微种植钉支抗与平面导板在下前牙过长型深覆■矫治中的效果评价  

Comparison of the application of micro-implant screw support and flat guide plate in the treatment of excessive deep overbite of lower anterior teeth

作　　者：王静 孙一凡 路茜 庞淑婷 WANG Jing;SUN Yi-fan;LU Qian;PANG Shu-ting(Department of Orthodontics,Cangzhou People's Hospital.Cangzhou 061000;School of Stomatology,North China University of Science and Technology.Tangshan 063000;Department of Oral Medicine,Cangzhou People's Hospital.Cangzhou 061000,Hebei Province,China)

机构地区：[1]沧州市人民医院口腔正畸科,河北沧州061000 [2]华北理工大学口腔医学院,河北唐山063000 [3]沧州市人民医院口腔内科,河北沧州061000

出　　处：《上海口腔医学》2024年第3期301-305,共5页Shanghai Journal of Stomatology

基　　金：沧州市重点研发计划指导项目(204106018)。

摘　　要：目的:对比分析微种植钉支抗与平面导板对下前牙过长型深覆■的矫治效果。方法:选择2022年1月—2023年6月接诊的下前牙过长型深覆■患者82例,采用随机数字表法分为2组(各41例),采用直丝弓矫治技术,并分别通过微种植钉支抗(微种植钉组)和固定式平面导板(平面导板组)压低前牙。比较2组下前牙压低效果、覆■变化量、根尖吸收量等。采用SPSS 25.0软件包对数据进行统计学分析。结果:2组矫治前后的SNA角、SNB角、ANB角、U1-PP、U6-PP及L6-MP变化不明显(P>0.05)。2组矫治后L1-MP比矫治前减小,差异有统计学意义(P<0.05)。2组矫治前后的咬合打开量、Spee曲线深度、U1压低量、L1压低量、U6伸长量、L6伸长量及咬合打开时间相比,差异无统计学意义(P>0.05)。微种植钉组下颌中切牙及侧切牙根尖吸收量显著低于平面导板组(P<0.05),2组尖牙根尖吸收量相比无统计学差异(P>0.05)。结论:微种植钉支抗和平面导板用于成人前牙深覆■矫治,能有效压低下颌前牙,矫治效果良好,但后者可导致牙根吸收增加。PURPOSE:To compare and analyze the orthodontic effects of micro-implant screw support and flat guide plate on excessive deep overbite of lower anterior teeth.METHODS:Eighty-two patients with excessive deep overbite of the lower anterior teeth who were treated from January to December 2022 were selected and randomly divided into two groups(41 in each group)by random number table method.Both groups were treated with straight wire arch orthodontic technology,and the anterior teeth were supported by micro-implant screws(micro-implant screw group)and flat guide plates(flat guide plate group),respectively.The effect of upper anterior tooth compression,changes in occlusal plane,and apical absorption were compared between the two groups.SPSS 25.0 software package was used for statistical analysis.RESULTS:There were no significant changes in SNA angle,SNB angle,ANB angle,U1-PP,U6-PP,and L6-MP before and after treatment between the two groups(P>0.05).L1-MP significantly increased in both groups after treatment than before treatment(P<0.05).There was no significant difference in bite opening,Spee curve depth,U1 depression,L1 depression,U6 elongation,L6 elongation and occlusal opening time between the two groups before and after treatment(P>0.05).The root apex absorption of the mandibular central incisors and lateral incisors in the micro-implant screw group was significantly lower than that in the flat guide plate group(P<0.05),while there was no significant difference in root apex absorption between the two groups of canines(P>0.05).CONCLUSIONS:Both micro-implant screw support and flat guide plate can effectively lower the mandibular anterior teeth in the treatment of deep overbite in adults,with good orthodontic effects.However,the latter can lead to increased root resorption.

关 键 词：深覆■ 微种植钉支抗 平面导板 直丝弓矫治 牙根吸收 

分 类 号：R783.5[医药卫生—口腔医学]