Prevalence of apical periodontitis and endodontic treatment in an adult endodontic treatment

Abstract

Introduction: Studies on the prevalence of apical periodontitis and endodontic treatment in Portugal are scarce and outdated. However, studies in other countries have shown that the prevalence of apical periodontitis is high, especially in endodontic treated teeth. Objective: To estimate the prevalence of root-filled teeth and apical periodontitis in an adult Portuguese population. Materials and methods: Panoramic radiographs of a random sample of 222 subjects over 18 years old, who had more than seven teeth, and went to the Faculty of Dentistry, University of Porto, for the first time in 2010, were examined. The number of teeth that were root-filled and the periapical status of all teeth were assessed. Results: Apical periodontitis (PAI ≥ 3) was found in 1.7% of all teeth in the population study. Out of 5.552 teeth, 215 (3.9%) had filled roots. The prevalence of apical periodontitis was greater for root-filled teeth, posterior teeth, and men. The prevalence of apical periodontitis is also increased with age. Conclusion: The prevalence of apical periodontitis in Portugal is similar to its prevalence in other European countries and is higher for root-filled teeth than for non-treated teeth. The prevalence of root-filled teeth is different for Portugal than for other countries, which may be due to the differences in healthcare services provided in various countries.