This study showed that the labio-palatal position of MICs and resorption of permanent incisors might be predicted using sector location on panoramic radiographs.

Objective: To determine the relationship between anterior occlusion and frontal sinus size. Methods: The patient database at the Eastman Institute for Oral Health, University of Rochester, was searched for male patients older than 15 years and females older than 13 years of age. After applying inclusion and exclusion criteria, participants' photos and lateral cephalometric and posteroanterior radiographs were examined then classified into a control class I group (n ¼ 20, 15.7 6 2.7 years) and eight malocclusion groups (n ¼ 136, 16