During a restorative procedure, what is the function of the mylar strip?

The function of the mylar strip during a restorative procedure is to protect adjacent teeth. Mylar strips are often used in direct restorative procedures, particularly when placing composite resin fillings. They serve as a barrier to prevent the restoration material from bonding to neighboring teeth and ensure that the shape and contours of the tooth are maintained during the procedure. By placing a mylar strip, the dental assistant or practitioner helps to provide a clean surface for the filling material and protects adjacent tooth structures from any potential damage caused by the restorative materials or techniques being employed.

The use of the mylar strip also aids in ensuring that the composite material can be properly shaped and polished without interference from neighboring teeth, thus contributing to the overall success and aesthetic quality of the restoration.