The use of intraoral optical scanners to acquire tooth morphology, gingiva morphology, and occlusion in a digital format for the purpose of aiding in the diagnosis and treatment planning phase, fabricating a dental prosthesis, for orthodontic applications, or to fabricate surgical templates for dental implants or oral surgery procedures.

Currently, all of the various chairside intraoral digital scanning devices are based on optical principles such as blue light-emitting diodes, blue laser technology, multiple single images that are stitched together, and continuous acquisition (streaming) of optical images.

Optical scanners depend upon a reflective surface and may require a contrasting medium or powder to acquire the surface representation of the tooth morphology.

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