Retained dental roots of adults : a nationwide population study with panoramic radiographs
Koskela, Sanna; Vehkalahti, Miira M.; Suominen, Anna L.; Huumonen, Sisko; Ventä, Irja (2022-05-18)
Koskela, S., Vehkalahti, M. M., Suominen, A. L., Huumonen, S., & Ventä, I. (2022). Retained dental roots of adults: A nationwide population study with panoramic radiographs. European Journal of Oral Sciences, 130(3). https://doi.org/10.1111/eos.12862
© 2022 The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
https://creativecommons.org/licenses/by/4.0/
https://urn.fi/URN:NBN:fi-fe2022110264446
Tiivistelmä
Abstract
The aim of this study was to assess the occurrence and nature of retained dental roots and their associations with demographics in the Finnish adult population. From the cross-sectional nationwide Health 2000 Survey of the Finnish population aged 30 years and older, 6005 participants with clinical oral examination and panoramic radiographs were included. Occurrence and characteristics of all retained dental roots were examined. Statistical analyses included χ2, Kruskal–Wallis and Mann–Whitney U tests, and SAS-SUDAAN calculations. The mean age of the 6005 participants (46% men and 54% women) was 53 (SD 14.6) years. At least one retained dental root was observed in 13% (n = 754) of the participants. The 1350 retained roots included 461 (34%) roots retained entirely in bone and 889 (66%) partly in bone. The most common location of a retained dental root was the third molar region. Occurrence of retained roots partly in bone was associated with male sex and lower education. Occurrence of retained third molar roots entirely in bone was associated with female sex, younger age, higher education, and living in a city. Among all retained dental roots, the preponderance of third molars emphasized the demanding nature of extracting the third molar in women.
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