Skip Navigation

The European Journal of Orthodontics 1988 10(1):227-234; doi:10.1093/ejo/10.1.227
© 1988 by European Orthodontic Society
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Buschang, P. H.
Right arrow Articles by Turkewicz, J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Buschang, P. H.
Right arrow Articles by Turkewicz, J.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Mathematical models of longitudinal mandibular growth for children with normal and untreated Class I division 1 malocclusion

P. H. Buschang1, R. Tanguay, A. Demirjian, L. LaPalme and J. Turkewicz

Faculté médicine dentaire Université de Montréal Québec, Canada

1Dr Peter Buschang Faculté médicine dentaire Université de Montréal Case postale 6128, Succursale ‘A’ Montréal, Québec H3C 3J7 Canada

Two-level polynomial models are used to estimate and compare the mandibular growth of French-Canadian children between 6 and 15 years of age with normal occlusion and untreated Class II, division 1, malocclusion. With the exception of annual growth velocity, the curves describing the amount and direction of growth for the cephalometric landmark gnathion are comparable for children with normal and malocclusion. Growth deficiencies for children with malocclusion, approximating 0.4 cm/yr for boys and 0.2 cm/yr for girls, accumulate throughout the age range producing significant differences at the older ages. Peak childhood and pubertal velocities are estimated to occur at 8.7 and 14.1 for boys and 7.7 and 12.9 for girls, respectively. Growth direction changes in a curvilinear manner throUghout the age range.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.