Kubota K, Osanai K
J Dent Res. 1977 May;56(5):531-7. doi: 10.1177/00220345770560051401.
The neurohistological investigation of the periodontal sensory innervation in the whole dentition of the Japanese shrew mole showed that the periodontium is much more densely supplied by the free nerve endings at the apical region than at the intermediate one at a ratio of about 8:1 in the upper dentition and 5:1 in the lower dentition. The interdental gingival tissue is innervated by the nerve plexus formed by the nerve fibers deriving mostly from the gingival and a few periodontal nerve fibers. The neurohistology of the tooth is analogous to that of the vibrissa.
对日本鼩鼱整个牙列的牙周感觉神经支配进行的神经组织学研究表明，与牙列中部相比，根尖区域的牙周膜由游离神经末梢供应的密度要大得多，在上颌牙列中比例约为8:1，在下颌牙列中为5:1。齿间牙龈组织由主要来自牙龈的神经纤维和少数牙周神经纤维形成的神经丛支配。牙齿的神经组织学与触须的相似。
