A cross-sectional study for prevalence and risk factors of peri-implant marginal bone loss

Jui-Sheng Sun; Ke-Chun Liu; Min-Chih Hung; Hung-Ying Lin; Shu-Lin Chuang; Pei-Ju Lin; Jenny Zwei-Chieng Chang

doi:10.1016/j.prosdent.2023.11.002

A cross-sectional study for prevalence and risk factors of peri-implant marginal bone loss

J Prosthet Dent. 2023 Nov 29:S0022-3913(23)00722-9. doi: 10.1016/j.prosdent.2023.11.002. Online ahead of print.

Authors

Jui-Sheng Sun¹, Ke-Chun Liu², Min-Chih Hung³, Hung-Ying Lin³, Shu-Lin Chuang⁴, Pei-Ju Lin⁵, Jenny Zwei-Chieng Chang⁶

Affiliations

¹ Professor, Department of Orthopedic Surgery, College of Medicine, National Taiwan University Hospital, Taipei, Taiwan, ROC; and Department of Orthopedic Surgery, En Chu Kong Hospital, New Taipei City, Sanxia, Taiwan, ROC.
² Graduate Student, School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC.
³ Visiting Staff, Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan, ROC.
⁴ PhD/Assistant Researcher, Integrative Medical Database Center, Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan, ROC.
⁵ Master/Administrator, Integrative Medical Database Center, Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan, ROC.
⁶ Associate Professor, School of Dentistry, College of Medicine, National Taiwan University, Taipei,Taiwan, ROC; Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan, ROC. Electronic address: jennyzc@ms3.hinet.net.

PMID: 38036320
DOI: 10.1016/j.prosdent.2023.11.002

Abstract

Statement of problem: Progressive peri-implant marginal bone loss and peri-implantitis have become a growing problem, but cross-sectional studies on their prevalence and risk factors are sparse.

Purpose: The purpose of this cross-sectional clinical study was to investigate the prevalence of peri-implant marginal bone loss (MBL) and to identify systemic and local risk factors.

Material and methods: All adult patients who had received dental implants at the National Taiwan University Hospital (NTUH) during 2009 or 2010 were included. Their medical records were collected from the NTUH-integrative Medical Database. Consecutive follow-up radiographs were accessed for severity of MBL. The influence of each factor on MBL was estimated by using generalized estimating equations (GEEs).

Results: A total of 732 participants with 1873 implants were analyzed (mean follow-up: 5.30 years). The prevalence of MBL was 59.15% at the individual level and 49.55% at the implant level. The risk indicators identified for the presence of MBL were follow-up period of more than 2 years, diagnosis of diabetes within 12 months, radiation therapy (2 years after implant placement), implant location at maxillary canine (compared with mandibular molar), and implants from the Nobel Biocare brands (Brånemark System and NobelActive). A second multivariate GEE model confirmed the association of progressive MBL with implant location at the maxillary canine and mandibular incisor and implant brand or design.

Conclusions: The identified risk indicators for MBL were longer follow-up period, diagnosis of diabetes, radiation therapy, implant location at maxillary canine, and implant brand or design.