The clinical study on Angle class II malocclusion with molar's extraction

Objective To provide a guide on the clinic treatment plan of Angle class Ⅱ malocclusion by analysis the indication of extracting molars.Methods 12 patients were treated by MBT technique after their first or second molar's extraction in maxilla and the third molar's extraction in mandible.Compared the difference of the cephalometric analysis before and after treatment.Results 4 indexes were significant difference within all of the 10 subjects.These differences showed that the disparity between 2 methods both in teeth and bone.Conclusion Angle class Ⅱ malocclusion can be managed successfully in virtue of molar's extraction.