The Importance of the Contact Point in Class II Restorations
Dental News Volume XX, Number II, June, 2013 by Dr. Marco Calabrese Clinical case Class II restorations using composite resins present a number of technical problems, including the creation of a tight interproximal contact points. A tight proximal contact will balance the mesial and distal forces and prevent food impaction. For a while now, the use of preformed matrices and separator rings, in combination with wedges, has made it possible to obtain good restorations with satisfactory morphology. An even more efficient system has recently been introduced, which combines preformed matrices, innovatively designed wedges, and nickel-titanium rings providing optimum separation that remains consistent over time. This clinical case demonstrates the procedure for conservative restoration of teeth 15 and 14 using this innovative system. The radiograph (Figure 1) shows that the patient has a distal carious lesion of 14 and a mesial lesion of 15 (Figure 2). After isolatin...