The four-degree polynomials describing palatal curves in sagittal plane of torus palatinus group were reported: z = 0.0002125 y - 0.015148 y2 - 0.37506 y3 - 3.7872y4 + 1.6309 (r =0.98161), in the frontal: z = - 0.073385 x - 0.036334 x2 +0.0022577 x3 - 0.00304 x4 + 4.5562 (r =0.99938). Conclusion: Data collected about palatal dimension and shape in the present investigation could provide more appropriate data concerning morphological characteristics of the palate in a Vietnamese population.