Influence of angular position and degree of impaction of third molars on development of symptoms: Long-term follow-up under good oral hygiene conditions

Takashi Sasano, Naoyuki Kuribara, Masahiro Iikubo, Atsushi Yoshida, Shizuko Satoh-Kuiriwada, Noriaki Shoji, Maya Sakamoto

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

To determine the risk of developing symptoms due to the presence of maxillary and mandibular third molars, we analyzed a reliable population sample by age, and according to third-molar position and impaction level using long-term follow-up data under conditions of good oral hygiene. Of 308 graduates from our dental school, a total of 776 third molars were followed up for periods of 11 to 27 years by means of intraoral radiographs. The development of symptoms, the participant's age, and third-molar angular position and degree of impaction were investigated. For both maxillary and mandibular third molars, the risk of developing a symptom correlated neither with angular position nor with impaction level. The first symptom associated with a third molar developed most frequently in their 20's for both maxilla (16.2%) and mandible (17.5%), with the next highest frequency being in their 30's (12.6%, maxilla; 13.0%, mandible). The status of third molars shows no relation to the subsequent development of symptoms if good oral hygiene is maintained. The low rates of symptom-development do not support removal of asymptomatic third molars.

Original languageEnglish
Pages (from-to)75-83
Number of pages9
JournalTohoku Journal of Experimental Medicine
Volume200
Issue number2
DOIs
Publication statusPublished - 2003 Jun 1

Keywords

  • Criteria for third molar extraction
  • Long-term follow-up
  • Third molar symptoms

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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