To record the angulation of the maxilla, a plane should be formed with minimum:: (A) 2 posterior and 1 anterior reference points, (B) 3 posterior and 1 anterior reference points, (C) 1 posterior and 3 anterior reference points, (D) 1 posterior and 2 posterior reference points
Answer is A. To record the angulation of the maxilla, a plane should be formed with at least two posterior references and one anterior reference.