Factors associated with oral health-related quality of life in homeless persons: a cross-sectional study.

This study aimed to evaluate the clinical and sociodemographic factors associated with the oral health-related quality of life (OHRQoL) of homeless persons. A cross-sectional study was conducted, with participants (n = 176) attending a Specialized Reference Center for the Homeless Population in Teresina, Brazil. Dental caries (DMFT index, WHO criteria), periodontal disease (CPI index), and the consequences of untreated caries (PUFA index) were measured by a single calibrated examiner (Kappa ≥0.