Morris A J
School of Dentistry, Birmingham, UK.
Community Dent Health. 1995 Sep;12(3):167-70.
The effect on epidemiological findings arising from changing from an Anglepoise desk lamp to a Daray Versatile Medical Light was studied using 155 school children aged between 11 and 14 years. The children were examined on separate days using the two types of illumination. Differences observed in DMFT, sealed teeth, gingival health, plaque and calculus were not significant. The mean DT (+/- SE) was 0.12 (+/- 0.03) for the Anglepoise desk lamp and 0.16 (+/- 0.04) for the Daray Versatile Medical Light, the difference between these values being significant (P < 0.05). The magnitude of the difference was small (0.04 DT, SE +/- 0.02) when compared with observed changes in the mean DT in 15-year-old children in the districts where the study took place between 1986 and 1990. The level of agreement ranged from very good (kappa = 0.81-1.00) for DMFT and components to fair for plaque (kappa = 0.32). It is concluded that there is no evidence from this study that changing the type of illumination from Anglepoise desk lamp to Daray Versatile Medical Light would affect markedly the results of dental prevalence surveys.
研究人员对155名年龄在11至14岁之间的学童进行了研究，以探讨从悬臂式台灯换成达雷多功能医用灯对流行病学调查结果的影响。分别在不同日期使用这两种照明方式对孩子们进行检查。观察到的恒牙龋失补牙数（DMFT）、已封闭牙齿、牙龈健康、牙菌斑和牙结石方面的差异并不显著。悬臂式台灯的平均龋均（DT，±标准误）为0.12（±0.03），达雷多功能医用灯的平均龋均为0.16（±0.04），这两个数值之间的差异具有统计学意义（P < 0.05）。与1986年至1990年开展该研究地区15岁儿童观察到的平均龋均变化相比，差异幅度较小（0.04 DT，标准误±0.02）。一致性水平从恒牙龋失补牙数及其组成部分的非常好（kappa = 0.81 - 1.00）到牙菌斑的一般（kappa = 0.32）不等。研究得出结论，本研究没有证据表明将照明类型从悬臂式台灯换成达雷多功能医用灯会显著影响牙科患病率调查的结果。
