[Clinic study of root resorption caused by edgewise appliance combined with flat bite plate treatment ].
OBJECTIVE
To study the root resorption caused by edgewise appliance combined with flat bite plate treatment.


METHODS
65 patients with edgewise technique and flat bite plate treatment were chosen. All patients were taken panoramic radiograph before flat bite plate treatment, immediately after flat bite plate treatment and 6 months after flat bite plate treatment. Root resorption grade of mandibular permanent incisors were analyzed.


RESULTS
There were statistical difference in the root resorption grade of three groups (P < 0.05), but there was no statistical difference between male and female (P > 0.05).


CONCLUSIONS
Flat bite plate can cause root resorption of mandibular permanent incisors, but the root resorption is slight.
Yuan
Xiao-Ping
XP
Dept. of Orthodontics, Hospital of Stomatology, Luzhou Medical College, Luzhou 646000, China.
Yang
Si-Wei
SW
Huang
Su-Hua
SH
D000368:Aged; D003766:Dental Occlusion; D005260:Female; D006801:Humans; D007180:Incisor; D008297:Male; D008334:Mandible; D012391:Root Resorption