[大鼠三叉神经节细胞向牙髓、牙本质和牙周膜的神经纤维投射]

[The nerve fiber projection of trigeminal ganglion cell to dental pulp, dentine and periodontal membrane in the rat].

作者信息

Wang L M

机构信息

School of Stomatology, Beijing Medical University.

出版信息

Zhonghua Kou Qiang Yi Xue Za Zhi. 1992 Jul;27(4):198-9, 255.

PMID:1303826

Abstract

The nerve fiber projection of the trigeminal ganglion cell to dental pulp, dentine and periodontal membrane was investigated with the technique of anterograde radioautographic neuroanatomical tracing (ARNT) in the rat. Results showed that the innervation in dentine and pulp was not uniform. The nerve endings were most numerous in the pulp horn, and in the tubular dentine of the cusp and cervical regions. In the periodontal membrane, both large- and small-diameter nerve fibers were found. And at least part of the innervation in the periodontal membrane was of trigeminal ganglion origin.

摘要

采用顺行放射性自显影神经解剖追踪技术（ARNT）对大鼠三叉神经节细胞至牙髓、牙本质和牙周膜的神经纤维投射进行了研究。结果显示，牙本质和牙髓中的神经支配并不均匀。神经末梢在牙髓角以及牙尖和颈部区域的管状牙本质中最为丰富。在牙周膜中，发现了大直径和小直径神经纤维。并且牙周膜中的神经支配至少部分起源于三叉神经节。