11. max mand rel facebow

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11. max mand rel facebow

  1. 1. Hinge Axis Location• Face-bow or ear-bow used• Record relationship of maxilla to transverse horizontal hinge axis of mandible
  2. 2. Hinge Axis• Transferred to the articulator• Important to prevent occlusal errors, particularly when cusped teeth are used in dentures.
  3. 3. Edentulous Bite Fork:Allows patient to closeagainst the opposingrim to stabilize therecord bases
  4. 4. Heat bite fork and imbed it centered and parallel the occlusal plane
  5. 5. Finger cots can be used over ear pieces for infection controlPatient can assistwith placement andorientation inexternal auditorymeatus
  6. 6. Orient in externalauditory meatus
  7. 7. Slide facebow onto bitefork Extend nasionsupport& tighten
  8. 8. Tighten all facebowwrenches
  9. 9. Loosen these tighteners.Release the recordbaseby breaking the seal,and removing thefacebow.
  10. 10. Loosen and remove thetransfer jig from theearbow
  11. 11. Place facebow supporton transfer jig and attachto indirect mount.Don’t use direct methodwith indirect mount.
  12. 12. Remove incisal pin and setthe centric latch
  13. 13. Indirect jig with record base on articulator
  14. 14. Place cast support andmaxillary mountingplate
  15. 15. Attach cast withmounting plaster in two steps

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