摘要
Abstract
Objective To explore the orthodontic effect and maxillofacial aesthetics of micro-implant anchorage plus straight wire technique in the treatment of malocclusion.Methods 126 patients with malocclusion admitted to the hospital from March 2020 to March 2021 were selected as the observation subjects,and they were divided into observation group and control group by the stratified randomization method,with 63 cases in each group.The control group was given traditional straight wire orthodontic technique combined with headgear anchorage,and the observation group was treated with traditional straight wire technique combined with micro-implant anchorage.The orthodontic effect(molar displacement,incisor protrusion difference,incisor inclination angle difference,correction time)after 12 months of treatment,and hard tissue morphological indicators[sella-nasion subspinale angle(SNA),sella-nasion supramental angle(SNB),subspinale-nasion supramental angle(ANB)],periodontal indicators[gingival index(GI),dental plaque index(PLI),sulcus bleeding index(SBI),clinical attachment loss index(CAL)]and oral function(masticatory efficiency,occlusal force)before treatment and after 12 months of treatment were compared between the two groups.Results After 12 months of treatment,the molar displacement in observation group was significantly shorter than that in control group,and the incisor protrusion difference and incisor inclination angle difference were significantly greater than those in control group(P＜0.05),the correction time was shorter than that of the control group(P＜0.05).The SNA,ANB,GI,PLI,SBI and CAL in the two groups were significantly decreased after 12 months of treatment,and the above indicators in observation group were significantly lower than those in control group(P＜0.05),and the SNB,masticatory efficiency and occlusal force in the two groups were significantly increased,and the three indicators in observation group were significantly higher than those in control group(P＜0.05).Conclusion The application of micro-implant anchorage plus straight wire technique in patients with malocclusion has a good orthodontic effect,and it is beneficial to improving the maxillofacial aesthetics and oral masticatory function of patients.关键词
微种植体支抗/直丝弓矫治/错(牙合)畸形/正畸/口腔功能Key words
micro-implant anchorage/straight wire technique/malocclusion/orthodontic/oral function分类
医药卫生
