Digital radiography is a type of X-ray imaging that uses digital X-ray sensors to replace traditional photographic X-ray film, producing enhanced computer images of teeth, gums, and other oral structures and conditions.
Digital dental images are acquired through three methods: the direct method, indirect method and semi-indirect method. The direct method uses an electronic sensor placed in the mouth to record images. The indirect technique uses an X-ray film scanner to view traditional dental X-rays as digital images. The semi-indirect digital technique combines a sensor and scanner to convert dental X-rays into digital film.
Digital dental radiographs can be taken inside (intraoral) or outside (extraoral) the mouth. Intraoral X-rays, the most commonly taken dental X-ray, provide great detail and are used to detect cavities, check the status of developing teeth and monitor teeth and bone health.
Extraoral X-rays do not provide the detail of intraoral X-rays and are not used to identify individual tooth problems. However, they are used to detect impacted teeth, monitor jaw growth and development, and identify potential problems between teeth, jaws and temporomandibular joints (TMJ), or other facial bones.
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