Filling displacement after apicectomy with different instruments: A scanning electron microscopic study

Carlos Alberto Herrero de Morais, Fabrício Dias de Souza, Hugo Ricardo Croti, Danilo Mathias Zanello Guerisoli, Marco Antonio Húngaro Duarte

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.

Keywords: Apicectomy. Apical surgery. Filling displacement. Filling space. Filling. Root resection.

How to cite: 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

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