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中华口腔医学研究杂志(电子版) ›› 2022, Vol. 16 ›› Issue (05) : 287 -293. doi: 10.3877/cma.j.issn.1674-1366.2022.05.004

早期矫治专栏·论著

隐形功能矫治器导下颌向前治疗骨性Ⅱ类安氏Ⅱ类1分类青少年错HE的头影测量研究
孙智雯1, 潘彦君1, 林天卫1, 卢红飞1, 艾虹1, 麦志辉1,()   
  1. 1. 中山大学附属第三医院口腔正畸科,广州 510630
  • 收稿日期:2022-06-26 出版日期:2022-10-01
  • 通信作者: 麦志辉

Cephalometric comparative study of skeletal class Ⅱ Angle class Ⅱ Division 1 malocclusion in adolescents with mandibular advancement guided by invisible functional appliance

Zhiwen Sun1, Yanjun Pan1, Tianwei Lin1, Hongfei Lu1, Hong Ai1, Zhihui Mai1,()   

  1. 1. Department of Orthodontics, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
  • Received:2022-06-26 Published:2022-10-01
  • Corresponding author: Zhihui Mai
  • Supported by:
    Natural Science Foundation of Guangdong Province(2016A030313212)
引用本文:

孙智雯, 潘彦君, 林天卫, 卢红飞, 艾虹, 麦志辉. 隐形功能矫治器导下颌向前治疗骨性Ⅱ类安氏Ⅱ类1分类青少年错HE的头影测量研究[J]. 中华口腔医学研究杂志(电子版), 2022, 16(05): 287-293.

Zhiwen Sun, Yanjun Pan, Tianwei Lin, Hongfei Lu, Hong Ai, Zhihui Mai. Cephalometric comparative study of skeletal class Ⅱ Angle class Ⅱ Division 1 malocclusion in adolescents with mandibular advancement guided by invisible functional appliance[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2022, 16(05): 287-293.

目的

研究骨性Ⅱ类安氏Ⅱ类1分类错HE畸形青少年患者使用隐形功能矫治器导下颌向前,在矢状向、垂直向及牙齿测量数据方面的改变。

方法

选取2018年1月至2021年12月就诊于中山大学附属第三医院口腔正畸科,使用时代天使隐形功能矫治器进行治疗,以下颌后缩为主要病因的骨性Ⅱ类安氏Ⅱ类1分类错HE畸形患者26例[男14例、女12例,年龄(11.4 ± 2.3)岁],调取其导下颌前伸矫治前、后的头颅侧位片进行回顾性研究,对测量结果进行统计学分析,比较功能矫治前后的颌骨及牙齿差异。

结果

隐形功能矫治器导下颌向前治疗后A点后移,SNA由(83.5 ± 3.1)°减小到(82.7 ± 2.6)°,差异有统计学意义(t = 2.7,P = 0.013);B点前移,SNB由(77.7 ± 3.3)°增大到(78.4 ± 3.1)°,差异有统计学意义(t = -2.4,P = 0.027);ANB由(5.8 ± 1.9)°减小至(4.2 ± 2.1)°,差异有统计学意义(t = 7.5,P<0.001);U1-SN由(111.1 ± 6.9)°减小到(104.7 ± 7.2)°,差异有统计学意义(t = 9.6,P<0.001),上前牙内收;L1-MP由(99.7 ± 5.5)°增加到(102.3 ± 6.7)°,差异有统计学意义(t = -3.3,P = 0.003),下前牙唇倾。垂直向U6-PP、L6-MP分别由(19.6 ± 1.9)、(27.6 ± 3.0)mm增加到(20.3 ± 2.4)和(28.8 ± 3.4)mm,差异有统计学意义(tU6-PP = -3.1,PU6-PP = 0.004;tL6-MP = -5.3,PL6-MP<0.001),表明上、下后牙牙槽高度伸长;面下1/3比值ANS-Me/N-Me由(52.6 ± 1.4)%增高至(53.5 ± 1.5)%,差异有统计学意义(t = -5.5,P<0.001);下颌平面角GoGn-SN由治疗前(31.1 ± 5.8)°增加至(32.1 ± 6.0)°,差异有统计学意义(t = -2.1,P = 0.046)。

结论

对生长发育高峰期的骨性Ⅱ类安氏Ⅱ类1分类错HE畸形患者使用无托槽隐形矫治器导下颌向前,可促进颌骨矢状向改建,改善面型,同时协调面下1/3的比例。

Objective

To observe the changes of sagittal, vertical and dental measurement data of skeletal classⅡ Angle classⅡ Division 1 adolescent malocclusion patients before and after the treatment of mandibular advancement with invisible functional appliance.

Methods

Twenty six skeletal class Ⅱ Angle classⅡ Division 1 patients [14 males, 12 females, average age (11.4 ± 2.3) years] with mandibular retrusion as the main cause were selected from the Department of Orthodontics of the Third Affiliated Hospital of Sun Yat-sen University and treated with A6 appliance launched by Angelalign company. The lateral cephalograms before and after treatment were retrospectively studied, and the measurement results were statistically analyzed to compare the differences of jaw and teeth before and after the functional orthopedic treatments.

Results

After the treatment with invisible functional appliance, point A moved backward, SNA decreased from (83.5 ± 3.1) ° to (82.7 ± 2.6) °, with a statistically significant difference (t = 2.7, P = 0.013) ; Point B moved forward, SNB increased from (77.7 ± 3.3) ° to (78.4 ± 3.1) °, the difference was statistically significant (t = -2.4, P = 0.027) ; ANB decreased from (5.8 ± 1.9) ° to (4.2 ± 2.1) °, the difference was statistically significant (t = 7.5, P<0.001) ; U1-SN decreased from (111.1 ± 6.9) ° to (104.7 ± 7.2) °, the difference was statistically significant (t = 9.6, P<0.001) , indicating that the upper anterior teeth were aducted; L1-MP increased from (99.7 ± 5.5) ° to (102.3 ± 6.7) °, the difference was statistically significant (t = -3.3, P = 0.003) , indicating that the labial inclination of lower anterior teeth. In the vertical change, U6-PP and L6-MP increased from (19.6 ± 1.9) mm and (27.6 ± 3.0) mm to (20.3 ± 2.4) mm and (28.8 ± 3.4) mm respectively, and the difference was statistically significant (tU6-PP = -3.1, PU6-PP = 0.004, tL6-MP = -5.3, PL6-MP<0.001) , which indicated that the alveolar height of upper and lower posterior teeth were extended; the ratio of ANS-Me/N-Me between the lower 1/3 of the face and the total height increased from (52.6 ± 1.4) % to (53.5 ± 1.5) %, with a statistically significant difference (t = -5.5, P<0.001) ; the mandibular plane angle GoGn-SN increased from (31.1 ± 5.8) ° to (32.1 ± 6.0) ° after treatment, with a statistically significant difference (t = -2.1, P = 0.046) .

Conclusions

The use of invisible functional appliance for mandible forward in skeletal classⅡ Angle classⅡ Division 1 patients at the peak of growth and development can promote the sagittal reconstruction of jaws, improve face type, and coordinate lower 1/3 height of the face.

图1 头影测量项目的标志点及平面 S:蝶鞍点;N:鼻根点;A:上齿槽座点;B:下齿槽座点;UL:上唇突点;LL:下唇突点;Pog:颏前点;Me:颏下点;Gn:颏顶点;ANS:前鼻棘点;PNS:后鼻棘点;Go:下颌角点;Ar:关节点;U1:上颌中切牙牙轴;L1:下颌中切牙牙轴;UI:上中切牙点;LI:下中切牙点;U6:上颌第一磨牙近中颊尖;L6:下颌第一磨牙近中颊尖;Prn:鼻尖点;Pos:软组织颏前点;Pcd:髁突后缘点;E:髁突后缘点向SN平面做垂线的垂足;SE:髁突相对于前颅底的距离;EP:鼻尖点和软组织颏前点连线构成的E线平面;SN:前颅底平面;MP:下颌平面;PP:腭平面。
表1 安氏Ⅱ类1分类青少年错HE畸形患者隐形功能矫治器治疗前与治疗后头影测量数据统计学分析(n = 26, ± s
测量项目 治疗前 治疗后 t P
矢状向        
  SNA(°) 83.5 ± 3.1 82.7 ± 2.6 2.7 0.013
  SNB(°) 77.7 ± 3.3 78.4 ± 3.1 -2.4 0.027
  ANB(°) 5.8 ± 1.9 4.2 ± 2.1 7.5 0.000
  UL-EP(mm) 2.5 ± 1.8 0.9 ± 1.7 5.7 0.000
  LL-EP(mm) 2.5 ± 2.8 2.5 ± 2.4 0.2 0.878
  Pog-NB(mm) 1.5 ± 1.0 1.4 ± 0.8 1.8 0.083
  SE(mm) 18.9 ± 2.9 19.5 ± 2.7 -2.1 0.045
垂直向        
  ANS-Me(mm) 55.6 ± 4.2 59.3 ± 5.0 -6.4 0.000
  N-Me(mm) 105.7 ± 6.9 111.1 ± 7.4 -5.8 0.000
  S-Go(mm) 69.8 ± 6.4 73.1 ± 7.0 -6.6 0.000
  ANS-Me/N-Me(%) 52.6 ± 1.4 53.5 ± 1.5 -5.5 0.000
  S-Go/N-Me(%) 66.2 ± 4.9 65.8 ± 4.7 0.8 0.439
  Ar-Go-Me(°) 118.7 ± 8.3 120.2 ± 8.8 -2.7 0.014
  GoGn-SN(°) 31.1 ± 5.8 32.1 ± 6.0 -2.1 0.046
牙齿测量值        
  U1-SN(°) 111.1 ± 6.9 104.7 ± 7.2 9.6 0.000
  L1-MP(°) 99.7 ± 5.5 102.3 ± 6.7 -3.3 0.003
  U1-L1(°) 117.0 ± 7.5 119.3 ± 9.1 -2.5 0.021
  U1-NA(°) 27.6 ± 5.9 22.0 ± 6.5 11.8 0.000
  UI-NA(mm) 5.9 ± 2.3 3.9 ± 2.2 8.5 0.000
  L1-NB(°) 29.7 ± 5.3 34.1 ± 6.1 -6.5 0.000
  LI-NB(mm) 6.1 ± 2.2 7.4 ± 2.5 -7.0 0.000
  UI-PP(mm) 25.7 ± 2.3 26.5 ± 2.3 -3.2 0.004
  U6-PP(mm) 19.6 ± 1.9 20.3 ± 2.4 -3.1 0.004
  LI-MP(mm) 37.6 ± 3.6 37.2 ± 3.9 1.2 0.259
  L6-MP(mm) 27.6 ± 3.0 28.8 ± 3.4 -5.3 0.000
  覆盖(mm) 7.6 ± 1.8 2.2 ± 2.5 10.4 0.000
  覆HE(mm) 4.0 ± 1.0 0.6 ± 1.6 10.4 0.000
图2 安氏Ⅱ类1分类骨性Ⅱ类错HE畸形典型病例经隐形功能矫治器(A6)治疗前与治疗后正侧位像 A:治疗前正面像;B:治疗前正面微笑像;C:治疗前侧面像;D:治疗中正面像;E:治疗中正面微笑像;F:治疗中侧面像;G:治疗后正面像;H:治疗后正面微笑像;I:治疗后侧面像。
图3 安氏Ⅱ类1分类骨性Ⅱ类错HE畸形典型病例经隐形功能矫治器(A6)治疗前与治疗后口内照片 A:治疗前左侧HE像;B:治疗前正中HE像;C:治疗前右侧HE像;D:治疗中左侧HE像;E:治疗中正中HE像;F:治疗中右侧HE像;G:治疗后左侧HE像;H:治疗后正中HE像;I:治疗后右侧HE像。
图4 安氏Ⅱ类1分类骨性Ⅱ类错HE畸形典型病例使用无托槽隐形器治疗中和治疗结束口内照片 A:治疗中左侧HE像;B:治疗中正中HE像;C:治疗中右侧HE像;D:治疗结束左侧HE像;E:治疗结束正中HE像;F:治疗结束右侧HE像。
图5 安氏Ⅱ类1分类骨性Ⅱ类错HE畸形典型病例使用无托槽隐形矫治技术治疗前与治疗后全颌曲面断层片 A:治疗前;B:治疗后。
图6 安氏Ⅱ类1分类骨性Ⅱ类错HE畸形典型病例使用无托槽隐形矫治技术治疗前与治疗后头颅侧位片 A:治疗前;B:治疗后。
图7 安氏Ⅱ类1分类骨性Ⅱ类错HE畸形典型病例使用无托槽隐形矫治技术治疗前与治疗后关节影像 A:治疗前矢状位左侧关节;B:治疗前矢状位右侧关节;C:治疗前冠状位左侧关节;D:治疗前冠状位右侧关节;E:治疗后矢状位左侧关节;F:治疗后矢状位右侧关节;G:治疗后冠状位左侧关节;H:治疗后冠状位右侧关节。
表2 安氏Ⅱ类1分类骨性Ⅱ类错HE畸形典型病例隐形功能矫治器治疗前与治疗后头影测量结果( ± s
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