中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (8): 1154-1159.doi: 10.3969/j.issn.2095-4344.3046

• 口腔组织构建 oral tissue construction • 上一篇    下一篇

X射线测量青少年骨性Ⅲ类患者前牵引治疗后颞下颌关节结构的改变

刘亚非1,王雅淋2,左艳萍1,孙  琦3,尉  静1,赵利霞1   

  1. 1河北医科大学第一医院口腔正畸科,河北省石家庄市   050031;2保定市第二医院口腔科,河北省保定市   071000;3 河北省儿童医院口腔科,河北省石家庄市   050031
  • 收稿日期:2020-03-03 修回日期:2020-03-07 接受日期:2020-04-15 出版日期:2021-03-18 发布日期:2020-12-10
  • 通讯作者: 左艳萍,博士,河北医科大学第一医院口腔正畸科,河北省石家庄市 050031
  • 作者简介:刘亚非,女,1975年生,河北省石家庄市人,汉族,2008年河北医科大学毕业,硕士,主要从事口腔正畸专业研究。

Structural changes of the temporomandibular joint in adolescents with skeletal Class III malocclusions after maxillary protraction: an X-ray measurement analysis

Liu Yafei1, Wang Yalin2, Zuo Yanping1, Sun Qi3, Wei Jing1, Zhao Lixia1   

  1. 1Department of Orthodontics, First Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China; 2Department of Stomatology, Baoding No. 2 Hospital, Baoding 071000, Hebei Province, China; 3Department of Stomatology, Hebei Children’s Hospital, Shijiazhuang 050031, Hebei Province, China
  • Received:2020-03-03 Revised:2020-03-07 Accepted:2020-04-15 Online:2021-03-18 Published:2020-12-10
  • Contact: Zuo Yanping, MD, Department of Orthodontics, First Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China
  • About author:Liu Yafei, Master, Department of Orthodontics, First Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China

摘要:

文题释义:
前牵引治疗:前方牵引是目前临床上常用的治疗骨性Ⅲ类错牙合的有效方法之一,作用机制是通过前牵引的矫形力,对骨性Ⅲ类错牙合患者的颌骨生长进行矫形治疗,通过前牵引装置对上颌复合体施加300-500 g的矫形力,利用患者的生长潜力,促进上颌骨生长,抑制下颌骨生长,以达到治疗颌骨畸形的目的。前牵引在对上颌施加矫形力的同时,对颏部产生的反作用力,通过下颌体下颌升支传导至颞下颌关节,对其产生应力并造成位移等影响。
颞下颌关节:是人体全身关节中解剖结构与功能最为复杂的关节之一,将下颌骨连结于颞骨而成的一对左右连动关节。牙齿咬合、咀嚼肌肉和颞下颌关节共同组成口颌系统功能整体,日常生活中的咀嚼、吞咽、言语、表情等均与颞下颌关节的运动相关,同时颞下颌关节的形态改变和位置变化也受咀嚼、吞咽、精神等多种因素影响。

背景:骨性Ⅲ类错牙合不正常的上下颌骨位置关系和不正常的咬合接触可影响髁突和关节窝的形态,同时影响下颌运动及咀嚼肌的功能。前牵引矫治器作为治疗青少年骨性Ⅲ类错牙合的有效手段之一,通过矫形力可以重建颌骨位置关系,改善骨性Ⅲ类错牙合患者的关节窝-盘-突关系。
目的:研究青少年骨性Ⅲ类错牙合患者前牵引矫治后颞下颌关节的改变,探讨前牵引矫治对青少年颞下颌关节紊乱结构产生的影响。 
方法:29例年龄12-14岁青少年骨性Ⅲ类错牙合患者,男18例,女11例;平均年龄(12.90±0.99岁),均采用牙支持式固定前牵引矫治器治疗。在前牵引治疗前后拍摄X射线头颅侧位定位片,在矢状方向和垂直方向上,定量分析矫治前后颞下颌关节窝、髁状突的改变及前牵引治疗前后颞下颌关节间隙的改变。
结果与结论:在前方牵引矫治后,矢状方向上颞下颌关节窝和髁状突整体均未发生位移(P > 0.05);垂直方向上颞下颌关节窝和髁状突后缘和上缘无明显移动(P > 0.05),但髁状突前缘发生向上移位(P < 0.05)。颞下颌关节前、上、后间隙治疗前后比较未发生明显变化(P > 0.05)。结果表明青少年骨性Ⅲ类错牙合前牵引矫治后颞下颌关节会发生适应性改建,但是关节间隙在治疗前后没有显著性改变,因此不会对颞下颌关节功能产生不利影响。

https://orcid.org/0000-0001-5052-189X (刘亚非) 
中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 骨, 颞下颌关节, Ⅲ类, 错牙合, 前牵引, 青少年, X射线, 髁状突

Abstract: BACKGROUND: For skeletal Class III malocclusions, the positional relationship between the upper and lower jaws and abnormal occlusion can impact the shape of the condyle and the glenoid fossa, as well as the movement of the mandible and the function of the masticatory muscles. Maxillary protraction appliances are one of the effective methods for the treatment of skeletal Class III malocclusion in adolescents, which can reconstruct the positional relationship of the jaws and improve the glenoid fossa-disc-protrusion relationship in patients with skeletal Class III malocclusion.
OBJECTIVE: To evaluate the temporomandibular joint changes in adolescents with skeletal Class III malocclusions treated with maxillary protraction.
METHODS: Twenty-nine patients (11 girls and 18 boys; age range from 12-14, with a mean age of (12.90±0.99) years were treated with maxillary protraction. Lateral cephalograms were taken before and after treatment. A coordinate system was set to quantitatively analyze the changes of temporomandibular joint fossa, condyle and temporomandibular joint spaces in sagittal and vertical directions.
RESULTS AND CONCLUSION: After maxillary protraction, no displacement of the gleniod fossa and the condyle in the sagittal direction was observed (P > 0.05). Simultaneously, in the vertical direction, there was no significant displacement of the gleniod fossa as well as no posterior and superior condyle displacement      (P > 0.05). However, the anterior condyle moved upward (P < 0.05). No significant changes in the anterior, superior and posterior space of the temporomandibular joint were observed (P > 0.05). These findings indicate that maxillary protraction treatment can adaptively remodel the temporomandibular joint in adolescents with skeletal Class III malocclusion will undergo adaptive remodeling, but will not adversely affect the function of the temporomandibular joint due to the unchanged joint space.

Key words: bone, temporomandibular joint, Class III, malocclusion, maxillary protraction, adolescents, X-ray, condyle

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