What Is a Dental Dam? A dental dam is a square, stretchy sheet made from latex or polyurethane plastic. It blocks the body fluids that can spread sexually transmitted diseases (STDs). Most people ...

A dental dam can reduce the risk of spreading sexually transmitted infections during oral sex by covering the genital or anal area. A dental dam is a thin, flexible piece of latex that protects ...

After the first time I received oral sex, a friend chastised me: "You should've used a dental dam!" A what? I thought. A few weeks later a sex educator on my college campus explained: A dental dam is ...