Department of Endodontics, Baylor College of Dentistry, Texas A&M University System Health Science Center, Dallas, Texas, USA.
J Endod. 2010 Jul;36(7):1135-8. doi: 10.1016/j.joen.2010.03.003. Epub 2010 Apr 18.
The purpose of this study was to quantitatively investigate the effect of magnification on fine motor skills used in endodontics.
This study used a novel manual dexterity test that was performed with and without magnification. An 8x operating microscope and 2.5x dental loupes were used for the magnification tests. Forty subjects, 20 with microscope experience and 20 without, participated in the study. Performance on the test was evaluated by using an accuracy scoring system, and the time needed to complete the test was recorded for each subject.
A significant increase in accuracy score with each level of magnification was demonstrated (P <or= .05). In addition, the use of operating microscope significantly increased the time needed to complete the test among subjects with less than 3 years of microscope experience.
The use of magnification to enhance fine motor skills was supported in all age groups and experience levels.
本研究旨在定量研究在牙髓学中使用放大倍数对精细运动技能的影响。
本研究使用了一种新颖的手动灵巧性测试，该测试在有和没有放大的情况下进行。使用 8 倍手术显微镜和 2.5 倍牙科放大镜进行放大测试。40 名受试者参加了这项研究，其中 20 名有显微镜经验，20 名没有。每个受试者的测试表现都通过准确性评分系统进行评估，并记录完成测试所需的时间。
随着放大倍数的增加，准确性得分显著提高（P≤0.05）。此外，在显微镜经验少于 3 年的受试者中，使用手术显微镜显著增加了完成测试所需的时间。
在所有年龄组和经验水平中，使用放大倍数来增强精细运动技能都得到了支持。
