Metal-free restorations: Clinical considerations

Abstract

Porcelain is known to be the most aesthetic material for dental restorations. Dental porcelains have had to be reinforced with metal substructures in the past due to their unpredictable strength. However, clinicians have often faced an aesthetic challenge when restoring anterior teeth with porcelain-fused to metal restorations. A demand for a more aesthetic alternative has led to the evolution of metal-free restorations. This article discusses the various metal-free ceramic systems available, their applications, including their margin configurations and cementation protocols and specific indications and advantages of each system. Clinical evidence and experimental studies have been reviewed to provide an evidence-based application of these materials in different situations.