Assertion: crown | /r/HasProperty | permanent option
Facets:
value: for people with metal allergies
type: TRANSITIVE-OBJECT
Source sentences:
text: These crowns are first layered with metal for strength then color-matched to your other teeth Molded to fit directly onto your gum line, these crowns provide a quick-fix option Used for front and back teeth, these crowns are a more permanent option, especially for people with metal allergies