Abstract
Tissue conditioners are temporary materials used to improve the health of the soft tissues of the denture-bearing areas. They are soft and flexible, and because of their pliability, they allow the bruised and distorted soft tissues to return to their normal size and shape, as well as reduce inflammation and swelling. In 1991, the International Standard ISO 10139-1 was established by Technical Committee ISO/TC 106, Dentistry, Sub-Committee SC 2, Prosthodontic Materials.
The purpose of this study was to evaluate the physical and mechanical properties of some tissue conditioners using this standard test, and also to analyze the composition of these materials.
The results were as follows:
1. Consistency test
All materials in this study agreed with ISO standards.
2. Penetration test
Some materials, after 2 hours, were below these requirements, and it seemed that the results were influenced by concentration of ethanol. After 1 week, all tested materials fell within this standard.
3. There was evidence of a correlation between the consistency and the concentration of ethanol.
