Hard substance on teeth (6)
I believe the answer is:
enamel
(Other definitions for enamel that I've seen before include "art form" , "Hard glossy surface" , "hard stuff" , "Hard material" , "Glassy substance" .)
I believe the answer is:
enamel
(Other definitions for enamel that I've seen before include "art form" , "Hard glossy surface" , "hard stuff" , "Hard material" , "Glassy substance" .)