Page 28 - Directions for the manipulation of the Gysi adaptable articulator

24 It is necessary only to lay the 13egree Plate with its point at the angle of the prolonged line and the card, and its o margin with the margin of the card, to read the degree of inclination. I his may be done with both tracings. Ihey may be much alike or may vary greatly. If the records have been properly taken, the difference between the inclinations of the paths need cause no uneasiness. The black iron stand and the goose neck designed to support the Condyle Path Register are now put together, the Condyle Path Register is placed on the goose neck by means of the single hole i i the outer surface of the centre block, the upper and lower models are wet and placed in their respective trial plates and tied there by a string passed around all and the Horseshoe Plate, supporting both the trial plates and models is attached to the Condyle Path Register bv thrusting the two projecting rods of the plate into the two holes on the Inner side of the centre block of the Condyle Path Register. The supporting frame is moved about until the models are above the lower model bow, the Incisor Path Register is in the \ -^Ir- y V ZeMi^ <^d^. (Fkiiii The Dental Oisiuos.) 111. No. 25. Rig^ht and left condyle paths from one case and the lines parallel to the " working portions " of the paths. median line, and the ends of the pencils are at the heads of the condyles. The pencil holders may be moved In and out by means of the rack and pinion to bring them into this relation, but the pencil holders must not be turned. When this position is attained, the set screw on the goose neck should be tightened, and the whole appar- atus moved away from above the lower model bo\v. Plaster of paris may now be mixed and poured over the low^er bow and the Condyle Path Register with its attachments moved back to the position from which it has just been taken. Plaster may now be