Page 32 - Directions for the manipulation of the Gysi adaptable articulator

28 Place ends ot hori/ontal pencils opposite marks on tace oxer J. heads of condyles. Tasten tight in these positions. 4. Mark on a xisiting card the forward condyle paths in lateral or opening nio\ements. 111. Xo. 13. ^. RenioN'e large register without disturbing pencils. 6. Fasten the Incisor Register to the upper trial plate. 111. Xo. 9. 7. Blacken and wax front of horseshoe pattern. 8. Put upper and lower trial plates into the mouth and record lateral mo\'ement of region of incisor. 111. Xo. 16. 9. Vi\ normal bite of lower mandible with pin of Incisor Reg- ister in pointed pattern, by means of incij::ons in the wax or by 4 pointed staples. 10. Dismiss patient after shade of teeth has been determined. III. Measuring Recorded Movements of the Mandible. 1. Measure records macie on the ground glass plates. Til. Xo. 21. 2. Adjust fossae to reproduce the lateral movements. 3. Measure the records on the cardboard. 111. Xo. 24. 4. Adjust glenoid fossae of articulator to reproduce forward and downward paths, of condyles. IV. Mounting Models on the Articulator. 1. Temporarily wax the plaster models to the trial plates, put a rubber band around all and with large register. 111. X'^o. 26, slide on articulator. 2. Trim plaster models vertically until 111. No. 26 is possible. 3. Tie plaster models, trial plates, and horseshoe pattern firmly together with a cord. 111. X'^o. 19. Soak models In water, attach to Condyle Path Register. 4. Stand Articulator w^Ith curved Incisor Guide Pin, which must not protrude above the top of the opening, holding It on a glass slab, pour plaster on lower bow, and then put base, register, and models together in their proper places, as In 111. No. 26, with the tips of horizontal pencils at the same level as the points of the condyle pins of the articulator.