2种矫治器对轻中度Ⅰ类错[牙合]患者前牙牙根及牙槽骨的影响  

Effect of 2 kinds of appliances on anterior tooth root and alveolar bone in patients with mild to moderate overcrowding of ClassⅠmalocclusion

作　　者：霍美玲 雷颖 辛欣 张颖 王瑞梅 HUO Mei-ling;LEI Ying;XIN Xin;ZHANG Ying;WANG Rui-mei(Department of Orthodontics,Affiliated Hospital of Chifeng University,Chifeng 024000,Inner Mongolia Autonomous Region,China;Department of Stomatology,Affiliated Hospital of Chifeng University,Chifeng 024000,Inner Mongolia Autonomous Region,China;Department of Imaging,Affiliated Hospital of Chifeng University,Chifeng 024000,Inner Mongolia Autonomous Region,China)

机构地区：[1]赤峰学院附属医院口腔正畸科,内蒙古赤峰024000 [2]赤峰学院附属医院口腔科,内蒙古赤峰024000 [3]赤峰学院附属医院影像科,内蒙古赤峰024000

出　　处：《上海口腔医学》2024年第4期407-410,共4页Shanghai Journal of Stomatology

基　　金：内蒙古自治区高等学校科学研究项目(NJZY22183)。

摘　　要：目的:分析固定矫治器与无托槽隐形矫治器对轻中度Ⅰ类错[牙合]患者前牙牙根及牙槽骨的影响。方法 :选择2018年1月-2022年2月收治的120例轻中度Ⅰ类错[牙合]患者,以随机数表法分为对照组和试验组,每组各60例。对照组采用传统固定矫治器,试验组采用无托槽隐形矫治器,矫治前和矫治后12个月均拍摄锥形束CT(CBCT),测量2组上下颌中切牙、侧切牙、尖牙牙根长度及前牙唇舌侧牙槽骨高度和厚度。采用SPSS 22.0软件包对数据进行统计学分析。结果:试验组矫治前后的上下颌中切牙、侧切牙、尖牙牙根长度变化量显著低于对照组(P<0.05)。试验组矫治前后上前牙唇侧和舌腭侧、下前牙唇侧和舌腭侧处牙槽骨高度变化量显著低于对照组(P<0.05)。试验组矫治前后的上下前牙牙颈部、根中部、根尖部水平唇舌侧牙槽骨厚度变化量显著低于对照组(P<0.05)。结论:与固定矫治器相比,无托槽隐形矫治器治疗轻中度Ⅰ类错[牙合]患者可减轻牙根吸收、牙槽骨高度及厚度丢失。PURPOSE:To analyze the effects of fixed appliance and invisible appliance without bracket on anterior tooth root and alveolar bone in patients with mild to moderate overcrowding of ClassⅠmalocclusion.METHODS:A total of 120 patients with mild to moderate dental crowding were selected from January 2018 to February 2022,and divided into control group and experimental group by random number table method,with 60 cases in each group.The control group was treated with traditional fixed appliance,while the experimental group was treated with invisible appliance without bracket.Cone-beam CT(CBCT)was taken before and 12 months after treatment to measure the root length and alveolar bone height and thickness of maxillary central incisor teeth,height of alveolar bone of anterior teeth lip and lingual side and cusp teeth in both groups.Statistical analysis was performed with SPSS 22.0 software package.RESULTS:The root length changes of maxillary central incisor,lateral incisor and cusp teeth in the experimental group were significantly lower than those in the control group before and after treatment(P<0.05).The alveolar bone height changes in the labial side and lingual palatine side of upper anterior teeth,labial side and lingual palatine side of inferior anterior teeth in the experimental group before and after treatment were significantly lower than those in the control group(P<0.05).The thickness changes of labiolingual alveolar bone at the neck,middle root and apex of upper and inferior anterior teeth in the experimental group were significantly lower than those in the control group before and after treatment(P<0.05).CONCLUSIONS:Compared with fixed appliance,invisible appliance without bracket can reduce root resorption and the loss of alveolar bone height and thickness in the treatment of Class I patients with mild to moderate dental crowding.

关 键 词：Ⅰ类错[牙合] 固定矫治器 无托槽隐形矫治器 牙根吸收 牙槽骨 

分 类 号：R783.5[医药卫生—口腔医学]