Abstract
Abstract This study includes the ability of the four types of bacteria to adhere to the surface of the mouth epithelial cells and the results showed a significant difference in the ability of adherence among the species. The adherence on the epithelial cell is strong for Salmonella typhi and Pseudomonas aeruginosa, while the Staphylococcus aureus and Micrococcus luteus showed less ability of adhesion than the first two species. Also, this study revealed the capability of Salmonella typhi and Pseudomonas aeruginosa to agglutinate all types of blood groups that used in the study, while the Staphylococcus aureus and Micrococcus luteus do not agglutinate any one of human blood groups.
