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Reliability of a facebow transfer procedure.

Authors
  • Bowley, J F1
  • Michaels, G C
  • Lai, T W
  • Lin, P P
  • 1 Ohio State University, College of Dentistry, Columbus.
Type
Published Article
Journal
Journal of Prosthetic Dentistry
Publisher
Elsevier - Mosby
Publication Date
Apr 01, 1992
Volume
67
Issue
4
Pages
491–498
Identifiers
PMID: 1507132
Source
Medline
License
Unknown

Abstract

The three-dimensional orientation of a maxillary cast mounting from a simulated-kinematic facebow transfer was evaluated in multiple trials among three operators on a single subject. The anterior and posterior anatomic facial reference points were marked on the subject. Each operator performed a separate series of trials to reset the anterior facebow component, the two posterior facebow components, and a control series with no resetting of any facebow components relative to the subject. The x, y, and z coordinates of three reference points on the maxillary cast were determined with a machinist microscope relative to a fixed reference after each facebow transfer. A range of differences between mountings of the maxillary cast were found between trials with all three methods used. These mounting errors were due to setting of the instrument and would be expected in routine clinical use of this instrument.

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