摘要
目的:探讨隐形矫治器前导下颌对骨性Ⅱ类错[牙合]畸形患者面部美学结构的影响。方法:选取笔者医院2018年6月-2019年1月骨性Ⅱ类错[牙合]畸形患者96例,根据患者意愿分为隐形组(n=46)和双[牙合]垫组(n=50),隐形组予以隐形矫治器治疗,双[牙合]垫组采用双[牙合]垫矫治器治疗。治疗后比较两组患者临床疗效、上下颌骨骨性改变、软组织指标、前牙深覆盖及磨牙远中关系指标及面部美学结构。结果:治疗后隐形组和双[牙合]垫组ABO平均得分、上下颌骨骨性改变、软组织指标比较差异无统计学意义(P>0.05)。隐形组覆盖减小骨性、牙性因素、磨牙关系改善骨性、牙性占比分别为66%、33%、67%、32%;[牙合]垫组分别为58%、42%、67%、33%,覆盖减小骨性因素隐形组高于双[牙合]垫组,牙性因素隐形组低于双[牙合]垫组(P<0.05),其余组间比较差异无统计学意义(P>0.05)。治疗后隐形组后咬肌厚度、R值隐形组高于双[牙合]垫组(P<0.05)。结论:隐形矫治器及双[牙合]垫矫治器治疗骨性Ⅱ类错[牙合]畸形患者均能有效促进下颌骨的生长发育,改善上下颌间关系,但隐形下颌前导矫治器更符合面部外观美学标准。
Objective To investigate the effect of invisible mandibular leading appliance on the facial aesthetic structure of patients with skeletal classⅡmalocclusion.Methods A total of 96 patients with skeletal classⅡmalocclusion from June 2018 to January 2019 in the author's hospital were selected and divided into invisible group(n=46)and double bite pad group(n=50)according to patients'wishes.The group was treated with invisible mandibular leading appliance,and the double occlusal pad group was treated with double occlusal pad appliance.After treatment,the clinical efficacy,bony changes of maxilla and mandible,soft tissue indexes,deep coverage of anterior teeth,distal molar relationship indexes and facial aesthetic structure were compared between the two groups.Results There was no significant difference in ABO average score,maxillary and mandibular bone changes,and soft tissue indexes between the invisible group and the double-bite pad group after treatment(P>0.05).In the invisible group,the proportions of osseous and dental factors were reduced by 66%and 33%,respectively,and the proportions of osseous and dental factors were improved by 67%and 32%respectively in the molar relationship;in the occlusal pad group,the proportions were 58%and 42%,respectively 67%,33%,the coverage reduction in the invisible group with bony factors was higher than that in the double occlusal pad group,and the invisible group with dental factors was lower than the double occlusal pad group(P<0.05).There was no significant difference among the other groups(P>0.05).After treatment,the thickness and R value of the posterior masseter muscle in the invisible group were higher than those in the double occlusal pad group(P<0.05).Conclusion Invisible mandibular leading appliance and double occlusal pad appliance can effectively promote the growth and development of mandible and improve the relationship between mandible and mandibular in patients with skeletal class II malocclusion,but invisible mandibular leading appliance is more in line with the aesthetic standards of facial appearance.
作者
邓旭霞
周美娟
徐巍巍
DENG Xuxia;ZHOU Meijuan;XU Weiwei(Department of Stomatology,Hebei CNPC Central Hospital,Langfang 065000,Hebei,China)
出处
《中国美容医学》
CAS
2024年第2期141-145,共5页
Chinese Journal of Aesthetic Medicine
基金
廊坊市科技计划项目(编号:2021013143)。
关键词
隐形矫治器
Ⅱ类错[牙合]畸形
面部美学结构
双[牙合]垫矫治器
前导下颌
invisible appliance
classⅡmalocclusion
facial aesthetic structure
double occlusal pad appliance
forward mandibular positioning
