Maxillary and mandibular dentoalveolar heights of French-Canadians 10 to 15 years of age.
OBJECTIVE
To establish reference data for anterior and posterior dentoalveolar heights of growing French-Canadians with untreated normal occlusions and malocclusions.


METHODS
The mixed longitudinal sample includes 227 French-Canadians, 119 male and 108 female, with cephalograms taken annually between 10-15 years of age. Maxillary and mandibular dentoalveolar heights were measured as the perpendicular distances of the incisor tips and first molar mesial cusp tips to the palatal (ANS-PNS) and mandibular (Go-Me) planes.


RESULTS
Male dentoalveolar heights were significantly (P < .05) greater than female heights at all ages. Dentoalveolar heights at 15 years of age were significantly larger (P < .05) than at 10 years of age, with differences ranging from 2.1-4.2 mm in male subjects and from 2.1-3.8 mm in female subjects. The greatest difference in dentoalveolar heights between the 10- and 15-year-old age groups was for the maxillary first molar; the maxillary central incisor height showed the smallest age effects. The coefficients of variation were greater for the maxillary than the mandibular dentoalveolar heights. Correlations of dentoalveolar heights within jaws ranged from 0.53 to 0.82; correlations between jaws ranged from 0.30 to 0.44. The mandibular heights showed the strongest associations.


CONCLUSIONS
French-Canadian adolescents require age- and sex-specific reference data for dentoalveolar heights.
Buschang
Peter H
PH
Department of Orthodontics, Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, Texas 75124, USA. phbuschang@tambcd.edu
Carrillo
Roberto
R
Liu
Sean S
SS
Demirjian
Arto
A
D000293:Adolescent; D000367:Age Factors; D000539:Alveolar Process / Q000033:anatomy & histology*; D002170:Canada; D002508:Cephalometry; D002648:Child; D003724:Dental Arch / Q000033:anatomy & histology; D003766:Dental Occlusion; D005260:Female; D005602:France / Q000208:ethnology; D006801:Humans; D007180:Incisor / Q000033:anatomy & histology*; D008137:Longitudinal Studies; D008297:Male; D008310:Malocclusion / Q000473:pathology; D008334:Mandible / Q000033:anatomy & histology*; D008437:Maxilla / Q000033:anatomy & histology*; D008445:Maxillofacial Development / Q000502:physiology; D008963:Molar / Q000033:anatomy & histology*; D010159:Palate / Q000033:anatomy & histology; D012737:Sex Factors