Properties of a color-changeable chewing gum used to evaluate masticatory performance

被引:89
作者
Hama, Yohei [1 ]
Kanazawa, Manabu [1 ]
Minakuchi, Shunsuke [1 ]
Uchida, Tatsuro [1 ]
Sasaki, Yoshiyuki [2 ]
机构
[1] Tokyo Med & Dent Univ, Grad Sch Med & Dent Sci, Dept Gerontol & Gerodontol, Tokyo 1138549, Japan
[2] Tokyo Med & Dent Univ, Grad Sch Med & Dent Sci, Dept Oral Hlth Sci, Tokyo 1138549, Japan
关键词
Mastication; Evaluation; Chewing gum; Color; Non-linear regression; MIXING ABILITY; COMPLETE DENTURE; ASSOCIATION; TESTS;
D O I
10.1016/j.jpor.2013.12.005
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Purpose: To clarify the basic properties of a color-changeable chewing gum to determine its applicability to evaluations of masticatory performance under different types of dental status. Methods: Ten participants with natural dentition aged 26-30 years chewed gum that changes color during several chewing strokes over five repetitions. Changes in color were assessed using a colorimeter, and then L*, a*, and b* values in the CIELAB color system were quantified. Relationships between chewing progression and color changes were assessed using regression analysis and the reliability of color changes was assessed using intraclass correlation coefficients. We then measured 42 dentate participants (age, 22-31 years) and 47 complete denture wearers (age, 44-90 years) to determine the detectability of masticatory performance under two types of dental status. Results: Regression between the number of chewing strokes and the difference between two colors was non-linear. The intraclass correlation coefficients were highest between 60 and 160 chewing strokes. Dentate and edentulous groups significantly differed (Wilcoxon rank sum test) and values were widely distributed within each group. Conclusions: The color of the chewing gum changed over a wide range, which was sufficient to evaluate the masticatory performance of individuals with natural dentition and those with complete dentures. Changes in the color values of the gum reliably reflected masticatory performance. These findings indicate that the color-changeable chewing gum will be useful for evaluating masticatory performance under any dental status. (C) 2014 Japan Prosthodontic Society. Published by Elsevier Ireland. All rights reserved.
引用
收藏
页码:102 / 106
页数:5
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