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optical coherence tomography		An imaging method using lasers that is used for mapping subsurface structure. When a reflective site in the sample is at the same optical path length (coherence) as the reference mirror, the detector observes interference fringes. [ Articles | Books | Images | Discussion groups ]
Additional comments : Optical coherence tomography, or OCT, is a new diagnostic imaging technique that has many potential dental applications. This system creates cross-sectional images by quantifying the reflections of infrared light from dental structures interferometrically. OCT images exhibit microstructural detail that cannot be obtained with current imaging modalities. Using this new technology, visual recordings of periodontal tissue contour, secular depth and connective tissue attachment now are possible. The internal aspects and marginal adaptation of porcelain and composite restorations can be visualized.

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