Objective:To investigate the distribution of calcitonin gene-related peptide immunoreactive(CGRP-IR) nerve fibers in periodontal tissue of rats, providing morphological data of CGRP in periodontitis.

• 目的:观察降钙素基因相关肽阳性(CGRP-IR)神经纤维在大鼠牙周组织中的分布,为进一步研究CGRP在牙周炎发病中的作用提供形态学依据。