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  • Digital radiographic systems usually designed for intraoral radiography. These systems include a conventional dental x-ray subsystem, either an imaging plate (computed radiography) or an intraoral detector (direct digital radiography), and a digital imaging system with a workstation and a monitor. The x-ray tube is usually located in a cylindrical tubehead mounted on an articulating arm positioned according to the view desired. Most dental radiographic system x-ray tubes have a voltage ranging from 50 to 100 kV and a current ranging from 1 to 20 mA. These systems perform image processing (e.g., zooming, multi-image viewing) and also save and retrieve images. Intraoral digital radiographic systems are used for imaging crowns and the upper third of the roots of the upper and lower teeth (bite-wing image), the full tooth structure (periapical image), or the masticating surface of premolars and molars (occlusal image).
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