V01N02 | 2011 | Original Article | Pages 28 to 33
Carlos Alberto Herrero de Morais, Fabrício Dias de Souza, Hugo Ricardo Croti, Danilo Mathias Zanello Guerisoli, Marco Antonio Húngaro Duarte
Apicectomy, Apical surgery, Filling displacement, Filling space, Filling, Root resection,
Objective: To evaluate the displacement of the filling in root canals after apical root resection using various instruments. Methods: Sixty extracted human canines had their crowns removed at the cement-enamel junction, were instrumented and filled 1 mm short of the apex and randomly assigned to six groups, according to the instruments used for apical root resection 3 mm from the apex. The displacement of the filling during the resection procedure was evaluated under a scanning electron microscope by measuring the gap formed between the root canal wall and the material. Results: Statistical analysis between groups was performed (Tukey-Kramer’s test), revealing that gaps between the filling material and dentinal walls were smaller in the group where Zekrya surgical burs were used, compared to the other tested instruments (p<0.05). Conclusions: Apical root resection using Zekrya surgical burs promotes less displacement of the filling when compared to the other tested instruments.
Morais CAH, Souza FD, Croti HR, Guerisoli DMZ. Filling displacement after apicectomy with different instruments: A scanning electron microscopic study. Dental Press Endod. 2011 July-Sept;1(2):28-33