A Study to Expand the Linear Range of the Mandibular Kinesiograph

Kim,  In-Kwon

J Korean Dent Assoc > Volume 22(7); 1984 > Article

Journal of Korean Dental Association 1984;22(7):621-633.
Published online July 31, 1984.

Mandibular Kinesiograph에서의 선형범위 확장에 관한 연구

김인권

미쉬간대학교 치과대학 보존학 및 교합학교실

A Study to Expand the Linear Range of the Mandibular Kinesiograph

In-Kwon Kim

Department of Operative Dentistry and Occlusion, School of Dentistry, The University of Michigan, U.S.A.

Abstract

The possibility of expanding the linear range of the Kinesiograph was studied using a nonferromagnetic mechanical positioning device. The magnet was moved in linear steps of 5 mm through three planes parallel to the frame work carrying the sensors within working range of a 3 cm wide by 4 cm deep by 5 cm high three dimensional lattice and a matrix of 693 data points was achieved. For each data point, the three Kinesiograph outputs were associated with the values of actual position. Once three coordinates of observed values were known, actual values could be determined. A computer program was specially written in Fortran to deal with this work. Because each dat point was 5 mm apart from each other, there would be 480 cubes with 8 data points Further refinement of the system is possible using a smaller interval between each data point. In conclusion, a theoretical model was presented which, by means of computer support, would allow the absolute measurement of jaw position over the entire range of functional jaw movements.