Abstract : To compare two new correction methods for SNA and SNB to a classical method, their impact on SNA and SNB measurements and their correlation to clinical examination, using lateral cephalograms taken in the natural head position guided by the K plane. The Orienter was used to orient the head in the natural head position during lateral cephalograms and clinical examination. Frankfurt Horizontal, SNA, SNB and the orientation angle were measured for 24 adults with age range of 18-24 years. According to the three methods investigated, compensations in SNA and SNB angles were made and the skeletal jaw relation was determined in each method. Comparisons between the methods were made and the correlation between the skeletal jaw relation and the clinical skeletal jaw relation was determined. For both SNA and SNB, there was a statistically significant difference between A1 and each of A2 and A3 (p=0.002), and A3 and each of A2 and A4; (p=0.015) and (p=0.001), respectively. The interclass correlation coefficient between A4 skeletal jaw relation and clinical jaw relation was 0.936. The correction of SN/FH, SNA and SNB angles using the orientation angle, provided a better and more realistic diagnosis that closely matched clinical reality.