种植体支抗辅助上颌快速扩弓后Ⅲ类错[牙合]上颌骨及上气道的即刻变化  

Maxillary and upper airway changes immediately after mini-screw assisted rapid maxillary expansion in classⅢpatients

作　　者：汤彧婧 贺红[1] 刘志坚[1] Tang Yujing;He Hong;Liu Zhijian(State Key Laboratory of Oral&Maxillofacial Reconstruction and Regeneration,Key Laboratory of Oral Biomedicine Ministry of Education,Hubei Key Laboratory of Stomatology,School&Hospital of Stomatology,Wuhan University,Wuhan 430079,China)

机构地区：[1]武汉大学口腔医(学)院、口颌系统重建与再生全国重点实验室、口腔生物医学教育部重点实验室、口腔医学湖北省重点实验室,武汉430079

出　　处：《中华口腔医学杂志》2023年第9期906-912,共7页Chinese Journal of Stomatology

基　　金：国家自然科学基金(81200811)。

摘　　要：目的通过锥形束CT探讨种植体支抗辅助上颌快速扩弓后Ⅲ类错[牙合]患者上颌骨矢状向和垂直向即刻改变及上气道的变化,以期为临床提供参考。方法回顾性收集2013年1月至2023年3月于武汉大学口腔医(学)院正畸一科就诊的伴上颌横向发育不足的48例Ⅲ类错患者锥形束CT,其中生长期组(颈椎成熟度1~4期)24例,非生长期组(颈椎成熟度5~6期)24例。将扩弓前(T0期)及扩弓后即刻(T1期)锥形束CT数据导入Dolphin Imaging软件,以前颅底区域为基准进行三维体素重叠。确定上颌骨标志点:上牙槽座点(A点)、前鼻棘点(ANS点)、后鼻棘点(PNS点)、上颌中切牙点(UI点)和上牙槽缘点(Spr点)。在重叠后的多平面重建图中,测量扩弓前后上颌骨相同标志点间距离的矢状向和垂直向投影长度,分别代表该标志点矢状向和垂直向变化量,以及上气道测量项目的变化量。采用Wilcoxon符号秩检验分析扩弓变化量与0的差异,采用独立样本Mann-Whitney U检验分析生长期组与非生长期组扩弓变化量的差异。结果扩弓后即刻部分Ⅲ类错[牙合]患者上颌骨发生一定的矢状向及垂直向移位。生长期组腭中缝变化量为4.03(2.99,4.87)mm,显著大于非生长期组[2.27(1.49,3.64)mm](U=3.18,P=0.001)。生长期组A点、ANS点、PNS点、UI点和Spr点矢状向变化量分别为前移0.35(0.06,0.80)、0.48(0.11,0.88)、0.48(0.13,0.99)、0.53(-0.33,1.04)和0.40(0.03,0.69)mm,垂直向变化量分别为下移1.45(0.99,2.13)、1.18(0.61,1.95)、1.30(0.91,1.96)、1.20(0.71,1.83)和1.30(0.81,1.73)mm,与0相比差异均有统计学意义(P<0.05)。非生长期组PNS点前移0.18(-0.08,0.39)mm,A点、ANS点、UI点和Spr点矢状向变化量与0相比差异均无统计学意义(P>0.05),垂直向变化量A点、ANS点、PNS点、UI点和Spr点分别为下移0.90(0.51,1.39)、0.73(0.41,1.21)、0.70(0.55,1.08)、0.60(0.36,1.19)和0.70(0.55,1.23)mm。扩弓前后两组鼻腔宽度和鼻咽容积变化量与Objective To assess maxillary sagittal and vertical as well as upper airway changes immediately after mini-screw assisted rapid maxillary expansion(MARME)in classⅢpatients.Method A consecutive sample of 48 classⅢpatients with maxillary transverse deficiency who visited the Department of Orthodontics,School&Hospital of Stomatology,Wuhan University between January 2013 and March 2023 was retrospectively collected.The sample was comprised of 24 growing patients(cervical vertebra maturation,CVM 1-4)and 24 nongrowing patients(CVM 5-6).Cone-beam CT scans before(T0)and immediately after MARME(T1)were imported into Dolphin Imaging software,and then voxel-based superimposition was conducted on the basis of the anterior cranial base.Sagittal and vertical changes of the maxillary landmarks(A,ANS,PNS,UI and Spr),as well as upper airway changes after MARME were measured on multiplanar reconstruction views.Wilcoxon signed-rank test was employed to analyze the changes after MARME.Mann-Whitney U test was employed to compare the changes between growing and non-growing patients.Results Some classⅢpatients exhibited significant maxillary sagittal and vertical changes immediately after MARME.The amount of changes in midpalatal suture was 4.03(2.99,4.87)mm in growing patients,significantly larger than that in non-growing patients[2.27(1.49,3.64)mm](U=3.18,P=0.001).In growing classⅢpatients,the forward changes of A,ANS,PNS,UI and Spr were 0.35(0.06,0.80),0.48(0.11,0.88),0.48(0.13,0.99),0.53(-0.33,1.04)and 0.40(0.03,0.69)mm,respectively.Vertically,the downward changes of A,ANS,PNS,UI and Spr were 1.45(0.99,2.13),1.18(0.61,1.95),1.30(0.91,1.96),1.20(0.71,1.83)and 1.30(0.81,1.73)mm,respectively.All changes were significantly different from 0 after treatment(P<0.05).In nongrowing patients,PNS moved forward by 0.18(-0.08,0.39)mm while other sagittal changes were statistically insignificant(P>0.05);vertically,the downward changes of A,ANS,PNS,UI and Spr were 0.90(0.51,1.39),0.73(0.41,1.21),0.70(0.55,1.08),0.60(0.36,1.19)and 0.70(0.5

关 键 词：错[牙合] 安氏Ⅲ类 腭扩张术 测颅法 正畸支抗 锥束计算机体层摄影术 微螺钉种植体 气道 

分 类 号：R783.6[医药卫生—口腔医学]