The Mandibular Position and the Articulation

Part II Influences by Bite Raising on the Palatograms

Abstract

We placed full arch bite plates in the mandible of four adult subjects who had no apparent problems with pronunciation or hearing, and raised the vertical dimension of occlusion 4 and 8 mm. We then investigated the effect on static palatograms. We found that as the vertical dimension was elevated, there was a tendency for the tongue to retrude for vowel and fricatives, and there was a tendency for the antero-posterior width of the tongue contact to narrow for plosives and affricate, which form a closure zone.