A new method for assessing masticatory performance: a feasibility and reproducibility study.
A new method for assessing masticatory performance: a feasibility and reproducibility study.
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评估咀嚼性能的新方法：可行性和再现性研究。
DOI：
10.1111/j.1365-2842.1997.tb00363.x
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发表时间：
1997
影响因子：
2.9
通讯作者：
B. Skindhöj
中科院分区：
文献类型：
--
作者：
J. Huggare;B. Skindhöj
本研究的目的是开发一种评估咀嚼性能的方法，其基础是在测试材料中加入颜色粘结剂，并假定颜色的吸收与被咀嚼材料的总表面积成正比。这是用红素作为着色剂，Praestol 655BC作为着色剂加入到Satou的合成测试材料(等量的巴西棕榈蜡和硫酸钡)中进行体外测试。作者发现，红素标准溶液与同一溶液的上清液与人工粉碎的试料孵育半小时后的吸光度差值与颗粒表面几乎呈线性相关(r=0.997)。然后，这种测试材料被制成小片，四个成年人重复咀嚼5克这些片剂，以评估方法的选择性和重复性。在吸光度差异的总范围内(0.47~1.19)，个体间差异大于0.17的个体间差异在95%的重复实验水平上显着。即刻重复测量与间隔1周重复测量的个体内变异无差异，但当两个受试者使用他们的局部义齿时，重复性受到干扰。
The aim of this study was to develop a method for assessing masticatory performance based on incorporation of a colour binder in a test material with the presumption that the absorption of the colour is proportional to the total surface area of the masticated material. This was tested in vitro with erythrosin as the colour substance and Praestol 655BC as the colour binder incorporated into Satou's synthetic test material (equal amount of carnauba wax and bariumsulphate). The authors found that the difference in spectrophotometrical absorbance between a standard erythrosin solution and the supernatant of the same solution incubated half an hour with artificially pulverized test material was almost linearly correlated (r = 0.997) with the particle surface. This test material was then fabricated as small tablets and four adults chewed repeatedly five grams of these tablets to assess selectivity and reproducibility of the method. A good selectivity was found in that within the total range of the difference in absorbance (0.47-1.19) an inter-individual difference of more than 0.17 is significant on a 95% level with double experiments. There were no differences in the intra-individual variation for double determinations between immediate repeat and 1 week interval performances but the reproducibility was disturbed when two subjects used their partial dentures.