Study of Surface Structure Changes for Selected Ceramics Used in the CAD/CAM System on the Degree of Microbial Colonization,<i> In Vitro</i> Tests

Abstract

In the article has been presented an analysis of susceptibility of selected dental materials, made in the CAD/CAM technology. The morphology and structural properties of selected dental materials and their composites were determined by using XRPD (X-ray powder diffraction) techniques, as well as the IR (infrared) spectroscopy. Moreover, an adhesion as well as development of biofilm by oral microorganisms has been studied. It has been shown that a degree of the biofilm development on the tested dental materials depended on microorganism genus and species. <i>Streptococcus mutans</i> has demonstrated the best adhesion to the tested materials in comparison with <i>Candida albicans</i> and <i>Lactobacillus rhamnosus</i>. However, the sintered materials such as IPS e.max® and the polished IPS e.max® have showed the best "anti-adhesive properties" in relation to <i>S. mutans</i> and <i>L. rhamnosus</i> that have not formed the biofilm on the polished IPS e.max® sample. Furthermore, <i>S. mutans</i> have not formed the biofilm on both surfaces. On the contrary to <i>S. mutans</i> and <i>L. rhamnosus</i>, <i>C. albicans</i> has demonstrated the adhesive properties in relation to the above-mentioned surfaces. Moreover, in contrast to <i>S. mutans</i> and <i>C. albicans</i>, <i>L. rhamnosus</i> has not formed the biofilm on the polished IPS Empress material.