Elsevier

Journal of Endodontics

Volume 7, Issue 7, July 1981, Pages 309-316
Journal of Endodontics

Pulpal changes in replanted and autotransplanted immature teeth of dogs

https://doi.org/10.1016/S0099-2399(81)80097-0Get rights and content

The purpose of the present investigation was to study pulpal changes in replanted and autotransplanted immature teeth 4, 10, 30, and 180 days after the operation. At the end of the observation periods, angiography was performed and the dogs were killed. The teeth were sectioned at 4μm in a buccolingual direction and stained with hematoxylin and eosin, or with the van Gieson or the Brown and Brenn methods. However, repair occurred through ingrowth of a well vascularized, cellrich connective tissue that reached the pulp horn after approximately 30 days. In the majority of the teeth observed after 180 days, the soft tissue of the pulp was markedly reduced in cells and blood vessels. Cell-containing atubular hard tissue occupied most of the original pulp cavity. In a few teeth, the original pulp tissue seemed to have survived. In these teeth, the pulp exhibited a normal appearance with an intact odontoblastic layer.

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    This study as supported by grants from the Faculty of Octontology, University of Lund.

    1

    Dr. Skoglund is research associate, department of oral surgery, School of Dentistry, University of Lund, Malmö, Sweden.

    2

    Dr. Tronstad is professor and chairman, department of endodontics, Universty of Pennsylvania, School of Dental Medicine, Philadelphia.

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