title: Tissue reactions following apical plugging of the root canal with dentin chips in monkey teeth subjected to pulpectomy.
abstract: The tissue reaction following apical plugging of the root canal with dentin chips in monkey teeth subjected to pulpectomy was studied. The reaction was characterized by formation of a cementum-like tissue onto the chips, often walling off the root canal as well as accessory and lateral canals. Twenty-two of twenty-four teeth were rated as successful 95 days after pulpectomy. In the control groups, in which apical plugging of the canal with dentin chips was not attempted, ten of twenty-one teeth were rated as successful at this observation time. In six of the ten successfully treated teeth in these groups a dentin chip plug had been made, although care had been taken to avoid this. It is suggested that a plug of dentin chips is well tolerated by the tissues and may present an effective barrier in the apical part of the root canal, facilitating the accomplishment of a well-condensed, tightly sealing root filling.
mesh_terms: D000818:Animals; D003739:Dental Cementum / Q000502:physiology; D003804:Dentin / Q000502:physiology*; D006171:Gutta-Percha / Q000627:therapeutic use; D000882:Haplorhini; D010486:Periapical Tissue / Q000033:anatomy & histology*; D011670:Pulpectomy; D012387:Root Canal Filling Materials / Q000627:therapeutic use; D012389:Root Canal Obturation; D014945:Wound Healing
chemical_list: D012387:Root Canal Filling Materials; D006171:Gutta-Percha