Evaluation of canal transportation and centering ability of Two Root Canal Systems HyFlex EDM and WaveOne Gold Using CBCT- An in vitro study

Abstract

Aim of the study: This research aimed to evaluate canal transportation and centering ability of HyFlex EDM and WaveOne Gold instrumentation systems in curved canals using cone beam computed tomography (CBCT).

Materials and methods: The study sample consists of 40 curved root canal for extracted molars  (20 root canal in each group) with curvature of 20ﹾ to 40ﹾ (according to Schneider), canals for molars planted in acrylic molds were instumented by HyFlex EDM (Group A) and WaveOne Gold (Group B).

Pre and Post- instrumentation CBCT images were taken. Then, canal transportation and centering ability were calculated by using the formula produced by Gambill et al. for each canal in three horizontal levels (3,5,7 mm) from the apex to the furcation (cervical, moderate, apical).

Data was analyzed using independent  T-test. A significant difference was detected at a level of P≤ 0.05.

Results: The current study showed no statistically significant difference among the two groups canal transportation and centering at the three levels.

Conclusions: Both systems were efficient instrumenting curved canals. Both of them maintain the original shape of the root canal.