Can a Dentist Tell if You Give Head? The answer to this question is not as straightforward as one might think. There are a number of factors that can affect whether or not a dentist can tell if someone has given oral sex, including the individual's oral hygiene habits, the frequency with which they perform oral sex, and the type of oral sex they perform.
In general, dentists are trained to look for signs of oral cancer and other oral health problems during routine checkups. These signs can include white or red patches on the gums or tongue, bleeding gums, and swelling or pain in the mouth. If a dentist observes any of these signs, they may recommend further testing to rule out oral cancer or other health problems.