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首页> 外文期刊>The Journal of Prosthetic Dentistry >Comparison of the shade matching ability of dental students using two light sources.
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Comparison of the shade matching ability of dental students using two light sources.

机译：比较使用两种光源的牙科学生的阴影匹配能力。

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STATEMENT OF PROBLEM: Shade selection is affected by a host of variables, including lighting. PURPOSE: The purpose of this study was to assess the ability of dental students to match shades under natural lighting and using a light-correcting device, specifically to determine whether there are differences based on: (1) year in school, (2) gender of student, and (3) light source. MATERIAL AND METHODS: A 14-item shade matching quiz (SMQ) and a questionnaire were field tested. No major modifications were made to SMQ or questionnaire. Demographic information included year in school, age, gender, previous experience, and Ishihara's Tests for Color-Blindness. The SMQ was administered on separate occasions during the spring and summer, under natural light (SMQ-NL) and using the light-correcting device (SMQ-CL). For each of the 14 items, students (n=216) were to select the matching shade tab from 5 preselected tabs. Statistical analyses included ANOVAs, paired t tests, and independent t tests (alpha=.05). RESULTS: A total of 165 male and 51 female students participated, with an average age of 26 years. SMQ scores of 10 color-deficient students were excluded. There were no significant differences in SMQ-NL and SMQ-CL among the first through fourth year students (ANOVA), nor between men and women (t tests). The SMQ scores were significantly higher with the light-correcting device than with natural light: 11.4 +/- 1.9 and 10.4 +/- 2.0, respectively (paired t test, P<.001). With and without the light-correcting device, the Vita C shades were less likely to be matched than the Vita A or B shades (paired t tests, P<.001). CONCLUSIONS: Dental students' shade matching abilities were better with a light-correcting source than under natural light. Gender and experience were not found to be factors in matching shades. The Vita C shades were least likely to be matched.
机译：问题陈述：阴影选择受许多变量（包括照明）的影响。目的：本研究的目的是评估牙科学生在自然光线下并使用光校正设备匹配阴影的能力，特别是根据以下因素确定是否存在差异：（1）在校年龄，（2）性别学生，以及（3）光源。材料与方法：对一项14项阴影匹配测验（SMQ）和一个问卷进行了现场测试。没有对SMQ或问卷进行重大修改。人口统计信息包括上学年份，年龄，性别，以前的经历以及石原的色盲测试。在春季和夏季，分别在自然光（SMQ-NL）和光校正装置（SMQ-CL）下分别对SMQ进行管理。对于14个项目中的每一个，学生（n = 216）将从5个预选标签中选择匹配的阴影标签。统计分析包括方差分析，配对t检验和独立t检验（alpha = .05）。结果：共有165名男学生和51名女学生参加，平均年龄26岁。排除了10名色差学生的SMQ得分。第一至第四年级学生（ANOVA）中的SMQ-NL和SMQ-CL没有显着差异，男女之间也没有显着差异（t检验）。使用光校正设备的SMQ得分显着高于自然光：分别为11.4 +/- 1.9和10.4 +/- 2.0（配对t检验，P <.001）。使用和不使用光校正装置，与Vita A或B阴影相比，Vita C阴影不太可能匹配（配对t检验，P <.001）。结论：与自然光相比，使用光校正光源的牙科学生的阴影匹配能力更好。性别和经验并不是影响阴影搭配的因素。 Vita C阴影最不可能匹配。

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