Routine dental exams are important to maintaining healthy teeth and gums. They can help to avoid the financial costs associated with large treatment plans later on. The Academy of General Dentistry recommends twice yearly checkups for people of all ages. At this frequency, most problems can be caught while they remain in an early stage.

How it's done
The dentist first examines your mouth visually, using dental equipment such as mouth mirrors, assorted dental instruments, and illumination. They will look for cracked and/or decayed teeth, as well as review other important items such as:
 

• Medical history: The dentist will assess how any new medical conditions or illnesses may affect your dental health.
• Examination of tooth decay: Your mouth will be checked for cracked or decayed teeth.
• Oral cancer screening: The face, neck, lips, tongue, throat, tissues, and gums will be checked for any signs of oral cancer.
• Gum disease evaluation: Your gums and bone around the teeth will be checked for any evidence of periodontal disease.
• Examination of existing restorations: Fillings, crowns, and other restorations are checked and evaluated.

Additionally, your dentist will take diagnostic x-rays to reveal any other hidden problems, especially between the teeth and in the areas below the gums. They also can detect abnormalities of the bone and soft tissue that are not detectable with just a visual exam. X-rays are typically taken every 12 months or as necessary.