Page 9 - Directions for the manipulation of the Gysi adaptable articulator

Before trying in the upper trial plate, a line is drawn on the side of the patient's face, from the lowest point of the external aud- itory meatus to the lowest point of the wing of the nose, as in illus- tration No. 2. anical Sido ..f Anai 111. No. 2. A line is drawn on the face from the lowest point of the external auditory meatus to the lowest point of the wing of the nose. This is generally accepted as parallel with the occlusal plane. The occlusal surfaces of the trial plates should be made parallel to it. This line is parallel w^ith the occlusal plane. It can usually be drawn with a soft lead pencil and a ruler and if proper explanation is made to the patient no objection is met. A silver table knife is within reach. The wax ridge on the right side of the upper trial plate is softened by heat and the plate placed in the mouth with the ridge soft. The blade of the table knife is laid along the softened