Categories of this blog are

Tooth vital- tooth necrotic (Any canal necrotic then tooth considered necrotic)

# (teeth with MB3 present- able to cleanse and shape the MB3) – (teeth with MB2 present- able to cleanse and shape the MB2 – MB2 join MB1 – teeth I consider calcified that no MB2 was found) – total # of 2nd

molar treated

MB2 distance from MB1 – join MB1

12-6=18

(1-1)-(11-8-4-0)-18

MB2 too small to fully cleanse and shape.  This MB2 was way in the palatal canal

MB2 far from MB1 very small

MB2 filled

Update – patient returned with symptoms – CBCT showed very little

Opened all canals again and MB2 and MB1 fin was found and piezo out.  MB2 successfully cleansed and shaped to full length

CaOH placed at this point but sure I found the problem!