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Analysis of the vertical facial form in patients with severe hypodontia

✍ Scribed by Bondarets, N.; McDonald, Fraser

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
149 KB
Volume
111
Category
Article
ISSN
0002-9483

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✦ Synopsis

We examined the lateral cephalograms of Russian patients in the following categories: control with acceptable occlusions (group 1); severe hypodontia with absence of six or more teeth (group 2); and severe hypodontia associated with hypohidrotic ectodermal dysplasia (HED) (group 3). Analysis was in a cross-sectional manner, comparing dimensions at the start of the mixed dentition phase (age 6-10) and in the permanent dentition (age 12-18). The groups were matched for age and sex. Thirty-one hard- and soft-tissue landmarks were traced, and 35 linear, 19 angular, and 7 ratioed measurements were taken and compared, using analysis of variance to compare the means of each group. A reduced anterior face height was found in groups 2 and 3 as a consequence of a reduced anterior lower face height. In group 2 in the mixed dentition, the posterior face height was also reduced. The inclination of the mandible (

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