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Int J Oral Maxillofac Implants 34 (2019), No. 1 21. Mar. 2019
Int J Oral Maxillofac Implants 34 (2019), No. 1 (21.03.2019)
Page 187-196, doi:10.11607/jomi.6958, PubMed:30282087
An Evaluation of the Relationship Between Peri-implant Soft Tissue Biotype and the Severity of Peri-implantitis: A Cross-Sectional Study
Isler, Sila Cagri / Uraz, Ahu / Kaymaz, Ozlem / Cetiner, Deniz
Purpose: This cross-sectional study aimed to analyze the relation between peri-implant soft tissue biotype (STB) and different levels of peri-implantitis severity, and to identify the possible risk indicators that affect the severity of peri-implantitis with regard to STB around dental implants.
Materials and Methods: Eightyseven patients with 229 implants were diagnosed with peri-implantitis and recruited to the study. Clinical and radiographic parameters including Plaque Index (PI), probing depth (PD), bleeding on probing (BOP), gingival/ mucosal recession (GR/MR), clinical attachment level (CAL), and marginal bone loss (BL) were analyzed. The periodontal status was assessed, and the levels of peri-implantitis severity were defined. These parameters were compared among the peri-implant STB groups (thick and thin biotype). To evaluate the effect of possible risk indicators on the levels of severity of peri-implantitis, univariate and multivariate logistic regression analyses were conducted for thick and thin biotype groups.
Results: The mean values of BOP, MR, CAL, and marginal BL were significantly lower for the thick group compared with the thin group (P < .05). For PI and PD values, no significant differences were found between the groups (P > .05). Moreover, multivariate analysis revealed statistically significant associations between peri-implantitis severity and the risk indicators of maintenance therapy compliance and current periodontitis for the thin group (P < .05).
Conclusion: The thin biotype could be more prone to an increase in the severity of peri-implantitis. Maintenance therapy compliance and current periodontitis could be important risk indicators that affect the progression of the severity of peri-implantitis for implants where keratinized mucosa is thin or absent.
Keywords: keratinized mucosa thickness, maintenance, peri-implantitis, periodontitis, risk factors