Crown behaviour during cementation.

Abstract

Complete seating of restorations during cementation is hindered by the need for excess cement to be expressed. It has been shown that postcementation seating is usually worse than precementation seating. Techniques have been developed to minimize this problem, including venting, die spacing and limiting cement placement, and these techniques are reviewed. The behaviour of the crown during cementation is considered, and consequences of crown cementation are discussed.