Systems and methods for recording mandibular movement

A clutch apparatus comprising:

• a mandibular clutch device comprising:
• a mandibular clutch configured to be affixed to mandibular teeth;
• a mandibular face bow connected to the mandibular clutch;
• and
• a first set of first and second collimated light sources configured to be connected to the mandibular face bow;
• and
• a second set of first and second collimated light sources configured to be connected to the mandibular face bow;
• a maxillary clutch device comprising:
• a maxillary clutch configured to be affixed to maxilla teeth;
• a maxillary face bow connected to the maxillary clutch;
• a first set of first and second position-sensitive diodes (PSDs) configured to be connected to the maxillary face bow;
• and
• a second set of first and second PSDs configured to be connected to the maxillary face bow,
• wherein:
• the first set of first and second collimated light sources are configured to be connected to the mandibular face bow and the first set of first and second PSDs are configured to be connected to the maxillary face bow to position the first set of first and second collimated light sources and the first set of first and second PSDs proximate right and left bicuspid regions;
• and
• replacing the first set of first and second collimated light sources with the second set of first and second collimated light sources and replacing the first set of first and second PSDs with the second set of first and second PSDs positions the second set of first and second collimated light sources and the second set of first and second PSDs proximate the actual physiologic axis of rotation of the mandible.