Denture stomatitis and its risk indicators in south Brazilian older adults

Objective: The purpose of this study was to evaluate if socio-demographic, behaviour and health variables are risk indicators for denture-related stomatitis in community-dwelling older adults from Carlos Barbosa, Brazil. Materials and methods: In this cross-sectional study, 872 subjects aged 60 years or more were evaluated. Data collection included dental examinations and questionnaires to assess socio-demographic, behaviour, general and oral health data. All questionnaires and examinations were carried out during 2004. Associations between the independent variables and the outcomes 'prevalence of denture stomatitis' or 'prevalence of granular stomatitis' were adjusted by means of multivariate logistic regressions. Results: Participants with denture stomatitis were significantly more likely to be females, to display increased amounts of plaque, and significantly less likely to visit the dentist for treatment. Participants with granular stomatitis were significantly more likely to be females and participants with granular stomatitis were significantly more likely to be females, aged 70 years or more and current smokers. In addition, participants with granular stomatitis displayed increased amounts of plaque. Conclusion: The data presented here confirms the central role of denture biofilm accumulation in denture stomatitis. It also indicates that smoking may increase susceptibility to infection in its most severe form.