Introduction: A scanning acoustic microscope (SAM) is an apparatus for imaging properties. This can non-invasively and rapidly evaluate the hardness of materials in elastic region. device shows great potential diagnosis dental caries clinical setting. However, since tissue modulus measured using a SAM property region Knoop plastic region, properties differ completely. Therefore, we investigated...

statement of problem: the effect of mouth washes on discolouration of dental ceramics with different surface preparations is not well documented. objectives: this in-vitro study has been conducted to evaluate the effect of chlorhexidine (chx) mouth rinse on colour stability of overglazed (op), autoglazed, (ap) or polished porcelain (pop) specimens. materials and methods: the restorative materia...