Fig. 2From: Multiple root canals in the maxillary molar: an unusual case reportWorking length radiograph of tooth #16 in the a mesiobuccal, b distobuccal, and c palatal roots. The MPR views of CBCT showing canal configuration in the d mesiobuccal root canal, e distobuccal root canal, and f palatal root canal. g Access opening showing the six root canal orifices. h Master cone fit. i Post-obturation radiographBack to article page