Source: Supra-Gingival Minimally Invasive Dentistry: A Healthier Approach to Esthetic Restorations, published by Wiley-Blackwell Traditional GV Black-inspired preparation rules do not apply to direct composite techniques. These include Extensions for prevention No enamel without dentin support Geometric shape preparations Creating gingival clearance by dropping the box To facilitate the development of more appropriate preparations for direct bonded composite restorations, understanding... read more »