A student who wishes to treat diseases of the mouth may wish to study dentistry. Dentistry studies how to keep the teeth, gums, and other parts of the mouth healthy and how these parts interact with the body.

Certificate programs are educational units of study that help students to gain knowledge and experience under the tutelage of qualified individuals. Some students take these programs in order to have the skills needed to advance within their occupations.

Online learning refers to use of electronic media and information and communication technologies (ICT) in education. With online learning one has the flexibility to access their studies at any time and from anywhere they can log on.