Measuring masticatory performance using a new device and β-carotene in test gummy jelly
Measuring masticatory performance using a new device and β-carotene in test gummy jelly
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DOI：
10.1111/j.1365-2842.2010.02112.x
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发表时间：
2010-11-01
影响因子：
2.9
通讯作者：
Maeda, Y.
中科院分区：
文献类型：
--
作者：
Nokubi, T.;Nokubi, F.;Maeda, Y.
评估咀嚼性能的客观方法对于不同牙科治疗之间的定量比较以及对咀嚼功能障碍的诊断是非常有价值的。本研究的目的是开发一种精确的方法，利用由发光二极管和光电二极管组成的新型测量装置和测试胶冻来自动测量咀嚼性能。首先，研究了水溶液中六种已知的β-胡萝卜素浓度与光电二极管上显示的电压值之间的关系。红光入射到光电二极管上得到的平均电压与水溶液中的β-胡萝卜素浓度有显著的相关性(r=三次函数中的0中心点999，P<；0中心点01)。其次，为了建立评价咀嚼性能的最佳测量条件，研究了影响平均电压的因素，如水温、果胶的漂洗次数和果冻中的β-胡萝卜素的溶解。在漂洗水温35℃，漂洗时间30 S，水溶温度35℃，溶解时间10 S的条件下，得到了稳定的平均电压。最后，研究了分离胶冻的7个表面积值与分离凝胶中溶解的β-胡萝卜素浓度的关系。根据光电二极管上的平均电压，准确地计算出分割的测试胶冻颗粒的表面积增加(r=0中心点992，P<；0中心点001)，以改变从凝胶表面溶解的β-胡萝卜素浓度。这种使用测试胶冻和自动测量装置的新方法对于准确评估咀嚼性能是有用的。
P>Objective methods for evaluating masticatory performance are invaluable for quantitative comparisons between various dental treatments as well as diagnosing masticatory disorder. The purpose of this study was to develop an accurate method for automatically measuring masticatory performance using a new measuring device consisting of light-emitting diodes and a photodiode and test gummy jelly. First, the relationship between six known beta-carotene concentrations in aqueous solution and the voltage values exhibited on a photodiode was investigated. Mean voltage obtained by red light incident on the photodiode indicated a significantly high correlation (r = 0 center dot 999 in a cubic function, P < 0 center dot 01) with beta-carotene concentration in the aqueous solution. Second, to establish the optimal measuring conditions for evaluating masticatory performance, factors influencing mean voltage were investigated, such as water temperature and times for rinsing the gummy jelly and dissolving beta-carotene from the jelly. A stable mean voltage was obtained by measuring under the following conditions: rinsing water temperature, 35 degrees C; rinsing time, 30 s; water dissolving temperature, 35 degrees C; dissolving time, 10 s. Finally, the relationship between seven surface area values of divided gummy jelly and beta-carotene concentrations dissolved from the divided jellies was investigated. The increase in surface area of divided test gummy jelly particles was accurately calculated (r = 0 center dot 992, P < 0 center dot 001) from mean voltage on the photodiode to change with beta-carotene concentration dissolved from the jelly surface. This new method using test gummy jelly and an automatic measuring device appears useful for precisely evaluating masticatory performance.