What is the correct order of steps when placing a class III composite with a rubber dam?

The correct sequence for placing a Class III composite restoration with a rubber dam begins with choosing the composite shade, followed by placing the rubber dam, and then placing the mylar strip.

Choosing the composite shade first is essential because it allows the dental assistant or dentist to select the most appropriate color that will blend seamlessly with the natural teeth. This choice can be influenced by the existing tooth color and the intended aesthetic outcome. Once the correct shade is chosen, the rubber dam should be placed to isolate the working area, ensuring a clean, dry field and minimizing contamination. This is crucial for achieving optimal bonding of the composite material.

Finally, the mylar strip is placed after the rubber dam. The mylar strip serves as a matrix to help shape and contour the composite material, particularly important in interproximal areas. The order of these steps is critical to ensure effective isolation, proper aesthetic integration, and successful placement of the composite restoration.