A nomogram prediction of peri-implantitis in treated severe periodontitis patients: A 1-5-year prospective cohort study

作者：Zhang, Haidong; Li, Wenjing; Zhang, Li; Yan, Xia; Shi, Dong; Meng, Huanxin^*

来源：Clinical Implant Dentistry and Related Research, 2018, 20(6): 962-968.

DOI：10.1111/cid.12686

• nomogram
• peri-implantitis
• periodontitis
• posterior
• residual pockets

Background: No nomogram of peri-implantitis was reported before which is valuable for risk-estimating, clinical decision-making, and better-patients-communicating.
Purpose: To identify the risk indicators and develop a nomogram prediction model of peri-implantitisin treated severe periodontitis patients.
Materials and Methods: A prospective study was conducted on 100 patients with 214 implants. Periodontal and peri-implant parameters were evaluated at implant surgery procedure (T1), and at follow-up (T2). Risk factors were analyzed by logistic regression analyses with generalized estimating equations. Nomogram was developed and the discriminatory ability of the model was analyzed.
Results: The incidence of peri-implantitis at patient-level and implant level were 16% and 11.2% respectively, with no implant lost. The variables associated with peri-implantitis were the PDT1 >= 6 mm (%) > 10%, the implant position, length, and diameter after adjusting for covariates. A nomogram prediction model of peri-implantitis were developed with factors of PDT1 >= 6 mm (%) > 10% and implant placed in posterior. The area under the ROC curves of stepwise model was 0.794.
Conclusions: The residual pockets and implants position were identified as predictors for the peri-implantitis. The nomogram can be used to estimate the risk of peri-implantitis in treated severe periodontitis patients.

• 出版日期2018-12
• 单位北京大学