Endo xray protocol

Lower molars with two mesial canals and/or 2 distal canals may overly each other in the working length PA. It is useful to have a protocol e.g Distal canal and Buccal canal PA then Lingual canal PA. The 2nd PA can recapture the distal canal if it is incorrect.

Upper molars often have 2 MB canals (MB1/MBB, MB2/MBL). These may be overlaid by the palatal root. Therefore, a first PA with MB1 and MB2 and D with a 2nd PA to capture the Palatal canal may be useful.