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BACKGROUND A study was made to evaluate peri-implant conditions in compliers and erratic compliers with peri-implant maintenance therapy (PIMT), and to assess the role of site-specific confounders. METHODS Erratic PIMT compliers (EC) were defined as presenting attendance < 2x/year, while regular compliers (RC) attended ≥ 2x/year. Generalized estimating equations (GEE) were employed to perform a multivariable multilevel analysis in which the peri-implant condition was established as dependent variable. RESULTS Overall, 86 non-smoker patients (42 RC and 44 EC) attending the department of periodontology of the Universitat Internacional de Catalunya were recruited consecutively on a cross-sectional basis. The mean period of loading was 9.5y. An implant placed in an erratic patient has 88% higher probability of presenting peri-implant diseases versus RC. Furthermore, the probability of diagnosis of peri-implantitis was significantly higher in EC vs RC (OR 5.26; 95% CI: 1.51 - 18.29) (p = 0.009). Among other factors, history of periodontitis, non-hygienic prosthesis, period of implant loading and Modified Plaque Index (MPI) at implant level were shown to significantly increase the risk of peri-implantitis diagnosis. Although not associated with peri-implantitis diagnosis risk, keratinized mucosa (KM) width and vestibular depth (VD) were significantly associated to plaque accumulation (mPI). CONCLUSIONS Compliance with PIMT was found to be significantly associated with peri-implant status. In this sense, attending PIMT < 2x/year may not be sufficient to prevent peri-implantitis. These outcomes should be limited to a non-smokers population. This article is protected by copyright. All rights reserved. |
