单个大中央切口的轻度差异的可感知性和可接受性
Panagiotis Ntovas1, Sofia Diamantopoulou1, William Michael Johnston2
1Department of Operative Dentistry, National and Kapodistrian University of Athens, Athens, Greece.
概括
即使在上中央切口的轻度变化很小,也可以注意到. 感知和接受值取决于大小,方向和观察者特征,如性别,年龄和职业.
科学领域:
- 牙科的美学 牙科的美学
- 视觉感知 视觉感知 视觉感知
- 颜色科学 颜色科学
背景情况:
- 评估牙美学的视觉感知对于修复性牙科至关重要.
- 确定前牙的轻度差异的门值为临床实践提供了信息.
研究的目的:
- 为了确定部中央切口的轻度差异的感知度和可接受度值.
- 调查光度如何改变方向 (+ΔL*与-ΔL*),观察小组 (牙医与非专业人士),性别和年龄如何影响这些值.
主要方法:
- 产生了15张大中央切口器的数字图像,亮度不同 (ΔL*).
- 158名观察员 (79名牙医,79名非专业人士) 评估图像对轻度差异的感知和接受.
- 协差的多因素分析用于分析值和影响因素.
主要成果:
- 轻度差异的感知和接受受到大小,方向,观察者群体,年龄和性别的显著影响.
- 感知度值在0.1~2.7 ΔL*之间,可接受度值在2.3~4.5 ΔL*之间.
- 牙医,女性和年轻人感知并接受了较低幅度的轻度差异,较轻的牙 (+ΔL*) 比较深的牙 (-ΔL*) 更容易被感知和接受.
结论:
- 大中央切口的轻度感知和可接受度值受到多种因素的影响.
- 即使是微妙的轻度变化也能被感知,但根据观察者特征和变化的方向,接受度会有很大差异.
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