From: Maarten Meire
To: ROOTS
Sent: Monday, February 15, 2010 1:51 AM
Subject: [roots] Molar endo case

Here is a vital case from this week. The location of the mb2 was not that usual. Finding it was easy though
because blood was seeping from the entrance due to the hyperaemic pulp. Mb root with 2 canals, 2 foramina.
Handfiles, ProTapers, continuous wave. Fire on! - Maarten, Belgium





If you establish a proper glide path (at least ISO 10-15 K-file), you should not fracture an S1 in this kind
of canal (where the curvature is in the apical 1/2). I fractured a few S1's in case of a curve in the coronal
1/3 of a tight canal.

I would not advocate an F2 for the Mb root this case because this file is rather stiff and may tend to transport
the canal apically. Also important: when you reach WL with your rotary file, withdraw immediately!
Hope this helps - Maarten

Thank you,Maarten for your answer! I prepare the glide path with PathFIle and then I start to work with ProTaper!
I'? little frightened to post my case, because in here there are a lot of marvelous endodontists. But I think I'll
post a case or two soon! -

I love your case, really! How do you negotiate this kind of curvature with ProTaper, because I had several curvatures
like this and I've fractured a S1 in one of the canals? And it took me another 2 apointments to get rid of the
fractured instrument and I'm a little bit frightened when I see a case like this on the PreOp! - Bojidar Kafelov

Beautiful work (as always :) ) Maarten! - Rafaël