Adhesion of Hydroxyapatite Nanoparticles to Dental Materials under Oral Conditions

Figure 8

SEM micrographs at 5,000-fold magnification of the pellicle and the nano-HAP on PMMA samples. The pellicle formation and the hydroxyapatite particles are visible at three different time-points: immediately, 30 min and 2 h after mouthwash with 5% HAP I, HAP II, and HAP III. White arrows point to HAP particles accumulated onto the PMMA surface.