Radiographic evaluation of periapical status and prevalence of endodontic treatment in an adult Japanese population

Midori Tsuneishi, Tatsuo Yamamoto, Reiko Yamanaka, Naofumi Tamaki, Tomonori Sakamoto, Kohzoh Tsuji, Tatsuo Watanabe

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Objectives. To determine the prevalence of periapical radiolucencies and endodontic treatment in an adult Japanese population. Study design. Periapical status and length of root fillings of 672 adult patients attending Okayama University Hospital of Dentistry were evaluated using full mouth intraoral radiographs. Results. Overall, 87% of the subjects had root-filled teeth, and 70% exhibited an apical radiolucency. Of the 16,232 teeth examined, 21% had been root-filled, and, of these, 40% exhibited an apical radiolucency. Root-filled teeth that were overfilled or that were mandibular incisors had the highest prevalence of apical radiolucencies. Conclusions. The prevalence of root-filled teeth appears higher in this Japanese population than in Europe or America; however, the ratio of teeth with an apical radiolucency to root-filled teeth was within the range of that reported for other countries. Overfilled teeth and mandibular incisors are most likely to exhibit apical radiolucencies.

Original languageEnglish
Pages (from-to)631-635
Number of pages5
JournalOral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology
Issue number5
Publication statusPublished - Nov 1 2005


ASJC Scopus subject areas

  • Surgery
  • Oral Surgery
  • Otorhinolaryngology
  • Dentistry(all)

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