Cone-beam CT Study on Growth and Development of Mandibular Third Molars Among 562 Adolescents Aged 12-16 in Wuhan

doi:10.13701/j.cnki.kqyxyj.2023.03.007

Abstract

Abstract: Objective: To investigate the growth and development of mandibular third molars in adolescents in Wuhan, and to provide reference for clinical preventive extraction of mandibular third molars in adolescents. Methods: The digital imaging data of cone-beam CT of 562 adolescent patients aged 12 to 16 in Wuhan who were treated in Wuhan Savaid Stomatology Hospital from June 2019 to June 2021were selected, including 252 males and 310 females, the growth, development, and eruption direction of mandibular third molars and the crowding of mandibular dentition were observed. Results: The incidence of mandibular third molars was 95.2%, and there was no significant difference in the incidence of mandibular third molars between male and female (P>0.05). Most of the mandibular third molars were in the development stage of crown formation, there was no difference in the development of mandibular third molars in different genders (P>0.05). Mesial impacted development was the most common, and it was often accompanied by crowding of the mandibular dentition. Conclusion: The growth and development of mandibular third molars evaluated by cone-beam CT imaging data has reference value for clinical preventive extraction of mandibular third molars.

Key words: cone-beam CT, mandibular third molars, growth and development, adolescents

LI Linlin, XIANG Guolin. Cone-beam CT Study on Growth and Development of Mandibular Third Molars Among 562 Adolescents Aged 12-16 in Wuhan[J]. Journal of Oral Science Research, 2023, 39(3): 217-220.

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