X-Rays
Types of X-rays
periapical - single tooth, whole root; taken as indicated
bitewing - usually back teeth, half upper / half lower; usually two or four taken
full-mouth - all teeth, with both bitewing and periapical x-rays
panoramic - single film, entire mouth
cephalometric - side view of head for orthodontic measurements
X-ray intervals are determined by the risk. If new cavities or gum problems are detected, your risk for problems detectable by x-rays is greater and the interval should be shorter, otherwise the interval can be longer because of a lower risk level.
recommended x-ray intervals
full mouth/panoramic x-ray
once every 3-5 years
bitewing x-rays
once a year up to age 18
once or twice a year for adults
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