“I’ve been practicing dentistry for 22–23 years now,” says Dr. Nick Devani of Premier Smiles Dentistry in Cypress, California. “Class II restorations, in general, are the toughest thing that dentists have to deal with. They’re the hardest thing, in my opinion, because getting that contact just perfect is really a pain in the neck sometimes.” He continues, “When I first graduated, there were no sectional matrix systems. It was only tofflemire. That’s all we had. The biggest problem with using a tofflemire—and I used one for about 15 to 16 years, is that getting a nice, broad contact was always really tough. You’d get a pin contact, and a lot of times, that wasn’t enough. Patients would then complain about getting food impacted, about how their floss would go right through, and a lot of times we had to re-do those restorations to try and get a broader contact. So, over time, using tofflemire became very inefficient. According to industry averages, redoing a Class II restoration can cost $345 dollars in time and materials (data on file), not to mention the cost of a lost patient.