One of the major goals orthodontists try to achieve is to obtain ideal angulations and positions of all teeth at the end of treatment. Traditionally, 2-D panoramic radiographs have been used to visualize both the maxillary and mandibular arches as well as root angulations. However, the use of panoramic radiographs to check mesiodistal tooth angulation is fundamentally flawed primarily due to dimensional and angular distortions as a result of image layer (focal trough) discrepancy. To overcome these problems, panoramic-like images constructed from 3-D CBCT volumetric images have been recommended. Three-dimensional CBCT images have been shown to capture the target at a 1:1 ratio with very little dimensional and angular distortions and the trough used to generate the panoramic-like images can be customized to closely follow the dental arch size and shape.
Click here to read more about the most accurate method to find the appropriate mesiodistal angulations of the teeth.
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