Material for cementing the post
| The opinions within this web page are not ours. Authors have been credited for the individual posts where they are. - www.rxroots.com photograph courtesy: Marga |
Thank you Marga, Why was 2 posts in bicuspids, do you recommend always to insert 2 posts?
and how about long term success of bicuspids with post and core? - Raghu
Hi Raghu,
First of all I try not to remove extra tooth structure to make room for the post, I try to accomodate
the post in the availabe space. If the smallest post will not fit, I take a post drill and first try
to use it with handforce, that gives me more control.
The less tooth structure you have the more flexure you get with a fiber post. A fiber post supposedly
has about the same modulus of elasticity as dentin, but is much thinner and, therefore, flexes more
than the tooth when forces are applied. This makes it less likely to break the root, but also makes
it more likely to have leakage under the core if there is not enough remaining tooth structure to resist
lateral forces. One of the reasons that I used 2 posts here is to increase the stiffness. - Marga
Very nice, as always, Marga. What post are you using? And is that plastic matrix commercially available,
or do you make them yourself by cutting a crown form? DougR
Thanks Doug.
In this case I used the tapered FibreKleer posts of Pentron. The plastic matrix is a core form,
from which I cut the occlusal part away with a scalpel. I turn it upside down, insert it in the sulcus,
so that the smallest diameter is at the cervical part of the tooth that has to be restored, and the
widest part is going to be at the occlusal surface. This gives you a kind of a tooth model.
A wedge is usually not necessary, and I don't bother with the weird shape after you have removed
the form, you can easily adjust this with a diamond and a finishing bur.- Marga
And strongest and fastest setting. 4 minutes with or without lights. And is my choice for cementation of
a post in the rare instance I place one. Bruce has a winner with the stuff.- gary
hi dr raghu , i have a thing that work well , use duolink (bisco and their dual cure core build up ,
BISCORE , THEY WORK EXCELLENT AND R ECONOMICAL TOO HOPE THIS HELPS - Gurpreet Singh
Speaking of economical factors, Build-it is by far the least expensive dual cure core material.
- Marga
