From: Fred Barnett
To: ROOTS
Sent: Sunday, February 26, 2006 8:35 PM
Subject: [roots] middle mesials

Nothing special.....Some basic stuff on troughing and how the floor should flow into the walls. - Fred




Fred:  On the contrary it is very special.
Is there anything that alerts you to look for MM other than troughing?
should we take in to consideration,  how far apart the MB & ML canals are for instance?
Is this anatomy discernable on the pre op x-ray? wire film? post op?
and finally, how would you recommend filing this canal so it doesn't get blocked or ledged?

BTW, are you using 950 or the A95? Very nice pictures.  - ahmad

Ahmad,

I connect the dots and trough a few mm's on every case.  On the angled pre-ops, if the mesial root looks especially wide,
I may be a bit more aggressive....but I always stay on the line and I am always cognizant of the furca.

When you look at Hess's work from 1928, I am humbled by the simple white lines that appear on my post-op radiographs.
- Fred



Yes, anatomy can be wild but even the wildest can be overcome with an understanding of shape, access, and development of a
thoughtful strategy that allows debridement and obturation of the clinically significant space leaving only the most
minute entombed crypts remaining and unlikely to cause recurrent pathosis.  Thank you Sir Walter for showing us what the
anatomy looks like and thank you Herb Schilder for showing us how to treat it!  - Terry

I'd add...Thank you Brown and Herbrason.....the 3-D Micro CT is gorgous for showing this on the computer...Joseph Dovgan

Terry, I agree with you. A strategy on creating pathways to the canals is required in order to debride and disifect them.
Proper magnification and illumination to see the subtle color changes of the "Road Map" is mandatory.  - Fred