Assessment of Oral Health Status in a Prison Population in Northern Portugal.

Background: Prisoners constitute one of the disadvantaged groups and it is observed that these individuals suffer from poor oral hygiene and the prevalence of oral diseases is higher compared to the general population. Material and Methods: The aim of this study is to assess the state of the oral health in a prison population in Northern Portugal. A cross-sectional observational study was conducted involving 103 male prisoners with age between 25 and 75 years old. A questionnaire was presented to all the prisoners and an intraoral clinical examination was performed in each of them. Results: The sample mean age was 41.58 ± 8.94 years. Most participants consume sugary foods, with 32% consuming then on a daily basis. It was noticed that 13.6% of the participants do not brush their teeth. Most of the prisoners smoke (78.6%) and 70 smoke more than 10 cigarettes per day. The mean DMFT was 17.17 ± 8.23 and the component with the highest weight was the number of missing teeth, with a mean value of 13.14 ± 8.32. It was observed that 7 individuals are edentulous and 64 (62.1%) have caries lesions. It has been noted that of the 64 individuals presenting caries lesions, 47 (73.4%) eat sugary foods, however this relationship is not statistically significant. It was found that the prevalence of periodontal health was 26%, gingivitis was 32.3% and periodontitis was 41.7%. Plaque Index was evaluated according to the periodontal condition, it was observed a significantly lower level of plaque index in the periodontally healthy subjects compared to the subjects with gingivitis and the subjects with periodontitis. Conclusions: The prevalence of oral diseases in this prison population is high, as is the loss of teeth. Dental caries is the most observed oral disease, and periodontitis the most common of the periodontal diseases.