ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Jaw X-ray. Coloured cephalogram (jaw X-ray) superimposed on a photograph of a woman having a cephalogram taken. The woman's head is in a brace to hold it in the correct position. Cephalograms are used in cephalometry, the measurement of structures in the jaw. Cephalometry is used in orthodontics for diagnosis, treatment planning, evaluation of treatment and prediction of bone and teeth growth.
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