Department of Social Dentistry, São Paulo State University (Unesp), School of Dentistry, Araraquara, SP, Brazil.
PLoS One. 2021 Nov 8;16(11):e0259768. doi: 10.1371/journal.pone.0259768. eCollection 2021.
This study observed the effect of different magnification systems on dental students' real and perceived fine motor skills.
This was a laboratory-based experimental study. Students in the fifth year of an undergraduate dentistry program (N = 92) participated in this study. The dependent variables were real motor skills, perceived motor skills and time required to complete the fine motor skills test. The independent variable was the use of a magnification system under four conditions. For each condition, the Dental Manual Dexterity Assessment was performed, which consisted of inserting the #3195FF bur into targets positioned on a Styrofoam plate. The accuracy of each penetration of the targets was scored, using a point system with a maximum possible score of 246 points. Students' perceived fine motor skills were assessed using a visual analog scale (VAS) that ranged from zero for no skills to ten for maximum skills. A descriptive statistical analysis and the repeated measures ANOVA were performed (α = 0.05).
The Galilean and Keplerian loupes were found to positively affect students' real fine motor skills (p<0.01); however, perceived fine motor skills and time were significantly better (p<0.01) under the naked eye.
Dental students' real fine motor skills were better when Galilean and Keplerian loupes were used, but the perceived fine motor skills were not.
本研究观察了不同放大倍率系统对牙科学生真实和感知精细运动技能的影响。
这是一项基于实验室的实验研究。参与本研究的是本科牙科五年级的学生（N=92）。因变量为真实运动技能、感知运动技能和完成精细运动技能测试所需的时间。自变量为在四种条件下使用放大系统。对于每种情况，都进行了 Dental Manual Dexterity Assessment，包括将 #3195FF 钻头插入位于泡沫聚苯乙烯板上的目标。使用最高得分为 246 分的点数系统对每个目标的穿透准确性进行评分。学生的感知精细运动技能使用从零技能到十技能的视觉模拟量表（VAS）进行评估。进行了描述性统计分析和重复测量方差分析（α=0.05）。
发现伽利略和开普勒望远镜正对着学生的真实精细运动技能产生积极影响（p<0.01）；然而，在裸眼条件下，感知精细运动技能和时间明显更好（p<0.01）。
当使用伽利略和开普勒望远镜时，牙科学生的真实精细运动技能更好，但感知精细运动技能却没有。
