Neumann C P, Rusu V, Tatarciuc M S
Facultatea de Medicină Stomatologică, Universitatea de Medicină şi Farmacie Gr. T. Popa Iaşi.
Rev Med Chir Soc Med Nat Iasi. 2001 Jul-Sep;105(3):583-4.
Moiré effect is an optical phenomenon that occurs when two similar arrays of alternately opaque and transparent lines or dots are superimposed upon each other. Superimposition of two such similar, but slightly different, line arrays causes interference between the arrays; the interference results in the formation of moiré fringes. There is a definite relationship between the pitches of the two arrays and the spacing of the fringes. Therefore, given the pitch of one of the arrays and the distance between the moiré fringes, the pitch of the other array can be calculated. The moiré effect can be used to determine the development of cutaneous tumors in a very short time-frame and to assess the measurement of dental eruption within 20 minutes. The 3-D facial, palatal and dental morphology can thus be evaluated very accurately. The CAD/CAM dental technology is actually possible due to the moiré effect.
莫尔条纹效应是一种光学现象，当两个由交替的不透明和透明线条或点组成的相似阵列相互叠加时就会出现。两个这样相似但略有不同的线条阵列叠加会导致阵列之间产生干涉；这种干涉会导致莫尔条纹的形成。两个阵列的间距与条纹的间距之间存在确定的关系。因此，已知其中一个阵列的间距和莫尔条纹之间的距离，就可以计算出另一个阵列的间距。莫尔条纹效应可用于在非常短的时间内确定皮肤肿瘤的发展情况，并在20分钟内评估牙齿萌出的测量情况。由此可以非常准确地评估三维面部、腭部和牙齿形态。由于莫尔条纹效应，计算机辅助设计/计算机辅助制造（CAD/CAM）牙科技术实际上成为可能。
