Page 24 - Directions for the manipulation of the Gysi adaptable articulator

20 tnc iiioiith and make se\'cral marks across from one trial plate to the other. Make them as vertical as possible and as nearly at ri^ht angles with the surface of the wax. Sloping marks lead to trouble. 111. No. 19. Upper and lower trial plates positioned by Incisor Guide Pin in pattern on Horseshoe Plate and marks on buccal surfaces. Correct vertical marks and incorrect sloping marks shown. The use of four pointed staples to hold the trial plates together is excellent. The trial plates with the Horseshoe Plate and Incisor Path Register in place may now be taken from the mouth, fastened in proper relations, and laid aside until the articulator has been prepared for their reception. 111. No. 20. Upper and lower trial plates fastened together in proper relations. Models tied in position and soaked, ready for mounting- in the Articulator.