Yes I have been told during negociations that a cover would be used. First time was at the Bunny Ranch where a piece of saran wrap was used, it was not all that bad and I eaisly got her off. The second time was at the Shady Lady where an actual dental dam was to be used. Hated it and will never use one again. I was as thick as a bath mat!! In fact I will not do either one again, but I had to give them a try just to see what was up.