The effect of partial damage to the enamel-related periodontium combined with root resection on eruption of the rat incisor eruption

Previous work has indicated that the enamel-related periodontium (ERP) has a role in the eruptive process of the rat lower incisor. By combining partial damage of this tissue with resection of the odontogenic organ, we examined the effect of the damage on subsequent incisor eruption. The connective...

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Bibliographic Details
Published in:	Archives of oral biology Vol. 49; no. 3; pp. 209 - 216
Main Authors:	Merzel, José, Nunes, Silvana F, Novaes, Pedro D
Format:	Journal Article
Language:	English
Published:	England Elsevier Ltd 01-03-2004
Subjects:	Aging - physiology Animals Dental follicle Dentistry Enamel Organ - injuries Enamel Organ - physiology Enamel-related periodontium Incisor - anatomy & histology Incisor - growth & development Male Periodontal Ligament - physiology Periodontium - injuries Periodontium - physiology Rat incisor Rats Rats, Wistar Tooth eruption Tooth Eruption - physiology Tooth eruption Enamel-related periodontium Rat incisor Dental follicle
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Summary:	Previous work has indicated that the enamel-related periodontium (ERP) has a role in the eruptive process of the rat lower incisor. By combining partial damage of this tissue with resection of the odontogenic organ, we examined the effect of the damage on subsequent incisor eruption. The connective tissue of the enamel-related periodontium was regenerated in less than 2 weeks, showing morphology close to normal. The injured part of the enamel organ was neither regenerated nor repaired, and a cement-like tissue, continuous with the true acellular cement, was formed on the denuded enamel. Before tooth exfoliation, the operated teeth erupted at a slower rate compared with root-resected and sham-operated incisors, probably because of the absence of a substantial part of the enamel organ due to surgical damage. As with the coronal dental follicle and the enamel organ in rat molars, the enamel-related periodontium and the enamel organ of rat incisors may have some control on their eruptive process.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0003-9969 1879-1506
DOI:	10.1016/j.archoralbio.2003.09.009