抄録
In order to clarify the effect of the location of palatal bar of partial palatal plates on various articulation organs and their self-compensation, three types of experimental partial palatal plates with palatal bars at different locations were applied to subjects showing normal occlusion with natural dentition, and variations over time of the proportion of the duration of preceding consonant on the duration of speech sounds and the duration of pronunciation were evaluated. The above results suggest that the difference in location of palatal bars affects the duration of speech sounds and aspects of self-compensation, special care should be taken for the duration of speech sounds in routine clinical practice, and the mid-palatal bar is the most advantageous for connection of the partial plate denture to the upper mandibule. It is suggested that the rear palatal bar and front palatal bar are slightly inferior.
