Radiographic study of the prevalence of apical periodontitis and endodontic tratment in the adult population of São Luís, MA, Brazil

• Autor(a) principal: Terças, Analúcia Guerra
• Data de Publicação: 2006
• Outros Autores: Oliveira, Ana Emília Figueiredo de, Lopes, Fernanda Ferreira, Maia Filho, Etevaldo Matos
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Journal of applied oral science (Online)
• Texto Completo: https://www.revistas.usp.br/jaos/article/view/3366
• topic: Periodontite apical; Tratamento dos canais radiculares; Radiografia; Epidemiologia; Periapical periodontitis; Apical periodontitis; Root canal treatment; Radiography; Epidemiology

This study investigated the prevalence of apical periodontitis (AP) and its association with endodontically treated teeth in residents of São Luís, MA, Brazil. Two-hundred complete series of periapical radiographs taken over a 10-year period (1993-2003) were retrieved from the files of four prosthesists and five periodontists. The Periapical Index (PAI) was used and the age range, sex, tooth groups, location and association with endodontic treatment (ET) were also analyzed. The Cohen Kappa and Chi-square tests were used for statistical analysis. Out of 200 patients, 135 presented at least one case of AP, which corresponds to a prevalence of 67.5%. Of the 5008 teeth examined, 296 had AP and 553 had ET. Therefore, considering the total number of teeth, AP and ET prevalences were 5.9% and 11%, respectively. Of the 553 endodontically treated teeth, 235 (42.5%) were associated with AP. Chi-square test showed a strong correlation between AP and ET (p