Result: Palatal width of groups I, II, III were 33.60 ± 2.81 cm, 36.42 ±2.43 cm, 36.93 ± 6.39 cm, palatal length were 40.78 ± 4.68 cm, 43.72 ± 3.58 cm, 45.66 ± 4.71 cm, palatal depth were 14.73 ± 3.87 cm, 16.09 ± 3.30 cm, 15.15 ± 3.74 cm respectively.