title: Prevalence of apical periodontitis and results of endodontic treatment in an adult, Portuguese population.
abstract: The present epidemiological study is derived from a random sample of 322 residents of the Porto area, aged 30-39 years. Prevalence of apical periodontitis and results of endodontic treatment were evaluated from orthopantomograms, available from 179 of a total of 197 individuals attending for examination. The results indicated a prevalence of apical periodontitis in 27% of this population. The quality of a majority (54%) of the 69 root fillings observed were found to be inadequate, (i.e. short and/or poorly condensed), but only 15 (22%) of the endodontically treated teeth presented with apical periodontitis.
mesh_terms: D000328:Adult; D019232:Dental Restoration Failure; D006801:Humans; D010043:Outcome and Process Assessment, Health Care; D010485:Periapical Periodontitis / Q000453:epidemiology* / Q000209:etiology / Q000628:therapy*; D011174:Portugal / Q000453:epidemiology; D015995:Prevalence; D011787:Quality of Health Care; D012389:Root Canal Obturation; D012390:Root Canal Therapy; D019553:Tooth, Nonvital / Q000150:complications*