Types of X-Rays
There are several types of X-rays, each one serving a unique purpose. Depending on what dentists are trying to find out, they might order any of these types of X-rays:
A bitewing X-ray studies the crowns of the upper and lower teeth in one area of the mouth, for instance, the molars and premolars. It can be used to looking at cavities or decay between teeth and monitoring previous fillings' wear or breakdown.
Focusing on just one or two teeth, periapical X-rays show the entirety of your child's tooth, from crown to root.
By tracking the placement and development of the entire arch of teeth in either the top or bottom jaw, occlusal X-rays can be used to see how the teeth fit together when your child bites down.
A panoramic X-ray will show your child's whole mouth in one X-ray – all the teeth in both the upper and lower jaws. These X-rays can be used to see emerging teeth, impacted teeth, or tumors.
A cephalometric X-ray shows both your child's teeth and the jaw and head by taking an image of the entire side of your child's head. It can help in planning orthodontic treatments.
Cone Beam Computerized Tomography
Unlike the other types of X-rays mentioned, cone beam computerized tomography provides a 3D view of your child's mouth.