Assertion: enamel's surface | /r/HasProperty | little rough
Facets:
Source sentences:
text: "Enamel shaping is used when a tooth needs very fine adjustments -- when the surface is a little rough, for instance, or one tooth is a little squarer than a matching tooth," says Kellee Kattleman Stanton, DDS, spokeswoman for the American Academy of Cosmetic Dentistry.