Comparative of the Clinical Effect of Minimally Invasive Corticotomy and Classical Modified Corticotomy on Tooth Movement in Adult Orthodontics
Objective To compare the clinical effects of minimally invasive corticotomy and classical modified corticotomy on tooth movement in adult orthodontics.Methods A total of 120 adult patients with malocclusion treated in the First Affiliated Hospital of Zhengzhou University from January 2020 to December 2022 were selected and divided into groups according to surgical methods.Sixty patients treated with classical improved corticotomy were included in the improved group,and 60 patients treated with minimally invasive corticotomy were included in the minimally invasive group.Tooth alignment time,gap closing time,tooth position change,soft tissue change and hard tissue change were counted.Results The dental alignment time and gap closing time in minimally invasive group were shorter than those in improved group(P＜0.05).The changes of tooth position in minimally invasive group were greater than those in improved group at 1,2 and 3 months after surgery(P＜0.05).There was no statistical difference in soft tissue changes between the two groups(P＞0.05).The changes of anterior and posterior process distance,maxillary nasal distance,vertical distance from point A to zygomatic arch and maxillary hard tissue height in improved group were greater than those in minimally invasive group(P＜0.05).There were no statistical differences in the vertical distance and the hard tissue height of the second upper molar between the two groups(P＞0.05).Conclusion The effect of minimally invasive corticotomy is similar to that of classical modified corticotomy in accelerating the movement of adult orthodontic teeth.In terms of tooth alignment time and gap closing time,minimally invasive corticotomy has more advantages,but classical modified corticotomy has more advantages in maxillary and mandibular adjustment.
万方数据
维普
