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Scanning systems designed to capture three dimensional (3D) in-vivo images of the topographical features of teeth using a combination of blue light emitting diodes (LEDs) and multiple lens optical systems. These systems typically consist of a wand including an intraoral video camera that is displaced along the dental arches, delivering light and capturing images from the teeth, a central unit that process the data and 3D images, and a monitor that displays the video images in real time. The systems simultaneously record the digital data corresponding to the images as a digital dental impression using dedicated software. Once the digital impression is assessed it is sent to a dental laboratory for conventional prosthesis manufacturing or to a computer-aided manufacturing milling machine, either locally at the dentist\'s office or in a dental laboratory, for automated manufacturing of the appropriate prosthesis.
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