[Adhesive technology and preparations for composites in the anterior sector]

The authors analyzec the possibility of introducing modifications in the traditional cavity designs for Class 3, 4 and 5 restorations using present adhesive techniques for bonding reinforced composite resins to tooth tissues. The concepts followed by classic authors are reviewed, compared to the characteristics recommended for new preparations and bases for their use are considered. It is concluded that it is possible to use more conservative and smaller preparations.