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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: J Oral Maxillofac Surg. 2009 Oct;67(10):2093–2106. doi: 10.1016/j.joms.2009.04.057

Fig 3.

Fig 3

Orientation of the composite skull model to the NHP using the digital gyroscope method

a. A digital gyroscope is attached to the bite-jig and facebow.

b. The pitch, roll and yaw of the gyroscope are recorded.

c. In the computer, a digital replica (CAD model) of the gyroscope is registered to the composite skull model (via the fiducial markers) and the 2 objects are attached to each other.

d. The recorded pitch, roll and yaw are applied to the center of the gyroscope replica reorienting the composite skull model to the NHP

e. After the composite skull is orientated to the NHP, the gyroscope replica is marked hidden.