Imaging Science in Dentistry

  • 제53권4호
  • /
  • Pages.303-312
  • /
  • 2023
  • /
  • 2233-7822(pISSN)
  • /
  • 2233-7830(eISSN)
대한영상치의학회 (Korean Academy of Oral and Maxillofacial Radiology)
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Pathologic conditions associated with impacted third molars: A retrospective study of panoramic radiographs in a Southern Brazilian population

  • Gabriela Brum Cardoso (Dental Sciences Post-Graduation Program, Federal University of Santa Maria) ;
  • Gleica Dal' Ongaro Savegnago (Dental Sciences Post-Graduation Program, Federal University of Santa Maria) ;
  • Waneza Dias Borges Hirsch (Department of Stomatology, Federal University of Santa Maria) ;
  • Mariana Boessio Vizzotto (Department of Surgery and Orthopedics, Federal University of Rio Grande do Sul) ;
  • Gabriela Salatino Liedke (Department of Stomatology, Federal University of Santa Maria)
  • 투고 : 2023.02.13
  • 심사 : 2023.07.14
  • 발행 : 2023.12.31
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초록

Purpose: This study investigated the prevalence of developmental and acquired pathologic conditions associated with impacted third molars (3Ms) in a Southern Brazilian population and evaluated whether demographic and tooth characteristics were correlated with the presence of bone or tooth lesions. Materials and Methods: Panoramic radiographs were assessed for developmental (bone-related) or acquired (tooth-related) pathoses associated with impacted upper or lower 3Ms. Data on tooth positioning, tooth development, and patient demographics were collected. A trained, calibrated postgraduate student evaluated all images. Binary and multivariate logistic regression models were used to assess associations between outcomes and the demographic and radiographic variables. The threshold for statistical significance was set at 5% (P<0.05). Results: The sample comprised panoramic radiographs from 2054 patients, predominantly female (59.2%), with a mean age of 27.2±11.5 years. Overall, 4066 impacted 3Ms were evaluated, revealing 471 (11.6%) developmental and 710 (17.5%) acquired pathoses. Among the developmental pathoses, 460 (95.2%) were indicative of dentigerous cysts. Male sex, lower 3M location, vertical or distoangular positioning, and incomplete root formation were associated with an elevated likelihood of developmental pathology. Lower tooth position, complete root formation, and partial eruption were linked to an increased probability of an acquired pathology in the third or second molar. Conclusion: The prevalence of pathologic conditions associated with impacted 3Ms was low. Male sex, lower 3M placement, horizontal or distoangular positioning, and incomplete root formation were associated with developmental pathoses, while lower tooth position, complete root formation, and partial eruption were related to acquired pathoses.

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참고문헌

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