Incisal relationships during speech.
The dimensions of movement of the mandible during the reading of a standard passage of text have been measured and enable a speech envelope to be described. The relationship between closest speaking space and the vertical overlap of the incisor teeth shows that there is a trend in this direction, but it is not as definitive a correlation as has been previously assumed. The relationship between the anterior speaking space and the horizontal overlap of the incisor teeth shows a similar trend but with a much reduced correlation. There was often a small space of approximately 0.2 mm between the mandibular incisor teeth and the palatal aspects of the maxillary incisor teeth that, although a common finding in this study, was by no means a constant feature for all subjects.
Howell
P G
PG
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007180:Incisor / Q000033:anatomy & histology; D007568:Jaw / Q000033:anatomy & histology* / Q000502:physiology; D008297:Male; D008334:Mandible / Q000033:anatomy & histology / Q000502:physiology; D009055:Mouth / Q000033:anatomy & histology* / Q000502:physiology; D009068:Movement; D013060:Speech; D014716:Vertical Dimension