不同矢状骨面型患者后牙颊舌向倾斜度及Wilson曲线曲度的CBCT测量研究.pdf

口腔疾病防治2023年12月第31卷第12期Journal of Prevention and Treatment for Stomatological Diseases,Dec.2023,Vol.31 No.12http:/【摘要】目的研究不同矢状骨面型患者的后牙颊舌向倾斜度及Wilson曲线曲度，探讨不同矢状骨面型患者的后牙水平向倾斜代偿机制，为骨性错畸形治疗中后牙倾斜度控制提供参考依据。方法本研究已通过单位伦理委员会审查批准，并获得患者知情同意。选取90例青少年及90例成人正畸治疗前的CBCT资料作为研究对象，两组样本中各包括矢状骨面型类、类、类各30例。分别测量每一侧由第一前磨牙至第二磨牙的所有后牙颊舌向倾斜度、第一磨牙及第二磨牙的Wilson曲线曲度，比较不同矢状骨面型的青少年及成人间的差异。结果与类骨面型成人相比，类骨面型成人的上颌后牙倾斜度减小，下颌后牙倾斜度增大，差异有统计学意义；类骨面型成人上颌后牙倾斜度增大，下颌后牙倾斜度减小，差异有统计学意义；类骨面型成人第二磨牙的Wilson曲线曲度显著性增大，差异有统计学意义。与类骨面型青少年相比，类骨面型青少年的上颌后牙倾斜度增大，差异有统计学意义。不同矢状骨面型青少年下颌后牙倾斜度差异无统计学意义。对比青少年与成人，类骨面型成人上后牙更偏舌倾，除下颌第一磨牙外下颌后牙更偏直立；类骨面型成人下颌后牙除下颌第二磨牙外更偏舌倾，差异有统计学意义，上颌后牙无明显变化，差异无统计学意义。结论上下后牙的颊舌向倾斜度及Wilson曲线曲度在不同矢状骨面型人群间存在差异，类骨面型人群以上后牙代偿性舌倾、下后牙代偿性直立为主。类骨面型人群以下后牙代偿性舌倾为主，上后牙维持原有的代偿性颊倾。【关键词】青少年；成人；正畸；后牙；颊舌向倾斜度；Wilson曲线曲度；矢状骨面型；锥形束CT；骨性错；代偿机制【中图分类号】R78【文献标志码】A【文章编号】20961456（2023）12086308【引用著录格式】姚宇,谢嘉欣,熊国平,等.不同矢状骨面型患者后牙颊舌向倾斜度及Wilson 曲线曲度的CBCT测量研究J.口腔疾病防治,2023,31(12):863870.doi:10.12016/j.issn.20961456.2023.12.004.Measurement of buccolingual inclination of posterior teeth and the curve of Wilson in patients with differentsagittal skeletal patterns using conebeam computed tomographyYAO Yu,XIE Jiaxin,XIONG Guoping,ZHENG Yuyan,WENG Junquan,WEI Xiaoxia.Department of Stomatology,Shenzhen Peoples Hospital(The SecondClinical Medical College,Jinan University;The First Affiliated Hospital,Southern University of Science and Technology),Shenzhen 518020,ChinaCorresponding author:WEI Xiaoxia,Email:X,Tel:8675522943585【Abstract】ObjectiveTo study the buccolingual inclination of posterior premolars and molars and the curve of Wilson in patients with different sagittal skeletal patterns,to explore the compensation mechanism of horizontal inclinationof posterior teeth in patients with different sagittal skeletal patterns and to provide a reference for the control of posterior tooth inclination in the treatment of bone malocclusion.MethodsThis study was reviewed and approved by the Ethics Committee,and informed consent was obtained from the patients.Ninety CBCT scans of adults and ninety scans ofadolescents before orthodontic treatment were evaluated in this crosssectional study.There were 30 skeletal Class I,微信公众号【收稿日期】20230204；【修回日期】20230531【基金项目】国家自然科学基金项目（81900972）；深圳市科技计划项目（JCYJ20180228164315116）【作者简介】姚宇，主治医师，博士，Email：【通信作者】卫晓霞，主任医师，博士，Email：X，Tel：8675522943585DOI 10.12016/j.issn.20961456.2023.12.004临床研究不同矢状骨面型患者后牙颊舌向倾斜度及Wilson曲线曲度的CBCT测量研究姚宇，谢嘉欣，熊国平，郑雨燕，翁军权，卫晓霞深圳市人民医院（暨南大学第二临床医学院，南方科技大学第一附属医院）口腔医学中心，广东 深圳（518020）863口腔疾病防治2023年12月第31卷第12期Journal of Prevention and Treatment for Stomatological Diseases,Dec.2023,Vol.31 No.12http:/Class,and Class patients in the adult group and adolescent group.The inclination angles of posterior teeth andthe curve of Wilson of first and second molars were measured,and data were analyzed between adolescents and adultswith different sagittal skeletal patterns.ResultsCompared with skeletal Class adult patients,the upper posteriormolar inclination of skeletal Class patients was significantly lower,and the lower posterior molar inclination was significantly higher.Compared with skeletal Class adult patients,the upper posterior molar inclination of skeletal Class adult patients was higher,and the lower posterior molar inclination was significantly lower.The Wilson curve of thesecond molar in skeletal Class adult patients was significantly higher than that in the other groups.Compared withskeletal Class adolescent patients,skeletal Class adolescent patients had a significantly higher upper posterior molar inclination;however,no difference was found between the inclination of the posterior teeth between skeletal Class,Class and Class adolescent patients.Comparing adolescent and adult samples,in skeletal Class patients,adults showed more lingual inclination than adolescents in the upper posterior teeth and less lingual inclination in thelower posterior teeth except for the mandibular first molar.Comparing adolescent and adult samples,in skeletal Class patients,adults showed more lingual inclination than adolescents in the lower posterior teeth except for the mandibular second molars and showed no difference in the upper posterior teeth.ConclusionsThe inclination of the posteriorteeth and the curve of Wilson show significant differences between the three sagittal skeletal patterns.Compared withthose of skeletal Class patients,the posterior teeth of skeletal Class patients show more lingual inclination in theupper arch and less lingual inclination in the lower arch.Meanwhile,posterior teeth of skeletal Class patients showmore lingual inclination in the lower arch and maintain the inclination in the upper arch.【Key words】adolescents;adults;orthodontics;posterior teeth;buccolingual inclination;curve of Wilson;sagittal skeletal pattern;conebeam computer tomography;skeletal malocclusion;mechanism of compensationJ Prev Treat Stomatol Dis,2023,31(12):863870.【Competing interests】The authors declare no competing interests.This study was supported by the grants from National Natur