A dentist's job is to help the patients to maintain a healthy mouth and teeth. This requires an examination of the mouth and teeth when there is a problem, and the preparation and execution of plans for the treatment and restoration of teeth. The main work of a dentist's involves treatment of diseased mouths and gums; extraction of teeth that cannot be saved, or might spread an infection to the rest of the mouth; fillings in the treatment of cavities; Surgery of the mouth and jaw; replacement of extracted teeth through surgery or other processes; cleaning of the patient's mouth and teeth; corrective work to align or straighten teeth; dentures i.e. the making and fitting of false teeth and preventive work which involves routine check-ups for both adults and children. Dental Assistants and Hygienists in addition to assisting the dentist during a variety of procedures such as clean and scale teeth, place temporary fillings, does other specific tasks including taking and developing dental radiographs (x-rays), sterilizing instruments and equipment and making impressions of patients' teeth etc.

Excellent employment opportunities are available for dentists in dental departments in hospitals, nursing homes, dental clinics and health departments as well as teaching departments in dental colleges. Apart from this, dentists could also work in the Research and Advisory functions of a pharmaceutical and other companies producing oral care products and medicines like toothpaste, mouth wash, gum care products, etc. Self-employment is also a promising avenue.

With gaining experience, one can start his/her own individual practice. Many dentists prefer to be in private practice, as it provides the best financial prospects as well as greater independence. Private practitioners work either alone, often setting up a clinic on their own premises, or in partnership with colleagues, sharing resources and overheads. Besides these, in dentistry one can also take up work as a Dental Hygienist, Dental assistant or as a Dental consultant to models and film artists which could fetch a lot of money.