Intraoral 3D camera is used for intra-oral noncontact three-dimensional imaging of tooth surface. Quick imaging reduces tension and hand tremor which results in a simplified procedure and more acute results. PC/laptop compatibility of the camera ensures maximum portability. Its design and light weight lead to easy-to-use format while working with the device.
The optical system of intraoral camera consists of four similar imaging channels to project parallel bands to a tooth, and one recording channel. All optical axes congregate in the best focus plane. Imaging channels are places symmetrically to the recording channel. To provide accent lighting inside the mouth when focusing and searching for optimized position of profilometer four optics-free extra diodes are used.
During imaging 3D camera records four wand-projected images of the tooth to further reconstruct the whole tooth surface 3D model. Intraoral 3D camera is based on the method of four-angle project of parallel bands in conic rays. It leads to simplification of the optical system and keep its portability while maintaining multiangle lighting function. The multiangle lighting and integrated proceeding of obtained images by highly specific Fourier analysis provide spatial high resolution of tooth surface measurement, and facilitate the automatic detection of shaded or low contrast band sites.
Adopted from http://tomoscan.ru