A camera loaded and mounted on one end of a fixed table was used to photograph dental study casts on a platform at the other end of the same table. These pictures were traced and analyzed for changes in arch form and dimensions.
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References
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Huddart, A.G. : An Analysis of the Maxillary Changes Following Presurgical Dental Orthopedic Treatment in Unilateral Cleft Lip and Palate Cases, European Orthodont Soc43:299, 1967.
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Berkowitz, S. , and Pruzansky, S.: Steriophotogrammetry of Serial Casts of Cleft Palate, Angle Orthodont38:136, 1968.