Mechanical stability of dental materials

Abstract In the past decade, the quality of dental materials has seen more improvements than any other period. Dental materials are used either alone, or in combination, and their performance can be assessed on the basis of various properties. The mechanical properties of dental materials are primarily defined by the stress-strain relationship. The mechanical stability of dental materials explains their stability with respect to mechanical changes; that is, energy and forces, and their effect on bodies. Dental materials should be flexible under an applied force or distribution of forces. Although the mechanical properties do not necessarily represent their actual clinical performance, these properties are used to guide the effects of changes in their composition or processing on these properties. The mechanical properties also have the potential to help the dentist to choose the right materials, once comparisons have been made between former formulations and new ones, as well as with the leading brands highlighted by manufacturers.