2007•Chinese Journal of Aesthetic MedicineRequires access

Extraction treatment of skeletal Class II division I malocclusion

Yajun Liu

Abstract

Objective To investigate the effects of Edgewise technique with extraction treatment in skeletal Class II division I malocclusion of permanent dentition. Methods Ten skeletal Class II division I malocclusion patients in permanent dentition with ANB 7.4° and overjet 8-11mm were treated by Edgewise technique with extract 4 first bicuspids, cephalometric measurements before and after treatment were done. Results After treatment, overjet and overbite of all patients were corrected to normal range.SNA,ANB,UI-NA,NA-PA were reduced by 1.9°(P0.05),2.3°(P0.01),3.3mm(P0.01),4.4°(P0.05)respectively, Conclusion Skeletal Class II division I malocclusion in permanent dentition can be treated successfully by Edgewise technique with extraction 4 bicuspids

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Key concepts: Overjet, Overbite, Malocclusion, Permanent dentition, Medicine, Orthodontics, Dentistry, Dentition