目的调查人颈髓神经根硬膜性被膜内神经末梢的数量分布，探讨颈神经根性疼痛的发病机制。
Objective To find out the distribution of nerve endings in the dural sheath of cervical nerve roots and to study the mechanism of cervical radicular pain.
无痛的舌神经与疼痛的下牙槽神经末梢支脱髓鞘程度无显著性差异（ P>0 .0 5 ）。
No difference could be detected in the demyelination between painless lingual nerve and painful inferior alveolar nerve ( P >0 05)Vessel wall of artery were seen thickened and cavity became smaller.
无痛的舌神经与疼痛的下牙槽神经末梢支脱髓鞘程度无显著性差异（ P>0 .0 5 ）。
No difference could be detected in the demyelination between painless lingual nerve and painful inferior alveolar nerve ( P >0 05)Vessel wall of artery were seen thickened and cavity became smaller.
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