Histological study of cell pulp response in replanted immature rat teeth

الملخص EN

Back Ground: Pulpal changes represented by cell renewal and ground substance formation and deposition specific tissue was studied in replanted teeth.

The aim of the study was to evaluate pulp response of replants immature teeth.

Materials and Methods: Fifteen rats of 3 days old aged was subj'ected to replantation process of upper Is' molar The were scarified after 7 days of replantation for histological analysis by Hematoxyline and Eosin stain and fo histochemical investigation by PAS stain.

' Results: There was a growth in replanted tooth germ (experimental group) in 12 of the 15 rats.

The teeth showed well organized and well vascularized pulp tissue with regenerative potential response was seen in pulp by apposition of newly ground substance detected by histochemical PAS stain.

Other 3 rats showed degeneration of replanted tooth germ.

Control rats group failed to show apposition of acid mucopolysaccharides as the experimental one.

Conclusion: Regenerative response for pulp cells recognized by well apposition of acid mucopolysacchrides substance in pulp tissue of replanted immature rat tooth.