Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.bjoms.2012.02.006
Title: Condylar subchondral formation of cortical bone in adolescents and young adults
Authors: Lei, J.
Liu, M.-Q.
Yap, A.U.J. 
Fu, K.-Y.
Keywords: Cone-beam computed tomography
Growth and development
Mandibular condyle
Temporomandibular joint
Issue Date: 2013
Source: Lei, J., Liu, M.-Q., Yap, A.U.J., Fu, K.-Y. (2013). Condylar subchondral formation of cortical bone in adolescents and young adults. British Journal of Oral and Maxillofacial Surgery 51 (1) : 63-68. ScholarBank@NUS Repository. https://doi.org/10.1016/j.bjoms.2012.02.006
Abstract: We investigated subchondral formation of cortical bone in the condyles of adolescents and young adults, and looked for age-related and sex-related differences in bony formation with the aid of cone-beam computed tomography data in 1438 subjects aged between 10 and 30 years. The scans were part of the hospital's clinical protocol for patients seeking orthodontic or orthognathic treatment. No patient had signs or symptoms of temporomandibular disorders. Central images of the coronal and sagittal planes of the condyle were acquired and scored. Subchondral formation of cortical bone was seen as a high-density compact linear image, and subjects were classified into complete, partial, and no formation. Subchondral formation of cortical bone was first seen at the ages of 13-14 in boys and 12-13 in girls. Complete cortical bony formation was seen after the age of 22 years for men and 21 for women. We conclude that cortical bone begins to form around the periphery of the condyles during adolescence (12-14 years). A continuous, homogeneous, and compact cortical bony layer is established in young adults by the age of 21-22, indicating full development of the mandibular condyle. The condylar bone developed gradually and was generally fully developed a year earlier in women than men. © 2012 The British Association of Oral and Maxillofacial Surgeons.
Source Title: British Journal of Oral and Maxillofacial Surgery
URI: http://scholarbank.nus.edu.sg/handle/10635/46830
ISSN: 02664356
DOI: 10.1016/j.bjoms.2012.02.006
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