Research Article

KPG Index versus OPG Measurements: A Comparison between 3D and 2D Methods in Predicting Treatment Duration and Difficulty Level for Patients with Impacted Maxillary Canines

Figure 4

Occlusal reference arch ( ); axial view. In this example and , therefore the KPG index value is 11—moderate difficulty ( ), in this study considered as shorter and easier.
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