONCLUSION
The prevalence of peri-implantitis at the patient level and the implant were 7.3% and 5.5%, respectively. Male, implant installed with GBR and longer Functional Loading Periods were related with the risk of peri-implantitis.

Keyword

Peri-implantitis; Prevalence; Retrospective study

MeSH Terms

Bone Regeneration
Female
Follow-Up Studies
Humans
Male
Medical Records
Methods
Peri-Implantitis*
Prevalence*
Retrospective Studies*
Risk Factors*