Conservative dentistry, a treatment process whereby a minimum of healthy tooth structure is removed during the restorative process, is inherently a desirable dental objective. Natural enamel and natural dentin are still the best dental materials in existence, and thus, minimally invasive procedures that conserve more of the original, healthy tooth structure are preferable.

Minimally invasive dental procedures are beneficial from a patient’s point of view as well. There is less discomfort, less need for local anesthesia, and a real prospect that the repaired natural tooth will last a lifetime. The replacement of existing amalgam restorations with newer amalgam involves ever larger restorations that have shorter life spans than their predecessors. The replacement procedures may nick or otherwise damage adjacent healthy teeth.