[Dentoalveolar characteristics in skeletal class I patients with excessive overjet].
OBJECTIVE
To investigate the dentoalveolar characteristics in skeletal class I patients with excessive overjet.


METHODS
Ten cephalometric measurements of 60 skeletal class I patients with excessive overjet were analyzed.


RESULTS
Compared with patients with normal overjet, 1-SN, 1-NA and MxAAH were significantly increased in excessive overjet group I (overjet: 3 - 5 mm) and 1-SN, 1-NA and MxAAH were significantly increased in excessive overjet group II (overjet: 5 - 7 mm).


CONCLUSIONS
The protrusion and tipping of maxillary incisor, and absence of compensatory proclination of mandibular incisor may be the factors, caused skeletal class I excessive overjet. Increased height of anterior maxillary anterior alveolar process was the compensatory change in skeletal class I patients with excessive overjet.
Hua
Yong-mei
YM
Department of Orthodontics, School of Stomatology, Tongji University, Shanghai 200072, China. huayongmei2003@yahoo.com
Zhao
Bing-jiao
BJ
D000293:Adolescent; D000539:Alveolar Process / Q000000981:diagnostic imaging* / Q000473:pathology; D002508:Cephalometry; D002648:Child; D005260:Female; D006801:Humans; D007180:Incisor / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008311:Malocclusion, Angle Class I / Q000000981:diagnostic imaging* / Q000473:pathology; D011859:Radiography