While classical cavity preparation design works well for amalgam, it may not suit composite, as composite resins have a lower diametral tensile strength. This observation led to the development of the Bioclear method, which alters cavity preparations using engineering principles and modern dental materials. Instead of filling a hole, a monolithic shrink wrap of composite resin is created around the tooth, resulting in a compression joint instead of a tension joint at the tooth/ composite interface. The tooth is repaired rather than restored, using a repeatable method that combines the simplicity and economic advantages of direct composite restorations with high aesthetics and strength.