改良式Twin-Block矫治器联合J钩高位牵引与传统Twin-Block矫治器的临床对照研究

注册号:

Registration number:

ChiCTR2600126098 

最近更新日期:

Date of Last Refreshed on:

2026-06-03 16:43:58 

注册时间:

Date of Registration:

2026-06-03 00:00:00 

注册号状态:

预注册

Registration Status:

Prospective registration

注册题目:

改良式Twin-Block矫治器联合J钩高位牵引与传统Twin-Block矫治器的临床对照研究

Public title:

A Clinical Controlled Study of Modified Twin-Block Appliance Combined with J-Hook High-Pull Traction versus Traditional Twin-Block Appliance

注册题目简写:

English Acronym:

研究课题的正式科学名称:

改良式Twin-Block矫治器联合J钩高位牵引的应用与效果分析

Scientific title:

Application and Effect Analysis of Modified Twin-Block Appliance Combined with J-Hook High-Pull Traction

研究课题代号(代码):

Study subject ID:

在二级注册机构或其它机构的注册号:

The registration number of the Partner Registry or other register:

申请注册联系人:

宋一鸣 

研究负责人:

郭力嘉 

Applicant:

Yiming Song 

Study leader:

Lijia Guo 

申请注册联系人电话:

Applicant telephone:

+86 17856656722

研究负责人电话:

Study leader's
telephone:

+86 10 5709 9661

申请注册联系人传真 :

Applicant Fax:

研究负责人传真:

Study leader's fax:

申请注册联系人电子邮件:

Applicant E-mail:

sym020403@163.com

研究负责人电子邮件:

Study leader's E-mail:

orthoest@163.com

申请单位网址(自愿提供):

Applicant website(voluntary supply):

研究负责人网址(自愿提供):

Study leader's website(voluntary supply):

申请注册联系人通讯地址:

北京市丰台区樊家村路9号

研究负责人通讯地址:

北京市丰台区樊家村路9号院

Applicant address:

No.9 Fanjiacun Road, Fengtai District, Beijing, China

Study leader's address:

No.9 Fanjiacun Road, Fengtai District, Beijing, China

申请注册联系人邮政编码:

Applicant postcode:

研究负责人邮政编码:

Study leader's postcode:

申请人所在单位:

首都医科大学附属北京口腔医院

Applicant's institution:

Beijing Stomatological Hospital , Capital Medical University

研究负责人所在单位:

首都医科大学附属北京口腔医院

Affiliation of the Leader:

Beijing Stomatological Hospital , Capital Medical University

是否获伦理委员会批准:

Approved by ethic committee:

Yes

伦理委员会批件文号:

Approved No. of ethic committee:

CMUSH-IRB-KJ-PJ-2026-24

伦理委员会批件附件:

Approved file of Ethical Committee:

查看附件View

批准本研究的伦理委员会名称:

首都医科大学附属北京口腔医院伦理委员会

Name of the ethic committee:

Institutional Review Board of Beijing Stomatological Hospital, Capital Medical University

伦理委员会批准日期:

Date of approved by ethic committee:

2026-04-23 00:00:00

伦理委员会联系人:

夏晓钰

Contact Name of the ethic committee:

Xia Xiaoyu

伦理委员会联系地址:

北京市丰台区樊家村路9号院

Contact Address of the ethic committee:

No.9 Fanjiacun Road, Fengtai District, Beijing, China

伦理委员会联系人电话:

Contact phone of the ethic committee:

+86 10 57099307

伦理委员会联系人邮箱:

Contact email of the ethic committee:

18602615270@163.com

研究实施负责(组长)单位:

首都医科大学附属北京口腔医院

Primary sponsor:

Beijing Stomatological Hospital , Capital Medical University

研究实施负责(组长)单位地址:

北京市丰台区樊家村路9号院

Primary sponsor's address:

No.9 Fanjiacun Road, Fengtai District, Beijing, China

试验主办单位(项目批准或申办者):

Secondary sponsor:

国家:

中国

省(直辖市):

北京市

市(区县):

Country:

China

Province:

Beijing

City:

单位(医院):

首都医科大学附属北京口腔医院

具体地址:

北京市丰台区樊家村路9号院

Institution
hospital:

Beijing Stomatological Hospital , Capital Medical University

Address:

No.9 Fanjiacun Road, Fengtai District, Beijing, China

经费或物资来源:

研究生课题

Source(s) of funding:

Postgraduate Research Project

研究疾病:

骨性II类下颌后缩  

Target disease:

Skeletal Class II mandibular retrognathia

研究疾病代码:

Target disease code:

研究类型:

观察性研究

Study type:

Observational study

研究所处阶段:

其它 

Study phase:

N/A

研究设计:

队列研究 

Study design:

Cohort study 

研究目的:

针对于目前临床广泛使用的传统 Twin-Block 矫治器的不足之处,我们对其进行了改良设计,并获得了一项实用新型专利(专利号:ZL 2024 2 1003597.0)。本研究旨在评估改良式 Twin-Block 矫治器联合 J 钩高位牵引对非低角患者垂直向高度的控制效果,建立针对青少年骨性 II 类非低角患者的“矢状-横向-垂直向三维调控”体系,实现从单纯促进下颌发育到三维生长改建协同控制的范式升级,为临床提供可推广的解决方案。  

Objectives of Study:

In response to the shortcomings of the traditionally used Twin-Block appliance in clinical practice, we have developed an improved design and obtained a utility model patent (Patent No.: ZL 2024 2 1003597.0). This study aims to evaluate the effect of the improved Twin-Block appliance combined with high-position J-hook traction on vertical height control in non-low-angle patients, and to establish a "sagittal-transverse-vertical three-dimensional regulation" system for adolescent skeletal Class II non-low-angle patients. This approach aims to upgrade the paradigm from merely promoting mandibular development to coordinated three-dimensional growth remodeling, providing a practical solution for clinical application.

药物成份或治疗方案详述:

 

Description for medicine or protocol of treatment in detail:

 

纳入标准:

Inclusion criteria

排除标准:

1.伴有严重全身性或精神疾病;
2.治疗前颌骨外伤史、手术史;
3.先天缺牙;
4.颞下颌关节病;
5.严重牙周病;
6.治疗前后相关影像学资料(头侧片、CBCT)不完整或不清晰;
7.智力障碍者;

Exclusion criteria:

1.With severe systemic or mental diseases;
2.History of maxillofacial trauma or surgery before treatment;
3.Congenital tooth agenesis;
4.Temporomandibular joint disorders (TMD);
5.Severe periodontal disease;
6.Incomplete or unclear relevant imaging data (lateral cephalograms, CBCT) before and after treatment;
7.Patients with intellectual disability;

研究实施时间:

Study execute time:

From 2025-06-27 00:00:00 To 2027-06-27 00:00:00  

征募观察对象时间:

Recruiting time:

From 2026-06-10 00:00:00 To 2026-06-30 00:00:00

干预措施:

Interventions:

组别:

分为试验组(改良Twin-Block+J钩高位牵引)

样本量:

20

Group:

The patients were divided into the experimental group (modified Twin-Block + J-hook high-pull traction)

Sample size:

干预措施:

干预措施代码:

Intervention:

None

Intervention code:

组别:

对照组(传统Twin-Block)

样本量:

20

Group:

control group (conventional Twin-Block).

Sample size:

干预措施:

干预措施代码:

Intervention:

None

Intervention code:

研究实施地点:

Countries of recruitment and research settings:

国家:

中国

省(直辖市):

北京市 

市(区县):

 

Country:

China

Province:

Beijing

City:

单位(医院):

首都医科大学附属北京口腔医院 

单位级别:

三级甲等 

Institution
hospital:

Beijing Stomatological Hospital , Capital Medical University

Level of the institution:

Tertiary A

测量指标:

Outcomes:

指标中文名:

蝶鞍点- 鼻根点- 下牙槽座角

指标类型:

主要指标

Outcome:

Sella turcica point - Nasion point - Inferior alveolar angle

Type:

Primary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

眶耳平面- 下颌平面角

指标类型:

主要指标

Outcome:

Orbitale-Auriculare Plane - Mandibular Plane Angle

Type:

Primary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

翼上颌裂点- 上牙槽座点距

指标类型:

次要指标

Outcome:

Pterygomaxillary fissure point - distance to upper alveolar ridge point

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

鼻根点- 鼻底点- 颏前点角

指标类型:

次要指标

Outcome:

Nasion point - Subnasale point - Pogonion point angle

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

上中切牙切端至腭平面距

指标类型:

次要指标

Outcome:

Distance from the incisal edge of the maxillary central incisor to the palatal plane

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

髁突长轴长度

指标类型:

次要指标

Outcome:

Condylar long axis length

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

下中切牙切端至 NB 线距

指标类型:

次要指标

Outcome:

Distance from the incisal edge of the lower central incisor to the NB line

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

上中切牙长轴- NA 线夹角

指标类型:

次要指标

Outcome:

Maxillary central incisor long axis - NA line angle

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

Z 角

指标类型:

次要指标

Outcome:

Z-angle

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

悬雍垂- 中咽壁距

指标类型:

次要指标

Outcome:

U- MPW(DOP)

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

下唇至审美平面距

指标类型:

次要指标

Outcome:

LL- EP

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

翼上颌裂点- 蝶鞍点距

指标类型:

次要指标

Outcome:

Ptm- S

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

前鼻棘点- 颏下点距

指标类型:

次要指标

Outcome:

ANS- Me(FHN)

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

Y轴角

指标类型:

主要指标

Outcome:

Y- axis angle

Type:

Primary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

后鼻棘- 上咽壁距

指标类型:

次要指标

Outcome:

PNS- UPW

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

颏前点至鼻根垂线距

指标类型:

次要指标

Outcome:

Pos- TVL

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

上第一磨牙至腭平面距

指标类型:

次要指标

Outcome:

U6- PP

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

关节后间隙

指标类型:

次要指标

Outcome:

PS(posterior joint space)

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

上牙槽座点- 鼻根点- 下牙槽座角

指标类型:

主要指标

Outcome:

Upper alveolar point - nasion - lower alveolar angle

Type:

Primary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

Wits值

指标类型:

主要指标

Outcome:

Wits appraisal

Type:

Primary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

会厌- 下咽壁距

指标类型:

次要指标

Outcome:

V- LPW(DHP)

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

下颌平面- 颅底平面角

指标类型:

主要指标

Outcome:

MP- SN

Type:

Primary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

髁突点- 颏顶点距

指标类型:

次要指标

Outcome:

Co- Gn

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

下中切牙切端至下颌平面距

指标类型:

次要指标

Outcome:

L1- MP

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

上中切牙- 颅底平面角

指标类型:

次要指标

Outcome:

U1- SN

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

关节前间隙

指标类型:

次要指标

Outcome:

AS(anterior joint space)

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

鼻根点- 前鼻棘点距

指标类型:

次要指标

Outcome:

N- ANS(FHN)

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

下中切牙- 眶耳平面角

指标类型:

次要指标

Outcome:

FMIA

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

下唇至鼻根垂线距

指标类型:

次要指标

Outcome:

LL- TVL

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

髁突点- 上牙槽座点距

指标类型:

次要指标

Outcome:

Co- A

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

颏前点至眶耳平面垂线距

指标类型:

次要指标

Outcome:

Po- FHN

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

关节上间隙

指标类型:

次要指标

Outcome:

SS(superior joint space)

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

舌背- 舌根后咽壁距

指标类型:

次要指标

Outcome:

TB- TPPW

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

软腭后缘- 软腭后咽壁距

指标类型:

次要指标

Outcome:

SPP- SPPW

Type:

Secondary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

咬合平面- 眶耳平面角

指标类型:

主要指标

Outcome:

Occlusal Plane - Orbitale Ear Plane Angle

Type:

Primary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

指标中文名:

腭平面- 眶耳平面角

指标类型:

主要指标

Outcome:

Palatal Plane - Orbitomeatal Plane Angle

Type:

Primary indicator

测量时间点:

治疗前后

测量方法:

使用Fusion one 软件进行测量,测量两次取平均值。

Measure time point of outcome:

Before and after treatment

Measure method:

Measurements were performed using Fusion One software, and the mean value of two measurements was calculated.

采集人体标本:

Collecting sample(s)
from participants:

标本中文名:

组织:

Sample Name:

NA

Tissue:

人体标本去向

其它  

说明

Fate of sample:

0thers  

Note:

征募研究对象情况:

Recruiting status:

尚未开始

Not yet recruiting

年龄范围:

Participant age:

最小 Min age 8 years
最大 Max age 13 years

性别:

男女均可

Gender:

Both

随机方法(请说明由何人用什么方法产生随机序列):

Randomization Procedure (please state who generates the random number sequence and by what method):

None

是否公开试验完成后的统计结果:

Calculated Results after the Study Completed public access:

不公开/Private

盲法:

Blinding:

None

是否共享原始数据:

IPD sharing

否No

共享原始数据的方式(说明:请填入公开原始数据日期和方式,如采用网络平台,需填该网络平台名称和网址):

The way of sharing IPD”(include metadata and protocol, If use web-based public database, please provide the url):

None

数据采集和管理(说明:数据采集和管理由两部分组成,一为病例记录表(Case Record Form, CRF),二为电子采集和管理系统(Electronic Data Capture, EDC),如ResMan即为一种基于互联网的EDC:

病例记录表

Data collection and Management (A standard data collection and management system include a CRF and an electronic data capture:

CRF

数据与安全监察委员会:

Data and Safety Monitoring Committee:

无/No

注册人:

Name of Registration:

 2026-06-03 16:43:20