Effects of dental trauma on pulpal and periodontal nerve morphology.

Effects of dental trauma on pulpal and periodontal nerve morphology. Research Abstract Details 

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Effects of dental trauma on pulpal and periodontal nerve morphology. Abstract Text:

I Kvinnsland,K J Heyeraas,M R Byers,

Regeneration and morphological changes in sensory peptidergic nerves in pulp and periodontium were studied after general dental trauma by means of immunohistochemistry. In control teeth also the total nerve supply was demonstrated by using antibody to the general neuronal marker, protein gene product (PGP)9.5. Two experimental rat models were used, i.e. tooth replantation and induced traumatic occlusion. Results from these studies are reviewed here. In the controls, the PGP9.5-immunoreactive(IR) nerve supply in pulp and periodontium was generally denser compared to CGRP-IR and SP-IR nerves. In the replanted teeth, regeneration of CGRP-IR nerves closely followed the pulp cell renewal. Density and distribution of the regenerated nerves showed two different patterns which seemed to depend on the capacity of the renewed pulp to form postoperative dentine. The nerve density never reached the same level as the controls. In teeth not able to form irregular dentine, the pulp was sparsely innervated and the pulp cavity was filled with innervated bone. Nerve responses in CGRP-IR and SP-IR nerves after unilateral induced traumatic occlusion in the first maxillary molar were studied at different observation periods up to 30 days. After 5 days, localized morphological nerve changes were found both in the pulp and periodontium within the total rat molar dentition. With increasing observation periods, the pulpal neural changes progressed and were extended to all pulpal areas compared to the periodontium, where the nerve responses remained localized to cervical and apical tissues throughout the experiment.

Effects of dental trauma on pulpal and periodontal nerve morphology. Publishing Authors By Initials

I Kvinnsland,KJ Heyeraas,MR Byers,

For similar surgical procedures, operative: oral surgical procedures: tooth replantation research abstracts see: surgical procedures, operative: oral surgical procedures: tooth replantation research

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Effects of dental trauma on pulpal and periodontal nerve morphology. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: Proceedings of the Finnish Dental Society. Suomen

VOLUME: 88 Suppl 1

Page Numbers: 125-32

Journal Abbreviation:

ISSN: 0355-4651

DAY: 21

MONTH: 02

YEAR: 1992

Effects of dental trauma on pulpal and periodontal nerve morphology. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 366632

Effects of dental trauma on pulpal and periodontal nerve morphology. Keywords Mesh Terms:

KEYWORDS: Tooth Replantation

MESH TERMS: innervation

Chemical & Substance for Abstract: Effects of dental trauma on pulpal and periodontal nerve morphology. Information

Substance Name: Calcitonin Gene-Related Peptide

Registry Number: 83652-28-2

Grant and Affiliation Information for Effects of dental trauma on pulpal and periodontal nerve morphology.

AFFILIATION: Department of Cariology and Endodontics, University of Bergen, Norway.

Country: FINLAND

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MEDLINETA: Proc Finn Dent Soc

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