Effect of thermocycling on bond strength and elasticity of 4 long-term soft denture liners.

Statement Of Problem: Two problems found in prostheses with soft liners are bond failure to the acrylic resin base and loss of elasticity due to material aging.

Purpose: This in vitro study evaluated the effect of thermocycling on the bond strength and elasticity of 4 long-term soft denture liners to acrylic resin bases.

Material And Methods: Four soft lining materials (Molloplast-B, Flexor, Permasoft, and Pro Tech) and 2 acrylic resins (Classico and Lucitone 199) were processed for testing according to manufacturers' instructions.