Studies on Three Dimensional Movement of Teeth

-Analysis of Tooth Movement used for Laser Holography-

Abstract

Recently, in the dental field, some studies on the measurement of displacement and deformation by means of laser holography have been reported. Most of them, however, have described only the observation of interference fringes formed on the objects, and very few have done the quantitative analysis.
In the present investigation, authors developed the method of quantitative analysis of three dimensional displacement used for laser holography, measured the three dimensional displacement of teeth by the occlusal force, and obtained some interesting results.