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

<table>Vertical distance from the cusp tip perpendicularly to the occlusal plane, traced from the first upper molar to the central upper incisor. In this example, 14.8 mm, corresponding to a longer treatment according to Stewart.</table>

BioMed Research International

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Figure 5

Figure 5: 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 5 | 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 