Journal of Dental Research, Vol 58, 1754-1764, Copyright © 1979 by International & American Associations for Dental Research Online Journals
The effect of time and force magnitude on orthodontic tooth movement
R. J. Pryputniewicz and C. J. Burstone
The holographic technique, recently developed for precise and accurate
measurement of tooth displacements, was used to study the three-dimensional
motion of human teeth. Maxillary central incisors were loaded with forces
of 300 grams and 500 grams. Translations and rotations in three-dimensions
were measured over 45 seconds. The experimental results, presented as a
function of time, indicate that the instantaneous centers of rotation can
be represented by space centrodes that are characteristic for each patient
and the applied force system.
