Oral cancer is an extremely deadly cancer that is unfortunately not detected until the later stages.  When you go to the dentist for your routine exam, and oral cancer screening is typically administered by both the hygienist and the dentist.  However, a routine self-exam can also be very effective.  The website checkyourmouth.org will show you how to do a self-exam in about 5-10 minutes and is recommended to be done once a month.  The website has information about what you need, a self-discovery video, and instruction on how to do the exam.  There are also example photos of different lesions to look for in your mouth.  Doing the self-exams in between the biannual dental exams at the dentist is a great way to keep an eye on your mouth and will allow you to tell your dentist if you see or feel something suspicious.