Relationship between changes in the mandibular position and occlusal force during swallowing

概要

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Since the mandibular position during the first phase of swallowing in edentulous patients with complete dentures essentially corresponds to the intercuspal position, the swallowing method has been used clinically for determining intercuspal position. However, occlusal force varies depending on the shape of the intermaxillary wax occlusal rims used during the measurements, causing changes in the jaw position. We measured the contact pressure between the maxillary and mandibular occlusal rims in the appropriate intercuspal position during swallowing to obtain an objective evaluation index for determining occlusal vertical dimension. We also evaluated the occlusal force during swallowing in normal dentulous subjects by changing the vertical dimension of occlusion. We found that the mean occlusal force during swallowing in intercuspal position for the subjects we studied was 96.8±40.0 N, and that changes in the vertical dimension significantly affected the occlusal force during swallowing. (J Osaka Dent Univ 2003; 37: 135-139.)
大阪歯科学会の論文