Radiographic evaluation of extruded obturation materials.
The radiographic appearance of filling material extruded into periradicular tissues during obturation of root canals was studied over time. Recall radiographs for up to 6 1/2 yr were compared with immediate postoperative films. Consistently, less material was evident at successive postoperative periods. This study indicated that given time, the two zinc oxide and eugenol-based sealers studied will be removed from periradicular tissues. It also indicated that sealer is removed from periradicular tissues more rapidly than gutta-percha.
Augsburger
R A
RA
USA DENTAC, Fort Huachuca, AZ.
Peters
D D
DD
D005119:Extravasation of Diagnostic and Therapeutic Materials / Q000000981:diagnostic imaging*; D005500:Follow-Up Studies; D006171:Gutta-Percha / Q000009:adverse effects; D006801:Humans; D015588:Observer Variation; D011859:Radiography; D012389:Root Canal Obturation / Q000009:adverse effects*; D013997:Time Factors; D015035:Zinc Oxide-Eugenol Cement / Q000009:adverse effects
D015035:Zinc Oxide-Eugenol Cement; D006171:Gutta-Percha