• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >CBCT Study of Mandibular, Vertical Facial and Airway Adaptation Related to the Temporomandibular Joint.
【24h】

CBCT Study of Mandibular, Vertical Facial and Airway Adaptation Related to the Temporomandibular Joint.

机译：CBCT研究与颞下颌关节有关的下颌，垂直面部和气道适应。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Background and Objective: The vertical skeletal pattern, temporomandibular joint (TMJ) and the airway size of individuals are important factors to consider during orthodontic diagnosis and treatment planning. There is a tendency for both a reduction in airway dimensions and adaptation of mandibular structures secondary to TMJ degenerative disorders, inflammatory disorders and fracture. The purpose of this study was to evaluate the association between these selected TMJ disorders and facial type, to correlate facial types with airway dimensions and to evaluate the association between selected TMJ disorders and airway dimensions.;Materials and Methods: This was a two-component study: the first component was a case-control study, 22 cases and 242 controls, determining the association between facial type and TMJ degenerative disorders, inflammatory disorders and fracture with the outcome being TMJ degenerative, inflammatory disorder or fracture and the predictor being facial types. The second component was a cross-sectional study, 22 cases and 66 controls divided equally in three groups of low, normal and high mandibular plane angles, determining the association between airway dimensions and mandibular phenotypic characteristics. CBCT scans of adults (female 16 years of age or older and male 18 years of age and older) that included the entire mandible as well the cephalometric landmark nasion. The 3D CBCT scan of the individuals were evaluated and measurements were done using Invivo Anatomage, Dolphin Imaging and Vultus 3DMD programs. Odds ratio were calculated based on facial type and gender. ANOVA was used to compare the airway volume and cross section and mandibular measurements between the groups.;Results: The odds of having a long face subject within the case group was significantly higher compared to having a long-face subject in control group. 81% of the case subjects with TMJ involvement had a long vertical facial dimension versus 11% of the control group that had a normal TMJ indicating a highly statistically significant difference. The condylar, ramus, and mandibular heights were significantly smaller in the case group with the TMJ pathology compared to the control group. Ramus height and mandibular alveolar housing for central incisors were significantly smaller in the long face subjects in the control group. The smallest cross sectional area of the airway of the cases was significantly narrower compared to the controls, however, there was no differences in airway volume. There was a considerable trend, not statistically significant, in reduction of the airway smallest cross sectional area and volume, as the facial type got longer within the control group.;Conclusions: The results of this study suggest that a long facial type is strongly associated with previous TMJ inflammatory disorders and degenerative disorders or a fracture of the condyle. There are certain skeletal and dentofacial adaptations that follow resulting in vertical dimension changes, more specifically, smaller condylar process, ramus and body of the mandible height, thinner alveolar housing at the lower incisor region and smaller cross-sectional area of the airway. The results from this study suggest that clinician should carefully monitor the TMJ status in adult individuals with hyperdivergent facial type.
机译：背景与目的：垂直骨骼模式，颞下颌关节（TMJ）和个体气道大小是正畸诊断和治疗计划中要考虑的重要因素。存在继发于TMJ退行性疾病，炎性疾病和骨折的气道尺寸减小和下颌结构适应的趋势。这项研究的目的是评估这些选定的TMJ障碍与面部类型之间的关联，将面部类型与气道尺寸相关联，并评估选定的TMJ障碍与呼吸道尺寸之间的关联。；材料与方法：这是一个两部分研究：第一部分是病例对照研究，共22例和242例对照，确定面部类型与TMJ变性，炎性疾病和骨折之间的关联，其结果为TMJ变性，炎性疾病或骨折，而预测因子为面部类型。第二部分是一项横断面研究，将22例患者和66名对照者平均分为三组下，下，低下颌平面角，确定气道尺寸与下颌表型特征之间的关联。 CBCT扫描成年人（女性为16岁或以上，男性为18岁及以上），包括整个下颌骨以及头颅标志性鼻孔。评估了个体的3D CBCT扫描，并使用Invivo Anatomage，Dolphin Imaging和Vultus 3DMD程序进行了测量。根据面部类型和性别计算赔率。结果使用ANOVA来比较两组之间的气道容积，横截面和下颌骨测量结果。结果：与对照组中的长脸受试者相比，病例组中长脸受试者的几率明显更高。患有TMJ的病例受试者中有81％的人的面部垂直方向较长，而正常TMJ的对照组中有11％的受试者具有统计学上的显着差异。与对照组相比，TMJ病理病例组的突，支，下颌高度明显较小。在对照组的长脸受试者中，中切牙的拉莫斯高度和下颌牙槽腔明显较小。与对照组相比，病例的气道最小横截面面积明显狭窄，但是气道容积没有差异。对照组中，随着面部类型的变长，气道最小横截面面积和体积的减少存在相当大的趋势，但无统计学意义。结论：本研究结果表明，长面部类型与患者的面部表情密切相关。患有先前的TMJ炎性疾病和变性疾病或con突骨折。随之而来的是某些骨骼和牙齿的适应，从而导致垂直方向的尺寸变化，更具体地说，是con突较小，下颌高度的支和体，下切牙区域的齿槽外壳较薄，气道的横截面积较小。这项研究的结果表明，临床医生应该仔细监测面部过度发散的成年个体的TMJ状况。

著录项

  • 作者

    Dadgar-Yeganeh, Amir.;

  • 作者单位

    University of California, San Francisco.;

  • 授予单位 University of California, San Francisco.;
  • 学科 Dentistry.
  • 学位 M.S.
  • 年度 2016
  • 页码 46 p.
  • 总页数 46
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号