Can Bonding Be Removed Without Taking Away Any Tooth Structure? How Should It Be Done?

In order to maximize tooth structure and not "lose" any more enamel these are the tips that we use.

1. Etch the restoration and tooth and then dry. The restoration will be a different color and the tooth will appear chalky giving the dentist a guide on where to begin

2. The use of an air abrasion unit that uses aluminum oxide powder can selectively remove composite and retain solid enamel

3. You need to determine is the original bonding procedure consisted of any enamel reshaping, because the tooth may be shaped differently and some restorative procedures may be needed to get the correct shape.

4.We also have a microscope to magnify the area by approx 16x and this really helps. A microscope is not a must but some sort of magnification or loupe should be used.

Any time I work with old bonding, I remove it.  We have been doing this for years-You can tell the difference between the plastic and tooth enamel in most instances.  There are carbide burs that can do this safely.  While you always run the risk of removing a little enamel, I have never had a problem with this procedure. 

We also have the KCP(Kinteic Cavity Preparation) air abrasion system that can spray off the last flicks of bonding once we have removed enough of the bonding. 

Talk to your orthodontist and don't worry.  Reshaping is routine.  Taking x-rays and doing an evaluation is important and worth while for planning your treatment.  You will be thrilled with your results!!!