关键词: 改良摆型矫治器, 磨牙远移, 安氏Ⅱ类错

Abstract: Abstract: Objective To analyze the curative effect of modified pendulum appliance on maxillary molar distalization.Methods 20 cases of odontogenic angle class Ⅱ malocclusion patients were selected using modified pendulum appliance to achieve maxillary molar distalization.Measurement and analysis of model cephalometrics were made before and after treatment.Results For 4-6 months,the average molar distalization on both sides was 5 mm,which guaranteed enough clearance.Conclusions Modified pendulum appliance is an economical and convenient maxillary molar distalization device with reliable curative effects.