TMA offers valuable insight of materials properties -

Thermomechanical analysis, TMA, can provide valuable information on materials which influence on production conditions for dental restorations that is difficult to obtain by other analytical techniques.

Stress relaxation in titanium-ceramic beams during veneering -

Spalling of a ceramic from the metallic substrate is related to stress at the metallo-ceramic interface of crowns. The purpose of this study is to (1) establish a method for recording the bending radius of metallo-ceramic strips during cooling, (2) calculate the stress in the metal adjacent to the metallo-ceramic interface based on the recorded bending and (3) compare this stress with that calculated from the mismatch between measurements of the coefficients of thermal expansion, alpha, of the ceramic and titan.