HUMAN-TEETH WITH AND WITHOUT CARIES STUDIED BY LASER SCATTERING, FLUORESCENCE, AND ABSORPTION-SPECTROSCOPY
HUMAN-TEETH WITH AND WITHOUT CARIES STUDIED BY LASER SCATTERING, FLUORESCENCE, AND ABSORPTION-SPECTROSCOPY
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DOI：
10.1109/jqe.1984.1072351
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发表时间：
1984-01-01
影响因子：
2.5
通讯作者：
SWENBERG, CE
中科院分区：
文献类型：
--
作者：
ALFANO, RR;LAM, W;SWENBERG, CE
测量并比较了牙齿龋损区和非龋损区的可见光弹性散射和荧光发射。对于480-600 nm的光谱区域，龋齿区域比非龋齿区域更不有效地散射光。由相干光源激发的荧光的光谱形状类似于由非相干（灯）激发产生的发射。对于这两种激发模式，发射峰在约550 nm处。发现在给定波长下来自龋齿和非龋齿区域的荧光和光散射光谱的差异在整个光谱中不是恒定的。激光诱导荧光光谱伽马辐照牙齿（总剂量为2000拉德）显示出与对照样品的差异，发射蓝移相对于未辐照的样品。此外，在可见光区测量了牙齿的相对可见光吸收光谱。
The visible elastic light scattering and fluorescence emission from carious and noncarious regions of teeth were measured and compared. Carious teeth regions scattered light less effectively than noncarious regions for the spectral region 480-600 nm. The spectral shape of the fluorescence excited by a coherent source was similar to emission produced by incoherent (lamp) excitation. For both modes of excitation the emission peaks at approximately 550 nm. Differences in the fluorescence and light scattering spectra from carious and noncarious regions at a given wavelength was found not to be constant across the spectrum. Laser-induced fluorescence spectra for gamma irradiated teeth (total dose of 2000 rad) showed differences from control samples; the emission was blue shifted relative to the unirradiated samples. In addition, the relative visible absorption spectra for a tooth was measured in the visible region.