Investigation Of Gold Content Of Oral Prosthesis And Adjesion Of Streptococcus Sanguis

The formation of oral biofilm is a prerequisite factor contributing to caries or periodontal disease, requiring pioneer bacteria, like Streptococcus sanguis (Ss), to adhere to the surfaces of oral tissues or dental prostheses. In this study, we checked the adherence abilities of Ss to various commercial prosthetic alloys to see whether gold content in these tested alloys affects bacterial adherence. Five alloys used in this study were 100﹪Au (pure gold,Gd), 88.4% Au (Jelenko Diamand,Je), 56﹪Au (Williams(NEW)WA-2,Wi) , 2﹪Au(Esteticor Biennor,Es) , and 0% Au(remanium Cs Re). The data showed that there were no significant differences between various groups , except between Gd and Je, and between Wi and Es. After plotting Ss adhesion vs. gold content in various timepoints in a linear regression model, we concluded that the gold percentage of clinical prosthetic alloys was not correlated to Ss adhesion ability.