Clinical BUZZ Blog

Archive for the ‘Uncategorized’ Category

Practice Pack Prize Giveaway

Thursday, March 3rd, 2011

The good people here at the New Dentist have a great offer going on that all of our readers should know about!   The New Dentist is giving away a massive package to all that register at the following link:

http://www.thenewdentist.net/practicepack-signup.php
Included in the giveaway is New Dentist business training, a Sapphire curing light, Virtuoso flowable composite kit, an on-hold message system, Golden Misch Physics Forceps set, 6 Month Smiles training, and 1 year of ProSites Website hosting.  That is an incredible package.  Any one of those would be a fabulous prize to win, but the whole package is unreal.  You are looking at a total value of around $16,000.  This package would totally transform the winner’s practice.  I highly recommend everyone to go sign up ASAP and take advantage or a chance to win the best dental prize package I have ever seen!  I hope I am eligible!

Dentinal Bonding Degradation

Tuesday, February 22nd, 2011

A study published in The Journal of Evidence-Based Dental Practice recently examined how dentin bonds degrade over time. This was the first in vivo human study on bond degradation. It showed expected results. Over a 3 year time period, the bind between dentin and resin. After 3 years, bond strength decreased almost 60%.  The study did indicate some clinical steps that dentists can easily do to maximize bind strength. These included using a 4th generation three step dentin bonding system, improving impregnation of the hybrid layer by using multiple applications of resin primer, and ensuring adequate polymerization of the adhesive system.

Of course there is much in vivo human work to do studying bonding. This study goes a long way but there are still some questions. After the dentin bond has deteriorated, does the enamel bond that is theoretically there keep the restoration viable?  Certainly in traditional amalgam restorations there is no dentin bond yet they seem to last for years with no problem. Does the resin’s affinity for water absorption cause problems long term after the dentin bond has deteriorated. These are all questions we should be pondering when placing resin composite restorations.

Study citation:  In vivo degradation of resin-dentin bonds in humans over 1 to 3 years. Hashimoto M, Ohno H, Kaga M, Endo K, Sano H, Oguchi H. J Dent Res 2000;79(6):1385-91