[A primary study on the relationship between condyle position and anterior distraction for cross bite caused by cleft lip and palate].
OBJECTIVE
To evaluate the changes of the position of the mandibular condyle in cleft lip and palate patients with secondary bony cross-bite deformity after early orthodontic treatment with extraoral bow and facial mask.


METHODS
The TMJ topograph 6 months before and after treatment was investigated in 8 patients. The width of the anterior,superior and posterior space of the TMJ was compared prior to and post treatment.


RESULTS
The results showed that there was no significant difference in the width of the three spaces of the TMJ before and after treatment.


CONCLUSIONS
The position of the mandibular condyle had no significant change after maxillary anterior distraction with extraoral bow and facial mask.
Fang
B
B
Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, School of Stomatology, Shanghai Second Medical University, Shanghai 200011, China.
Qiu
W L
WL
Yuan
W H
WH
Tang
Y S
YS
Sheng
G F
GF
Zhang
H
H
Chen
J Y
JY
Zhu
M
M