Figure 1From: Lip closing force of Class III patients with mandibular prognathism: a case control study Measurements used in this study. 1, SNA (Sella–Nasion-A Angle); 2, SNB (Sella-Nasion-B Angle); 3, ANB (A-Nasion-B Angle); 4, PP-FH (Palatal Plane - Frankfort Plane Angle); 5, OP-FH (Occlusal Plane - Frankfort Plane Angle); 6, overbite; 7, overjet.Back to article page