[A study of calcitonin gene-related peptide-immunoreactive nerve fibers of rat molar pulp during traumatic occlusion and after removal].
OBJECTIVE
To study the effect of traumatic occlusion on CGRP-immunoreactive (CGRP-IR) nerve fibres in rat molar pulp and observe the recovery of CGRP-IR nerve fibres after removal of traumatic occlusion.


METHODS
To observe immunohistochemically the change of CGRP-IR nerve fibres in molar pulp during traumatic occlusion and after removal.


RESULTS
The increase of number, density and morphology of CGRP-IR nerve fibres in traumatic occlusion group was more than in control group, however, the changes of CGRP-IR nerve fibres in removal of traumatic occlusion group were less than in control group.


CONCLUSIONS
The changes of CGRP-IR nerve fibres in number, morphology, and density are induced by traumatic occlusion in rat molar pulp, however, the nerve fibres recover to normal by removal of traumatic occlusion.
Hao
Zuo-qi
ZQ
Department of Stomatology, The Second Artillery Lishilu Clinic of PLA, Beijing 100820, China.
Liu
Hong-chen
HC
Zhu
Mei-ling
ML
Duan
Li-jun
LJ
D000818:Animals; D015740:Calcitonin Gene-Related Peptide / Q000032:analysis*; D003769:Dental Occlusion, Traumatic / Q000378:metabolism / Q000473:pathology* / Q000628:therapy; D003782:Dental Pulp / Q000294:innervation*; D007150:Immunohistochemistry; D008297:Male; D008963:Molar / Q000294:innervation*; D009412:Nerve Fibers / Q000737:chemistry*; D051381:Rats; D017207:Rats, Sprague-Dawley
D015740:Calcitonin Gene-Related Peptide