Comparison of accuracy and reliability of CBCT and 3D laser scanner in the volumetric assessment of the root canal space.

Purpose: To compare the accuracy and reliability of cone-beam computed tomography (CBCT) and laser scanner in measuring minor volume changes such as the root canal space.

Methods: 35 maxillary incisors were endodontically prepared. A dimensionally stable silicone material was injected into the root canal space and scanned with CBCT.