The chapter starts with discussion about advantages and disadvantages of composite restoration, indications and contraindications for composites. Preliminary clinical considerations for composite restoration is discussed, this is followed by basic principles in tooth preparation design for composite restorations. Then the chapter discusses about restorative technique for composite restoration like bonding agent application, composite placement, problem areas in composite restorations and polishing composite restorations. Basic fundamental principles in tooth preparation for Classes I and II composite restoration is discussed both initial and final stages of tooth preparations is dealt extensively. Modifications in Class II preparations like tunnel preparations, slot preparations, and internal tunnel preparations are discussed. Anterior composite restorations like Class III and IV restorations are discussed elaborately; both cavity designs like modified and bevelled conventional designs are dealt. The chapter finishes off with discussion on class v composite restoration both its advantages and disadvantages are discussed.