Associação entre doença periodontal e halitose

Abstract

Halitosis or bad breath are terms often used to describe any smell resulting from the oral cavity through speech or breathing. As the etiology of halitosis is quite complex, it is not uncommon for patients to seek a variety of disciplines,medical and dental, seeking to solve the problem. However, recent studies have confirmed that 80-90% of the cause of bad breath originating in the oral cavity itself and the main resposnsáveis are the Gram-negative anaerobic bacteria; these species of bacteria are able to degrade sulfur-containing substrates in different areas of the oral cavity and are the same species that has been associated with periodontal disease. In this context, the coating of the tongue and periodontal disease may have an important role in the establishment and continuation of halitosis. However, there are no population-based studies to investigate the relationship between periodontal disease and halitosis. Thus, the objective of this study is to evaluate the association between periodontal disease and halitosis self-reported in young adults from birth cohort in 1982 in the city of Pelotas. It will be investigated a sample of 720 individuals from birth cohort conducted in Pelotas, Brazil. These individuals were visited for oral health study in 1997, 2006 and 2013, where it was held an oral test and a questionnaire was applied with questions regarding oral health and access to dental services. The outcome of this study will be the presence of self-reported halitosis after 31 years. This information was collected through the following question: "Do you think you have bad breath (halitosis)?”. Independent variables include socioeconomic, behavioral, and clinical oral health. It will be held descriptive analysis to estimate the absolute and relative frequencies of the sample according to the outcome variable. Subsequently, the Chi-square test and chi-square linear tendency to verify the association of variables is applied. Multivariate analysis models by Poisson regression with robust variance will be used to test the association between halitosis, periodontal disease and other covariates.