Dental dam
A THIN, RECTANGULAR SHEET USED IN DENTISTRY TO ISOLATE THE OPERATIVE SITE
Dental dams; Dental Dams; Rubber dams; Smodnoc; Dental dam (oral sex); Dental dam (dentistry)
A dental dam or rubber dam is a thin, square sheet, usually latex or nitrile, used in dentistry to isolate the operative site (one or more teeth) from the rest of the mouth. Sometimes termed "Kofferdam" (from German), it was designed in the United States in 1864 by .