Occlusal dysesthesia in Prosthodontic Dentistzy

为了对患者进行体感和体运动测试，以评估是否存在真正的视觉感觉障碍，我们建立了系统的评估体系，其中通过牙齿牙周韧带机械感受器（2Foil试验）、颞下颌关节机械感受器（TMJ试验）和颌肌肌梭感受器（Stick试验）三个外周神经输入来确定咬合感觉。正常受试者组（n28）和听觉感觉障碍患者组（nz7）分别进行了这3项测试，结果显示，除了Foil测试外，两组之间的感觉能力无显著差异。箔试验的重点是测试牙周韧带机械感受器在上门牙和下门牙之间放置的两种不同程度的箔厚度下区分尺寸的能力。结果的总结（两组的平均最小识别阈值水平）如下所述。n Mean SD Mm MaxNormal 25 13.44 10.239 4 34ococal sensation 6 11.00 13.372 4 38 （μm）这些结果表明，ococal sensation患者组比正常组具有更好（更薄）的辨别能力。当然，除了牙周机械感受器之外，其他的感受器，如肌纺锤体或颞下颌关节感受器，也有助于大脑确定颌骨在空间中的位置。考虑到这些注意事项，这些研究结果表明这些患者的问题与牙周机械感受器的实际更好的敏感性有关。虽然这些患者似乎有心理问题的趋势，但很可能客观的生理结果也解释了一些症状。

In order to conduct somatosensory and somatomotor testing on patients to assess whether a true ocriusal dysesthesia exists, systematic evaluation system was developed, where occlusal sensation was determined by three peripheral neural inputs: periodontal ligament mechanoreceptors of the teeth (2Foil test), TMJmechanoreceptors (TMJ test) and muscle spindle receptors in the jaw muscles (Stick test). Two groups, which included normal subject group (n28) and ooclusal dysestihesia patient group (nz7), underwent these 3 tests and the results revealed that there was no significant difference in the sensory ability between these two groups except for the Foil test. The focus of the Foil test was to test the ability of the periodontal ligament mechanoreceptor to discriminate the dimensions at two different degrees of foil thickness placed between upper and lower incisors. The summary of the results (averaged minimum discnmination threshold levels for two groups) are described below.n Mean SD Mm MaxNormal 25 13.44 10.239 4 34Ocnlusal Dysesthesia 6 11.00 13.372 4 38 (μm)These results revealed that the ocdusal dysesthesia patient group exhibited better (thinner) discrimination ability than the normal group. Of course, other receptors in addition to periodontal mechanoreceptors such as muscle spindles or TMJ receptors contribute to the sum of data used by the brain to determine where the jaw is positioned in space. Given these note these studyresults suggest that the problem of these patients are related to actual better sensitivity of the periodontal mechanoreceptor. Although there appears to be a trend toward psychological issues in these patients, it is likely that physical objective findings also explain some of the symptoms.