Patients should visit the dentist for a checkup and teeth cleaning at least twice a year. Regular dental cleanings and checkups are necessary to avoid dental problems and maintain the integrity of teeth and gums. A routine dental checkup usually includes a teeth cleaning and examination. The dentist may also check for signs of oral cancer, examine any existing dental restorations (i.e. fillings, crowns, etc.), remove tartar, review dietary habits, and suggest helpful dental aids.