@article {6598,
	title = {Occurrence of peri-implant diseases and risk indicators at the patient and implant levels: A multilevel cross-sectional study},
	journal = {J Periodontol},
	volume = {89},
	number = {9},
	year = {2018},
	note = {<p>Pimentel, Suzana PShiota, RobertoCirano, Fabiano RCasarin, Renato C VPecorari, Vanessa G ACasati, Marcio ZHaas, Alex NRibeiro, Fernanda VengJ Periodontol. 2018 Sep;89(9):1091-1100. doi: 10.1002/JPER.17-0599. Epub 2018 Aug 8.</p>
},
	month = {Sep},
	pages = {1091-1100},
	edition = {2018/05/16},
	abstract = {<p>BACKGROUND: High prevalence rates of peri-implant diseases have been reported; however, the lack of standardization of definition criteria has lead to variations in the observed estimates. In addition, scarce data are available concerning patient and implant related factors associated to peri-implantitis. The aim of this study was to determine the prevalence of peri-implant diseases and their risk indicators at the patient and implant levels. METHODS: One hundred forty-seven patients with 490 dental implants were included. Dental implants were clinically and radiographically evaluated to determine their peri-implant conditions. Patient-related conditions and implant and prosthetic-related factors were recorded. Multivariable Poisson regression was fitted and prevalence ratios (PR) were reported. RESULTS: 85.3\% of implants (95\%CI 80.2 to 90.4) had mucositis and 9.2\% (95\%CI 4.7 to 13.7) had peri-implantitis. 80.9\% (95\%CI 73.8 to 86.8), and 19.1\% (95\%CI 12.6 to 25.5) of patients had mucositis and peri-implantitis. At the patient level, it was observed an increased probability of peri-implantitis in individuals with pocket depths \&gt;/=6 mm (PR = 2.47) and with \&gt;/=4 implants (PR = 1.96). Smoking increased the probability of peri-implantitis by three times (PR = 3.49). The final multilevel Poisson regression model at the implant level indicated that platform switching reduced the probability of peri-implantitis (PR = 0.18) and implants in function for \&gt;/=5 years increased this probability (PR = 2.11). The final model including patient and implant level indicators demonstrated that higher time of function (PR = 2.76) and smoking (PR = 6.59) were associated with peri-implantitis. CONCLUSION: Peri-implant diseases are highly prevalent in the studied sample, and factors associated with the occurrence of peri-implantitis were presence of pockets \&gt;/=6 mm, smoking, time of function, and type of platform.</p>
},
	keywords = {*cross-sectional studies, *Dental Implants, *Mucositis, *Peri-Implantitis, *risk factors, *Stomatitis, Cross-Sectional Studies, Humans, Risk Factors},
	isbn = {1943-3670 (Electronic)0022-3492 (Linking)},
	url = {https://www.ncbi.nlm.nih.gov/pubmed/29761866},
	author = {Pimentel, S. P. and Shiota, R. and Cirano, F. R. and Casarin, R. C. V. and Pecorari, V. G. A. and Casati, M. Z. and Haas, A. N. and Ribeiro, F. V.}
}
