The are 84 meridian points located on the hard palate of the foof of the mouth. 32 pairs of points (64 points) are located on the hard palate surface directly behind and along the inside of the teeth, i.e. four points with each tooth. The other 20 points are located in a curve or "U" shape on the central part of the palate, with 10 pairs of points along each side. The location of the points are not exactly the same for each person, since palate shapes vary, but the general curved pattern is universal. The movement of each part of the tongue stimulates these meridian points".
The Aquarian Teacher: KRI International Teacher Training Level 1 by Yogi Bhajan, Ph.D.