Oral drug testing involves the collection of saliva samples from a person where it is screened and subjected to testing that determines whether drugs are in their system. This simple, instant test has many advantages, but should also be weighed against its disadvantages. Oral Drug Testing Advantages Oral drug testing is an easy, non-invasive test that provides little inconvenience, and is pain and discomfort free to the person being tested. There are two methods for oral drug testing, both of wh [...]