Fig. 3From: Effect of hydroxyapatite nanoparticles on enamel remineralization and estimation of fissure sealant bond strength to remineralized tooth surfaces: an in vitro studySEM image of nano-HA (0.15%) deposition on the pretreated enamel surface (group 2). The white arrow shows the non-infiltrated area. The black arrow and circle show the infiltrated area. Abbreviations: nano-HA, nanohydroxyapatiteBack to article page