Evaluation of canal transportation and centering ability of Two Root Canal Systems Xp-Endo shaper and Reciproc Blue Using CBCT- An in vitro experimental study

Abstract

Background & Aim: This research aimed to evaluate canal transportation and centering ability of Xp-Endo Shaper and Reciproc Blue 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 Xp-Endo Shaper (Group A) and Reciproc Blue (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 that there were statically important differences between the two groups in canal transportation and centering at the three levels.

Conclusions: XPS showed less transportation and more centering ability than Reciproc Blue in curved canals instrumentation.