Cineradiographic studies of bolus position during chewing

Abstract

The masticatory performance in three patient series has been studied by following the position of two different bolus materials. The positions of the test bolus were recorded by a cineradiographic method. Continuous mastication was recorded in about twenty chewing cycles for each subject with two test foods. The pattern of mastication varied between the series. The subjects in the dentulous series did not use the anterior part of the mouth to the same extent as those in the complete denture, and complete upper and partial lower denture series. The chewing was unilateral in about 68 per cent of the subjects, with alternate use of the left and right sides. The duration of an average chewing cycle was also studied. There were no differences between the three patient series. On the other hand a difference in the duration of the chewing cycle between the two types of test bolus could be observed.