<scp>CBCT</scp> for the assessment of second mesiobuccal (<scp>MB</scp>2) canals in maxillary molar teeth: effect of voxel size and presence of root filling

Abstract

CBCT was associated with higher mean values of specificity and sensibility than radiographic examination for the detection of MB2 canals. When endodontic retreatment is necessary removal of the root filling prior to the CBCT examination eliminates artefacts, thereby permitting the use of the 0.3-mm voxel protocol that has good diagnostic performance and lower radiation dose.