INFLUENCE OF TOOTH CONTACT ON THE PATH OF CONDYLAR MOVEMENTS
INFLUENCE OF TOOTH CONTACT ON THE PATH OF CONDYLAR MOVEMENTS
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DOI：
10.1016/0022-3913(92)90256-a
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发表时间：
1992-03-01
影响因子：
4.6
通讯作者：
GARLAPO, DA
中科院分区：
文献类型：
--
作者：
ALSAWAF, MM;GARLAPO, DA
通过比较13名颞下颌关节（TMJ）喀喇音患者和15名无TMJ喀喇音患者在侧向移动、张开和伸展运动过程中髁突在左右侧旁平面的运动记录，来检验髁突倾斜度与牙齿导向之间的相关性。应用计算机轴向图研究了牙导与非牙导条件下下颌骨髁突运动的特征轨迹。绘制并分析每个受试者生成的描记图，以计算与轴眶参考平面相关的水平髁倾斜度。来自标准化问卷的信息提供了TMJ弹响的存在与特定的先前医疗事件（扁桃体切除术）之间存在明确相关性的证据。所有受试者的计算机描记数据显示，无论颅下颌接触是天然牙齿的关节连接还是上颌天然牙齿对托盘离合器的关节连接，在检查的任何毫米间隔处，髁突引导的平均角度均无显著差异（p 0.05）。这些结果并不表明，动态牙弓间的牙齿引导或垂直尺寸的变化反映了一个显着的改变，在点击或非点击组的髁突引导的记录。
The correlation between condylar inclination and tooth guidance was tested by comparison of recordings of condylar movement in right and left parasagittal planes during lateral excursion, opening, and protrusive movements in 13 subjects with temporomandibular joint (TMJ) clicks and 15 subjects without TMJ clicks. The characteristic tracing of mandibular movements at the condyle with tooth-guided versus non-tooth-guided conditions were investigated by use of a computerized Axiograph graph. The generated tracings of each subject were graphed and analyzed to calculate the horizontal condylar inclinations as related to the axis orbital reference plane. Information from a standardized questionnaire provided evidence of a definite correlation between the presence of TMJ clicking and a specific prior medical event (tonsillectomy). The data from computerized tracings of all subjects revealed no significant difference (p 0.05) in the mean angles of condylar guidance at any of the millimeter intervals examined regardless of whether the craniomandibular contact was an articulation of natural teeth or an articulation of maxillary natural teeth against a tray clutch. These results do not suggest that dynamic interarch tooth guidance or the change in vertical dimension reflect a significant alteration in the recordings of condylar guidance in clicking or nonclicking groups.