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  • Title: Characteristics of masticatory movement in relation to inclination of occlusal plane.
    Author: Ogawa T, Koyano K, Suetsugu T.
    Journal: J Oral Rehabil; 1997 Sep; 24(9):652-7. PubMed ID: 9357745.
    Abstract:
    The relationship between masticatory movement and the inclination of the occlusal plane in sagittal plane was analysed in 41 young adults. It was found that the occlusal plane and the masticatory closing path were consistent in maintaining an almost perpendicular relationship with each other, regardless of the variation in inclination of the occlusal plane. This finding can be explained by the observation that the timing of the balancing-side condylar translation during closure correlated with the inclination of the occlusal plane. The inclination of the occlusal plane also influenced the masticatory closing pattern in the sagittal plane. Anterior convex closure patterns dominated when the occlusal plane inclined in the anterior direction. In contrast, the majority of posterior convex closure patterns were induced by the posteriorly inclined occlusal plane. The appearance of these types seems to reflect a harmonious relationship between the inclination of the occlusal plane, tooth guidance, and other central and peripheral control. The correlation between the inclination of the occlusal plane and masticatory closing movement could serve as the functional background for the significance of the occlusal plane.
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