Pröschel P, Hofmann M
Department of Prosthetic Dentistry, Friedrich Alexander Universität, Poliklinik für Zahnärztliche Prothetik, Erlangen, West Germany.
J Prosthet Dent. 1988 May;59(5):617-24. doi: 10.1016/0022-3913(88)90082-0.
This study has shown that mastication in normal dentate subjects is associated with a great variety of movement modes. The dependence of chewing patterns on the resistance of food proves that the chewing system is capable of marked variations. A complete assessment of chewing behavior therefore demands the use of both tough and soft foods. Physiologic chewing of tough food is dominated by angulated grinding-type movements, whereas soft consistencies are chewed with drop-shaped or lenticular patterns. In a random sample of patients with good chewing function, approximately 95% of Angle class I and II occlusions were found, which statistically differed neither in chewing pattern distribution nor in movement parameters. As shown in this study, certain occlusal or functional properties cannot be characterized by a single type of chewing pattern but instead by a specific distribution of patterns. As a basis for the evaluation of such investigations, a method for the classification and ordered documentation of observed movement modes is necessary. The scheme used here includes all types of chewing movements that have been presently observed. It permits the recognition of patterns and the quantitative description of their frequencies and variations.
本研究表明，正常牙列受试者的咀嚼与多种运动模式相关。咀嚼模式对食物阻力的依赖性证明咀嚼系统能够产生显著变化。因此，对咀嚼行为进行全面评估需要使用质地硬和软的食物。咀嚼硬质食物的生理咀嚼主要由成角的磨碎型运动主导，而质地软的食物则以水滴形或透镜形模式咀嚼。在具有良好咀嚼功能的患者随机样本中，发现约95%为安氏I类和II类咬合，在咀嚼模式分布或运动参数方面在统计学上均无差异。如本研究所示，某些咬合或功能特性不能通过单一类型的咀嚼模式来表征，而是通过特定的模式分布来表征。作为评估此类研究的基础，需要一种对观察到的运动模式进行分类和有序记录的方法。这里使用的方案包括目前观察到的所有类型的咀嚼运动。它允许识别模式并对其频率和变化进行定量描述。
