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[Clinic study of root resorption caused by edgewise appliance combined with flat bite plate treatment ]
Xiao-Ping Yuan1, Si-Wei Yang, Su-Hua Huang
1Dept. of Orthodontics, Hospital of Stomatology, Luzhou Medical College, Luzhou 646000, China.
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).
Conclusion:
Flat bite plate can cause root resorption of mandibular permanent incisors, but the root resorption is slight.