目的探索无序拔牙与牙齿错牙合畸形的关系。
Objective To find out the relationship between the unreasonable series extraction and abnormal occlusion.
错牙合畸形是多基因遗传病，常表现家族遗传倾向。
Wrong tooth adds up to deformation is polygene hereditary disease, often behave familial and genetic tendency.
方法根据个别牙齿错牙合畸形不同，在矫治过程中将两种矫治器托槽交互替换使用。
Methods According to the difference of malocclusion deformity of some teeth, two kinds of corrective brackets were used in turn.
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