Canal transportation and centering ability of curved root canals prepared using rotary and reciprocating systems

AUTOR(ES)

Barbosa-Ribeiro, Marlos, Albergaria, Silvio José, Malvar, Maria de Fátima Gesteira, Crusoé-Rebello, Iêda Margarida, Gomes, Brenda Paula Figueiredo de Almeida, Carvalho, Fabíola Bastos de

FONTE

Braz. J. Oral Sci.

DATA DE PUBLICAÇÃO

2015-09

RESUMO

Abstract Aim: To evaluate canal transportation and centering ability of Protaper and WaveOne systems in curved root canals by cone-beam computed tomography. Methods: Twenty human molars were randomly divided into two groups according to the system used: Group GP (ProTaper Universal(r)) and group GW (WaveOne(tm)). CT scans were performed before and after the chemo-mechanical preparation on three points: 2 mm, 3 mm and 4 mm from the tooth apex. The cuttings in dentin were measured and results were statistically analyzed. Results: In GP, there was higher percentage in transport at 2 mm and 4 mm toward the mesial wall of the tooth root compared to GW (p<0.05). There was no difference between the systems regarding their centering ability. Conclusions: None of the systems was able to touch all the dentin walls and stay centered during the chemical-mechanical preparation.

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