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Histological study of periapical tissue healing in the rat molar after retrofilling with various materials
H Maeda1, I Hashiguchi, H Nakamuta
1Department of Operative Dentistry and Endodontology, Faculty of Dentistry, Kyushu University, Fukuoka, Japan.
Journal of Endodontics
|April 10, 1999
Abstract:
We histologically examined the effects on the periapical tissue of various dental filling materials applied as retrofillings in rats and compared them with those of amalgam. The 4-META-TBB resin Superbond and the light-cured composite resin produced the least severe inflammatory reaction, with the greatest amount of new bone. In these specimens, regeneration of a part of the periodontal ligament was also observed. These results indicate that these materials might be very biocompatible and thus foster the natural regeneration of the periapical tissue.