Journal Article

Incremental growth charts for condylar growth between 6 and 16 years of age

PH Buschang, A Santos-Pinto and A Demirjian

in The European Journal of Orthodontics

Published on behalf of European Orthodontics Society

Volume 21, issue 2, pages 167-173
Published in print April 1999 | ISSN: 0141-5387
Published online April 1999 | e-ISSN: 1460-2210 | DOI: http://dx.doi.org/10.1093/ejo/21.2.167
Incremental growth charts for condylar growth between 6 and 16 years of age

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This study provides sex specific reference data for the incremental growth of the mandibular condyle. The results pertain to a mixed-longitudinal sample of 113 males and 108 females followed annually between 6 and 16 years of age (total of 1647 observations). Growth of condylion was evaluated using naturally stale mandibular reference structures. The mean growth curves were estimated by multilevel models using iterative least squares procedures; between subject variation was estimated based on the sample's percentile distributions.

Mean yearly velocities of condylar growth for males ranged between 2.1 and 3.1 mm/year. Growth rates decreased during childhood, increased during adolescence, and attained a maximum of 3.1 mm/year at approximately 14.3 years of age. Females showed a more constant rate of condylar growth during childhood (2.0-2.7 mm/year), a smaller adolescent peak (2.3 mm/year) at approximately 12.2 years and rapid deceleration after the peak.

These reference data offer orthodontists an objective means of evaluating growth potential and treatment outcome in individual patients. Charts are provided for evaluating condylar growth of individual patients.

Journal Article.  0 words. 

Subjects: Restorative Dentistry and Orthodontics

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