Application of Scanning Acoustic Microscopy for Detection of Dental Caries Lesion

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 whether impedance related to hardness, which used as standard removal carious dentin. Method: Polished sections were prepared from 20 extracted wisdom teeth. The each section. In addition comparing healthy dentin images, evaluated difference between terms hardness. We also correlation impedance. Results: images visualized two-dimensional color based on values. mean was significantly lower than that dentin, showing similar trend strong observed two. Discussion: values obtained through microscopy differed sound Both types dentins images. value, indicates results present study indicate accurately reflects