[Morphological characteristics of craniofacial complex in adults with skeletal class III malocclusions].
作者信息
Ling Jun, Chen Hong, Yang Li
机构信息
The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China.
出版信息
Zhejiang Da Xue Xue Bao Yi Xue Ban. 2006 Sep;35(5):560-3. doi: 10.3785/j.issn.1008-9292.2006.05.018.
OBJECTIVE
To identify the morphological characteristics of craniofacial structure in patients with skeletal class III malocclusions.
METHODS
The study samples consisted of 63 lateral cephalometric radiographs of adult with class I malocclusion (32 male and 31 female, ages >17 years) and 27 patients with skeletal class III malocclusion (14 male and 13 female, ages >17 years, ANB >-3). The proportion of posterior cranial base and the mandibular length were measured.
RESULT
There was an increase in total mandibular length (Go-Gn, Cd-Gn) in female patients with class III malocclusion. There was a decrease in the posterior cranial base length (S-Ar) and an increase in mandibular length (Go-Gn) in male patients with class III malocclusion.
CONCLUSION
The major craniofacial characteristics of skeletal class III malocclusion compared with those of class I malocclusion are smaller posterior cranial base in males and larger mandibular length in both sexes.
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