Dental professionals can often detect marijuana use based on several physical indicators. These indicators can include dry mouth, which can lead to cavities and gum disease; tooth decay, as marijuana smokers tend to consume sugary snacks that contribute to tooth decay; and gum disease, as marijuana smoke can irritate the gums and cause inflammation.
In addition to these physical indicators, dentists may also be able to detect marijuana use through saliva tests, which can reveal the presence of THC, the active ingredient in marijuana. Saliva tests are becoming increasingly common in dental offices as a way to screen for drug use, and they can be a valuable tool for dentists in identifying patients who may be at risk for oral health problems related to marijuana use.





