Assertion: bleach's concentration | /r/CapableOf | expose porous surface
Facets:
Source sentences:
text: erosion.28,29 Interestingly, adding small amounts of calcium to acidic solutions may decrease enamel loss by up to 50%.29,30 Scanning electron microscopy studies6,16,19,20,31 have shown that a concentration of 10% carbamide peroxide alters enamel, causing surface dissolution and exposing a porous surface.