Trajectories of condylar points during working-side excursive movements of the mandible.
BACKGROUND
Trajectories of different condylar points provide different interpretations of condylar movement during open-close jaw movements. Movement of the working-side condyle is often assessed clinically by recording the trajectory of a single arbitrary condylar point.


OBJECTIVE
This study examined the effect of the differences in condylar point location on condylar point movement trajectories during a working-side movement.


METHODS
Different points exhibited different trajectories during a single working-side movement in each of 44 subjects.


RESULTS
Up to 40% of a point's displacement could be attributed simply to the location of the point.


CONCLUSIONS
Interpretation of condylar movement on the working side within a subject depends on the point chosen.
Peck
C C
CC
Faculty of Dentistry, University of Sydney, Westmead, Australia.
Murray
G M
GM
Johnson
C W
CW
Klineberg
I J
IJ
DeBoever
J A
JA
D000328:Adult; D002508:Cephalometry / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D008297:Male; D008335:Mandibular Condyle / Q000000981:diagnostic imaging / Q000502:physiology*; D009068:Movement; D015203:Reproducibility of Results; D014057:Tomography, X-Ray Computed