The contrast of demineralization on tooth occlusal surfaces from 405 to 1950-nm with varying depth.
The contrast of demineralization on tooth occlusal surfaces from 405 to 1950-nm with varying depth.
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405 至 1950 nm 不同深度的牙齿咬合表面脱矿对比。
DOI：
10.1117/12.2512941
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Darling,CynthiaL
中科院分区：
文献类型：
--
作者：
Mohajerani,Niloufar;Chan,KennethH;Yang,VincentB;Fried,Daniel;Darling,CynthiaL
近红外反射（NIR）是一种新的成像技术，可以检测牙齿咬合面和牙齿间接触部位的龋齿（腐烂）。传统的技术，主要是牙科X射线，不提供高灵敏度和特异性在脆弱的窝沟和裂隙区域。牙齿表面脱矿的对比度随着严重程度的增加而变化，并且随深度变化的幅度取决于波长。本研究的目的是确定对比度如何随深度变化作为波长的函数。在暴露于pH 4.5的脱矿溶液1、2、3、4和5天后，在1.5 × 1.5 mm暴露窗口中产生不同深度的脱矿。使用多个成像系统在405、630、850、1300、1460、1535、1675和1950 nm处对病变进行成像。在1950 nm处测量最高病变对比度。
Near Infrared Reflectance (NIR) is a new imaging technology that detects dental caries (decay) on tooth occlusal surfaces and in the interproximal contact sites between teeth. Conventional techniques, mostly dental x-rays, do not provide the high sensitivity and specificity at the vulnerable pits and fissure regions. The contrast of demineralization on tooth surfaces changes with increasing severity and the magnitude of that change with depth depends on the wavelength. The purpose of this study is to determine how the contrast changes with depth as a function of wavelength. Demineralization of varying depth was produced in 1.5 × 1.5 mm exposed windows after 1, 2, 3, 4, and 5 days of exposure to a demineralizing solution at pH 4.5. Lesions were imaged at 405, 630, 850, 1300, 1460, 1535, 1675, and 1950-nm with multiple imaging systems. The highest lesion contrast was measured at 1950-nm.