Dental and Health History
X-Rays
There are three different kinds of x-rays that your dental professional will take at certain visits, depending on your situation. Bitewings: In adults, bitewing x-rays are a series of four images. For younger children who have fewer teeth, two bitewings (one on each side) is enough to see what’s needed. This type of x-ray set is usually taken once per year. They’re great for showing any cavities that are between the teeth, which can’t be seen when the dentist visually looks into your mouth. Many people don’t floss like they should, which leads to decay in these areas. Only the body of the back teeth appears in bitewings. There are only four images needed because one film alone can show up to three or four teeth on the top and the bottom jaw. Full Mouth X-Rays (FMX): A series of x-rays of all of your teeth is called an FMX. Unless you’re having trouble, this is normally done once every 3-5 years. It consists of about 18 films, which show anywhere from one to four teeth per film. This set includes the bitewings, along with PAs (periapical) images. PAs show the entire body of the tooth as well as all the way around the tip of the root and the jaw bone. Since nerve tissue is apparent, this type of x-ray is useful in diagnosing an abscess or crack. If you require an extraction, the dentist can also look at the size, length, and curvature of the roots to decide if you should be referred to an oral surgeon. Panorex or Cat-Scan: This single image displays some very important things. In small children, a panorex will show if they have all of their permanent teeth developing properly or aid in orthodontic assessments. In young adults, this x-ray will allow a dentist to see how the wisdom teeth are developing and if they’ll end up causing any future trouble. If they think the teeth should be extracted, they can look at the roots (as with the periapical) and nerves, to decide if a referral to a specialist is necessary. A panoramic film is usually taken every five years. Along with cat-scans, they’re the most comfortable for the patient. The only requirement is that you sit in a chair, or stand in the proper position, and the imaging unit rotates around your head. It takes a matter of seconds to complete. Periodic review of this type of x-ray will also help check for tumors, as well as aid in treatment planning for dental implants, full mouth rehabilitation, or TMJ therapy.

