In our clinic, there is no shortage of patients coming in to replace old anterior dental restorations. The most frequent reasons for replacement are exposed metal margins and unnatural color, although splinted crowns are pretty popular as well. When the underlying tooth have gone through root canal therapy, we can oftentimes expect to see a discolored abutment, a metal post, or both. The bottom line is that the unwanted colors will need some kind of cover, and over time I’ve grown to appreciate these opportunities to try different products and techniques. In this case I used the Empress Direct from Ivoclar.
Clinically, the biggest issue with the opaque resin is that it is very unforgiving during the trimming process, as removing too much of the resin can occur suddenly, forcing re-application of the product. Leaving too much resin, on the other hand, necessarily increases the cement space of the restoration and thereby weakening its overall integrity. It’s a balancing game, but I think once due diligence is paid, the outcomes can be very satisfying.
Hsuan is a lecturer at CEREC Asia Training Facility and the founder of Tooth Faerie Club. He is from Vancouver, Canada, and is a fan of prosthodontics and profanity.