CLASS Il Class Il restorations on the other hand are often encountered, and difficult to manage. Module Il is designed heavily on hands on part. Building up a skill to choose, position and adapt the matrix, and build up a proximal wall that will act as a good foundation for further restorative steps. THEORY - Prep design - Matrix/ring/wedge selection and customisation - Proximal wall build up techniques - Finishing and polishing/contouring