Analysis of the Effect of Micro-implant Anchorage on the Treatment of Class Ⅰ and Class Ⅱ Maxillary Protrusion in Teenagers Patients
Objective To investigate the effect of micro-implant anchorage on the treatment of Class Ⅰ and Class Ⅱ maxillary protrusion in teenagers patients.Methods The clinical data of 60 young patients with Class Ⅰ and Class Ⅱ maxillary protrusion in author's hospital from June 2019 to January 2022 were retrospectively analyzed.Grouped by treatment type:The control group(30 cases)received traditional anchorage therapy,and the study group(30 cases)received micro-implant anchorage therapy.The changes of cephalic imaging and masticatory function before and after treatment were compared between the two groups.The time of treatment and the occurrence of adverse reactions were statistically analyzed.Results Six months after surgery,the ANB Angle,U1-NA Angle,U1-NA,U1-X,U1-Y,A-Y,UL-Y and L1-Y of the study group were lower than those of the control group,while the nasolabial Angle and U1-L1 Angle of the study group were higher than those of the control group(P＜0.05).The adduction volume of upper incisor teeth in the study group was(6.82±2.03)mm,which was higher than that in the control group(4.65±1.12)mm(P＜0.05).One year after surgery,the biting force and masticatory efficiency of the research group were higher than those of the control group(P＜0.05).The teeth leveling time,extraction space closing time and fine adjustment time of the study group were shorter than those of the control group during treatment(P＜0.05).The incidence of adverse reactions in the study group was 6.67%,which was lower than that in the control group 26.67%(P＜0.05).Conclusion Micro-implant anchorage has a better therapeutic effect on the adolescent patients with Class Ⅰ and Class Ⅱ maxillary protrusion,which can promote anterior adduction,improve mastication function,and the treatment time is short with less adverse reactions.
Class ⅠClass Ⅱmaxillary protrusionteenagersmicro-implant anchorage
万方数据
维普
