This is called a dental dam. It's, uh, something that can prevent

Dental Dam: How to Use It and Why You Should

Dr. Hornbrook's Dental Practice Enhancers: Using the STA Wand Pt. 2 - Keating Dental Lab

How to Use a Dental Dam

Because of the alarming amount of WLW and nmlnm who don't use and don't know how to use a dental dam I am posting this. : r/actuallesbians

Dental Dam: How to Use It and Why You Should

Doc, I Can't Breathe!” (Why a Rubber Dam Might be the Answer) - Dental Success Network

Dental Dams, Health Promotion

How to Use a Dental Dam

Age-by-age guide to helping keep your kids cavity-free