@article{oai:shinshu.repo.nii.ac.jp:00001964,
 author = {KUROIWA, AKIHIRO and KOZAWA, TAKESHI and IGARASHI, YOSHIMASA and SUGITOU, SHOHEI and ARAKAWA, HITOSHI and INOUE, YOSHIHISA and YONEDA, TAKANORI},
 issue = {2},
 journal = {松本歯学},
 month = {Aug},
 note = {The purpose of this study was to quantitatively analyze the mandibular movement by the Jaw tracking system with six degree of freedom (MM-JI-E). Displacements of the condyles under maximum clenching with successive loss of mandibular supporting zones were measured. The patient, a 29-year-old man, had been treated at an orthodontic clinic between 1994 and 1997, and temporary full coverage crowns were fabricated on four molars of the lower jaw. He showed no signs of abnormality of stomatognathic function. We measured the jaw movements with MM-JI-E, removing the crowns from the distal end of molars to the mesial. The condylar displacement values were displayed and calculated by the measurement of mandibular movement. When the supporting zones were reduced successively, both condyles moved upwards and slightly forwards (87-117°). The maximal condylar displacement values was 700μm without any support in the molars. We compared the measurements of MM-JI-E with those obtained with another jaw movement tracking system (Bio Pack), with three degree of freedom. The maximum opening paths in sagittal border movement were compared for the two measurement systems. The Bio Pack showed the deflection of the path of anterior maximum opening due to electronic error., application/pdf},
 pages = {161--166},
 title = {Preliminary Report on the Jaw Tracking System with Six Degrees of Freedom (MM-JI-E, Jaw tracking system)},
 volume = {22},
 year = {1996}
}