Effects of different bleaching agent concentrations on surface roughness and microhardness of esthetic restorative materials

Conclusion The effect of bleaching depends on the concentration of CP. The higher surface roughness was produced by 35% CP. Bleaching with different concentrations did not reduce the microhardness of the feldspathic porcelain. However, microhardness of nano composite resin and resin modified glass ionomer specimens were affected by 20% CP and 35% CP .
Source: The Saudi Journal for Dental Research - Category: Dentistry Source Type: research