CoForm from Direct Dental is a pretty nifty little product. It’s a pre-formed transparent matrix system that designed specifically to be used with Class IV composite restorations or when faced with a variety of tooth fractures.
The technique is pretty simple. Fill the tooth preparation in layers like you would normally. Then, when you’re ready to place the last layer, rather than shaping and curing, press the CoForm celluloid plastic matrix onto the uncured composite to create the anatomy of a healthy tooth. That’s when you cure the composite…right through the clear matrix.
Dental Product Shopper evaluators used CoForm in their pratices and gave it a Recommended Product score. One evaluator said, “[CoForm provided] smooth, polished edges and great contour.” You can read the full evaluation here.