Assertion: whitening's teeth | /r/HasProperty | covered with protective coating
Facets:
Source sentences:
text: These typically use a high concentration (15%-43%) of fast-acting hydrogen peroxide; the teeth not being treated and the surrounding gums are covered with a protective coating or rubber dam.
text: These typically use a high concentration (15%-43%) of fast-acting hydrogen peroxide; the teeth not being treated and the surrounding gums are covered with a protective coating or rubber dam.