Single-visit, adjacent composite onlays--a dual-catalyst, inert gas-processed chairside technique

Considerable research has been conducted on laboratory-processed composite resins in the last two decades. Substantial long-term studies support the theory that physical properties improve greatly if these composites are processed under high-pressure inert gas. In addition, the use of dual catalysts (light and heat) will generate higher conversion rates in the composite. This article describes a clinical technique for fabricating adjacent onlays or three-quarter crowns in a single visit that capitalizes on the inert gas and dual-catalyst research.