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浙江大学学报(医学版)  2021, Vol. 50 Issue (2): 195-204    DOI: 10.3724/zdxbyxb-2021-0123
专题报道     
微型种植体支抗逆时针旋转功能性牙合平面的疗效研究
张晨星(),许丽琦,林军()
浙江大学医学院附属第一医院口腔科,浙江 杭州 310003
Clinical efficacy of counterclockwise rotating the functional occlusal plane using micro-implant anchorage
ZHANG Chenxing(),XU Liqi,LIN Jun()
Department of Stomatology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
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摘要:

目的:分析使用微型种植体支抗(MIA)逆时针旋转功能性牙合平面(FOP)的矫治效果,并与传统滑动直丝弓技术进行比较。方法:筛选骨性Ⅱ类高角正畸结束患者 40 例,其中 20 例使用 MIA 矫治系统(MIA 组),20 例使用传统滑动直丝弓矫治技术(对照组),对患者治疗前后的头颅侧位片进行头影测量,使用 SPSS 26.0 软件对获取的数据进行统计学分析。结果:治疗结束后,MIA 组患者相较于对照组获得了更好的 FOP 及下颌平面的逆旋效果,表现为 MIA 组患者治疗后 FOP-眶耳平面(FH)角平均变化–4.5(–7.3,–3.7)°,FOP-前颅底平面(SN)角平均变化(–4.6±3.3)°,下颌平面角(MP-FH)平均变化–1.7(–3.0,–0.9)°,而对照组患者治疗后 FOP-FH 角平均变化–0.1(–4.1,3.0)°,FOP-SN 角平均变化(–0.1±5.1)°,MP-FH 角平均变化–0.4(–2.4,0.7)°,两组治疗变化差异均有统计学意义(均P<0.05)。结论:相较于传统滑动直丝弓矫治技术,MIA 矫治系统可更有效地逆旋 FOP,同时减小MP-FH。

关键词: 口腔正畸学功能性牙合平面微型种植体支抗逆时针旋转疗效    
Abstract:

Objective:To evaluate the therapeutic effect of using micro-implant anchorage (MIA) to rotate the functional occlusal plane (FOP) counterclockwise. Methods:Forty skeletal class Ⅱ high-angle patients who had completed orthodontic treatment were enrolled, including 20 patients treated with MIA orthodontic system (MIA group) and the other 20 patients treated with traditional sliding straight wire appliance (control group). Cephalometric measurements on the lateral cranial radiographs before and after treatment were performed, all acquired data were statistically analyzed with SPSS 26.0. Results:At the end of treatment, MIA group obtained better effect of FOP and mandibular plane counter-clockwise rotation than the control group. In the MIA group, the average change of FOP-frankfort horizontal plane (FH), FOP-SN and mandibular plane angle (MP-FH) angle was –4.5(–7.3, –3.7)°, (–4.6±3.3)° and –1.7(–3.0, –0.9)°, respectively. In the control group, the average change of FOP-FH, FOP-SN and MP-FH angle was –0.1(–4.1, 3.0)°, (–0.1±5.1)° and –0.4(–2.4, 0.7)°, respectively. There was significant difference between the change of the two groups (all P<0.05).Conclusion: Compared with the traditional sliding straight wire appliance, counterclockwise rotation of FOP can be more effectively reversed by using MIA orthodontic system, and the MP-FH can be reduced as well.

Key words: Orthodontics    Functional occlusal plane    Micro-implant anchorage    Counter-clockwise rotation    Efficacy
收稿日期: 2020-11-11 出版日期: 2021-06-18
CLC:  R783.5  
基金资助: 国家自然科学基金(81970978)
通讯作者: 林军     E-mail: 842932137@qq.com;linjun2@zju.edu.cn
作者简介: 张晨星,硕士研究生,住院医师,主要从事口腔正畸临床研究;E-mail:842932137@qq.com;https://orcid.org/0000-0002-5881-7465
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引用本文:

张晨星,许丽琦,林军. 微型种植体支抗逆时针旋转功能性牙合平面的疗效研究[J]. 浙江大学学报(医学版), 2021, 50(2): 195-204.

ZHANG Chenxing,XU Liqi,LIN Jun. Clinical efficacy of counterclockwise rotating the functional occlusal plane using micro-implant anchorage. J Zhejiang Univ (Med Sci), 2021, 50(2): 195-204.

链接本文:

http://www.zjujournals.com/med/CN/10.3724/zdxbyxb-2021-0123        http://www.zjujournals.com/med/CN/Y2021/V50/I2/195

图 1  头颅侧位片测量使用的主要标志点、参考平面示意图标志点包括 1:蝶鞍中心(S);2:鼻根点(N);3:耳点(P);4:眶点(O);5:上牙槽座点(A);6:下牙槽座点(B);7:颏前点(Po);8:颏顶点(Gn);9:颏下点(Me);10:下颌角点(Go);11:关节点(Ar);12:前鼻棘(ANS);13:后鼻棘(PNS);14:口裂点(Stm).参考平面包括 A:前颅底平面(SN);B:眶耳平面(FH);C:下颌平面(MP);D:Y 轴;E:审美平面(E 平面);F:功能性牙合平面(FOP);G:面平面(NPo);H:腭平面(PP).

组别

n

FOP-FH角(°)

FOP-SN角(°)

BOP-FH角(°)

BOP-SN角(°)

U1-APo 距(mm)

U1-APo 角(°)

L1-APo 距(mm)

MIA 组

20

–4.5(–7.3, –3.7)**

–4.6±3.3**

–1.1±3.6

–0.5±3.0

–3.0±2.5**

–7.1±9.0**

–1.6±1.9**

对照组

20

–0.1(–4.1, 3.0)

–0.1±5.1

–0.1±3.7

0.3±3.9

–2.7±1.9**

–8.3±7.2**

–0.5±1.2

t/u

331.5

–3.321

–0.872

–0.748

–0.483

0.462

–2.257

P

<0.01

<0.01

>0.05

>0.05

>0.05

>0.05

<0.05

组别

n

L1-APo 角(°)

U1-L1角(°)

U6-PP距(mm)

L6-MP距(mm)

U1-PP距(mm)

L1-MP距(mm)

?

MIA 组

20

–0.1±7.3

7.2±1.2**

1.9(0.4, 2.8)**

2.1±1.7**

–0.1±2.2

–0.5±2.1

?

对照组

20

2.6±5.6

5.7±9.4*

2.1(1.0, 4.2)**

4.0±1.5**

–0.4±2.2

–1.1±2.2*

?

t

–1.292

0.486

242.0

–3.619

–0.692

–2.399

?

P

>0.05

>0.05

>0.05

<0.01

>0.05

<0.05

?

表 1  MIA 组与对照组治疗后牙性指标变化比较

组别

n

SNA 角(°)

SNB 角(°)

ANB 角(°)

Wits值(mm)

MP-FH角(°)

SN-GoGn角(°)

A-NPo距(mm)

MIA 组

20

–1.3±3.1

0.9±2.5

–2.1±2.2**

0.2±3.5

–1.7(–3.0, –0.9)**

–1.3±3.1

–2.7±2.2**

对照组

20

–1.8±3.0*

0.2±2.6

–2.0±1.9**

–2.3±3.4**

–0.4(–2.4, 0.7)

–0.1±3.1

–2.9±2.3**

t/u

0.569

0.892

–0.240

2.325

278.5

–1.196

0.275

P

>0.05

>0.05

>0.05

<0.05

<0.05

>0.05

>0.05

组别

n

FH-NA角(°)

NA-APo角(°)

Na-GnGo角(°)

FH-NPo角(°)

SGn-FH角(°)

Gn-Go距(mm)

MIA 组

20

–0.7±2.2

–6.0±4.6**

–0.1±2.1

2.2(0.9, 3.1)**

–1.3±1.7**

2.7(1.9, 4.9)**

?

对照组

20

–1.4±2.0**

–6.5±5.1**

–1.0±1.4**

1.1(–0.4, 3.1)**

–0.4±1.6

2.6(1.4, 5.1)**

t/u

1.085

0.313

1.629

151.5

–1.880

191.0

?

P

>0.05

>0.05

>0.05

>0.05

>0.05

>0.05

组别

n

Ar-Go距(mm)

Na-Me距(mm)

S-Go距(mm)

S-Go/Na-Me(%)

ANS-Me距(mm)

ANS-Me/Na-Me(%)

?

MIA 组

20

2.5(1.0, 4.3)**

4.1±3.9**

4.6(1.1, 5.9)**

1.3±2.3*

1.4±2.1**

–1.0(–2.5, 0.1)

?

对照组

20

3.6(1.6, 6.1)**

6.5±5.3**

3.9(2.0, 6.7)**

0.7±2.2

3.5±3.1**

0.1(–0.7, 0.8)

?

t/u

243.5

–1.609

204.5

0.968

285.5

262.5

?

P

>0.05

>0.05

>0.05

>0.05

<0.05

>0.05

?

表 2  MIA 组与对照组治疗后骨性指标变化比较

组别

n

Ulip-E

Llip-E

Stm-FOP

MIA€组

20

–2.2±2.0**

–2.3±2.1**

–1.7±2.0**

对照组

20

–2.5±1.7**

–3.3±2.0**

–1.0±3.1

t

0.438

1.554

–0.792

P

0.644

0.129

0.433

表 3  MIA 组与对照组治疗后软组织指标变化情况比较
图 2  典型病例治疗过程中面部及口腔照片
图 3  典型病例治疗前后曲面断层 X 线片及侧面 X 线片
图 4  典型病例治疗前(黑色)后(红色)头影测量描记图重叠(基于前颅底平面、蝶鞍中心)

测量项目

治疗前

治疗后

治疗后变化

SNA 角(°)

83.7

81.9

–1.8

SNB 角(°)

78.1

79.5

1.4

ANB 角(°)

5.6

2.3

–3.3

Wits 值(mm)

–4.0

–2.9

1.1

MP-FH角(°)

33.2

27.0

–6.2

U1-APo 角(°)

41.9

34.6

–7.3

U1-APo 距(mm)

10.8

6.5

–4.3

L1-APo 角(°)

31.5

32.4

0.9

L1-APo 距(mm)

9.3

4.5

–4.8

U1-L1角(°)

106.6

113.0

6.4

FOP-FH角(°)

18.9

9.0

–9.9

BOP-FH角(°)

14.8

13.4

–1.4

S-Go/Na-Me(%)

64.1

66.7

2.6

ANS-Me/Na-Me(%)

58.2

54.0

–4.2

Ulip-E(mm)

2.3

–3.3

–5.6

Llip-E(mm)

5.8

1.6

–4.2

U6-PP(mm)

19.6

19.9

0.3

L6-MP(mm)

28.8

28.2

–0.6

U1-PP(mm)

27.3

25.5

–1.8

L1-MP(mm)

37.1

32.6

–4.5

表 4  典型病例治疗前后头影测量结果对比
图 5  三种矫治方法的力学示意图受力方向以直箭头表示,牙移动方式以弯箭头表示.A:关闭曲法;B:传统滑动法;C、D:微型种植体支抗.
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