Fig. 3From: Comparison of the effects on the pharyngeal airway space of maxillary protraction appliances according to the methods of anchorageCephalometric measurements used in this study. 1 SNA, 2 SNB, 3 N. Per. to A, 4 palatal P, 5 Co-A (dotted line, maxillary advancement measurement), 6 Mn. Length, 7 ANB, 8 U1 to SN, 9 FMA, 10 IMPABack to article page