A dental dam or rubber dam, designed in the United States in 1864 by Sanford Christie Barnum, is a thin, 6-inch square sheet, usually latex or nitrile, used in dentistry to isolate the operative site from the rest of the mouth. It is used mainly in endodontic, fixed prosthodontic and general restorative treatments.
•DO use a new latex or polyurethane dental dam every time you have oral sex.
•DO read the package and check the expiration date.
•DO make sure there are no tears or defects.
•DO put on before starting oral sex and keep it on until finished.
•DO use water-based or silicone-based lubricant to prevent breakage.
•DO store dental dams in a cool, dry place.
•DON’T reuse a dental dam.
•DON’T stretch a dental dam, as this can cause it to tear.
•DON’T use nonoxynol-9 (a spermicide), which can cause irritation.
•DON’T use oil-based products like baby oil, lotion, petroleum jelly, or cooking oil because they will cause the dental dam to break.
https://youngwomenshealth.org/2017/08/07/dental-dams/
