RESPONSE CHARACTERISTICS OF THE CAT SOMATOSENSORY CORTEX FOLLOWING THE MECHANICAL STIMULATION TO NON-VITAL AND VITAL CANINE
RESPONSE CHARACTERISTICS OF THE CAT SOMATOSENSORY CORTEX FOLLOWING THE MECHANICAL STIMULATION TO NON-VITAL AND VITAL CANINE
复制标题
猫体感皮层对非生命体和生命体犬机械刺激后的反应特征
DOI：
10.1016/j.neuroscience.2017.07.041
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发表时间：
2017
期刊：
影响因子：
3.3
通讯作者：
Yu Hongbo
中科院分区：
文献类型：
--
作者：
Tao Jianxiang;Wang Duo;Ran Jie;Jin Anqi;Yu Hongbo
患者有时会抱怨根管治疗（RCT）后的非活髓牙与活髓牙相比感觉异常，以前对非活髓牙触觉敏感性的心理学研究仍然存在争议。在本研究中，内在信号光学成像，这是作为一个客观的工具，被用来比较皮质的反应特性施加到猫非生命和生命的犬齿的力量。根据诱发皮层反应，反应阈值，信号强度，空间模式，时间动态和力的方向偏好，它们之间的生活和非生活犬没有显着差异。活髓牙和非活髓牙的触觉感受性在皮层反应水平上是相当的，牙髓感受器与触觉功能无关。
Patients sometimes complain that non-vital teeth after root canal treatment (RCT) are paresthesia compared with vital teeth, and previous psychological studies on the tactile sensibility of non-vital teeth remained controversial. In the present study, intrinsic signal optical imaging, which served as an objective tool, was employed to compare the cortex response characteristics following forces applied to the cat non-vital and vital canines. Based on the evoked cortical responses, the response threshold, signal strength, spatial pattern, temporal dynamics and the preference of force direction, they were not significantly different between vital and non-vital canines. It seemed that the tactile sensibility of vital and non-vital teeth was comparable at the cortical response level, and pulpal receptors were not concerned in tactile function.