[Craniofacial characteristics of the Class II division 1 malocclusion patients with mouth-breating: a posteroanterior].
OBJECTIVE
To evaluate the craniofacial characteristics of the Class II malocclusion patients with mouth-breating by posteroanterior cephalometry.


METHODS
To measure craniofacial width of the 12 Class II malocclusion patients with mouth-breathing, and to compared these measures with corresponding measures in a group of normal children.


RESULTS
The width of the maxillary base bone (J-J) was less than that in normal children significantly (P < 0.01). The mouth-breathing children's upper and lower arch width (at first molar and cuspid) were comparatively narrower, and lateronasal width (Lap-Lap) was narrower too.


CONCLUSIONS
Mouth breathing may lead to craniofacial morphological abnormal development in craniofacial transverse structures.
Liu
Xiao-Jun
XJ
Dept. of Orthodontics, The Second Hospital of Yunnan Province, Kunming 650021, China.
Yao
Shuang
S
Yang
Shuang
S
Yang
Ping
P
Xu
Qing
Q
Wang
Bing
B
Wang
Wen-Hong
WH
D000293:Adolescent; D002508:Cephalometry; D002648:Child; D003481:Cuspid; D003724:Dental Arch; D005145:Face; D006801:Humans; D008297:Male; D008310:Malocclusion; D008312:Malocclusion, Angle Class II; D008437:Maxilla; D008963:Molar