Abstract
Amounts of disocclusion during protrusive movement were measured using leaf gauge, on study models of 25 male subjects with normal dentition and free of TMD, mounted on a semi-adjustable articulator, after removing anterior teeth from the study models. The results showed that the average amount of disocclusion for molars is 0.43±0.43 mm under the condition without anterior teeth, during protrusive movement. That is, the amount of disoclusion without anterior teeth becomes 40% of that with anterior teeth. The difference between the two is up to hinge rotation of the mandible during protrusive movement.
