MASTICATORY PERFORMANCE AND EFFICIENCY
MASTICATORY PERFORMANCE AND EFFICIENCY
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DOI：
10.1177/00220345500290040701
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发表时间：
1950-01-01
影响因子：
7.6
通讯作者：
BRALEY, LC
中科院分区：
文献类型：
--
作者：
MANLY, RS;BRALEY, LC
已经设计了一种测量咀嚼性能和效率的方法。咀嚼性能基于咀嚼花生的百分比，这些花生将通过20个咀嚼性中的10英寸筛选。根据达到所需程度的食物粉碎所需的咀嚼数量来计算效率。只要咀嚼数量保持恒定，并且在咀嚼限制在最佳的半牙列上时，就发现了表演独立于口口相关的大小，而无实现的受试者的咀嚼表现接近。确定从5至160笔浸润的花生的粒度分布。当将数据绘制在对数概率论文上时，分布是线性的。随着咀嚼的进行，该过程逐渐变得有选择性，因为较大的颗粒消失了比根据随机磨削所预期的要快的速度。 AVG。二十五个具有完整牙列的病例的性能为88％。缺乏3D磨牙的五十半牙列平均为78％。 25个具有2个前磨牙和1个摩尔的半牙齿的平均性能为55％，30例义齿病例平均为35％。
A method has been devised for measuring masticatory performance and efficiency. The masticatory performance was based on the percentage of masticated peanuts which would pass through a 10-mesh screen after being subjected to 20 masticatory strokes. Efficiency was calculated from the number of chews required to reach a desired degree of food pulverization. The performance was found to be independent of the size of mouthful as long as the number of chews was kept constant, and the chewing performance of uninstructed subjects approached that obtained when mastication was confined to their best half dentition. The particle size distribution was determined for peanuts masticated from 5 to 160 strokes. The distribution was linear when the data were plotted on logarithmic probability paper. As mastication proceeded the process gradually became selective in that larger particles disappeared more rapidly than would be expected on the basis of random grinding. The avg. performance of twenty-five cases with complete dentitions was 88%. Fifty half dentitions lacking the 3d molar averaged 78%. 25 half dentitions which possess 2 premolars and 1 molar in occlusion had a mean performance of 55%, and 30 denture cases averaged 35%.