Categories of this blog are
Tooth vital – tooth necrotic
# 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 1st
MB2 distance from MB1 – join MB1
1-2mm – yes
This was a tough one. Anatomy was a 2-1-2. Could not maintain either apical patency, in fact never got the MB1. Can see two apical portals of exit. I removed the isthmus making this a 1-2 with a very deep split. This is CaOH if blow up PA can see split in last 1-2mm. Completed in Mendota.