Intraoral Pressures in a Young Adult Group

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Abstract
Tongue and lip forces against the teeth during swallowing were evaluated in 9 young adult males. Strain gage pressure transducers were placed so as to allow simultaneous recording labial to the maxillary central incisors, lingual to the maxillary central incisors when the teeth were in occlusion and lingual to the maxillary first molar. Tongue pressure during swallowing which was invariably seen in incisor and molar regions tended to occur simultaneously in the 2 areas. For each individual, there was a relatively consistent pattern of pressure applications during swallowing. There were large differences between individuals, in pressure pattern and in maximum pressures exerted in each region. There is a wide range in maximum lip and tongue forces in subjects with similar denti- tions. Evaluation of abnormal muscle function with pressure transducers may present problems of interpretation.