Abstract
The effects of zinc oxide and eugenol, Telfa, a eugenol-containing periodontal dressing, and a non-eugenol-containing dressing were tested against periosteal and denuded skull bones of Sprague-Dawley rats. Periodontal dressings when placed against bone denuded of periosteum provoked a greater inflammatory response with less evidence of repair than when placed against periosteal-covered bone. Eugenol containing dressings, elicited a greater inflammatory response with less evidence of organization than non-eugenol containing dressings against denuded bone. A synthetic perforated dressing(Telfa) caused the least inflammatory response with more rapid repair.