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首页> 外文期刊>Studia Universitatis Babes-Bolyai. Series Physica >FT-MICRO RAMAN PROSPECTS ON FLUORIDE-TREATMENTINFLUENCE ON HUMAN TEETH
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FT-MICRO RAMAN PROSPECTS ON FLUORIDE-TREATMENTINFLUENCE ON HUMAN TEETH

机译：FT-拉曼光谱研究氟对人牙的影响

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摘要

The aim of the present work was to investigate how the native signal observed in the micro-Raman spectra of tooth enamel and dentin is associated with the conservation procedure after extraction as well as with the fluorinated treatment. This was achieved by analyzing the Raman and IR signal associated with organic components of tooth enamel and dentin, in natural and fluorinated specimens of human permanent molar or children specimen samples. The inorganic/organic content of the two tissues was monitored using the relative intensity ratio of the v(PO_4)~(3-), v(C-H) and v(CO_3)~(2-) modes from 958, 2938 and 1446 cm~(-1) respectively. Three different teeth specimens were analyzed after common extraction. The micro-Raman signal was unaffected by the alcohol or methylen blue preservation procedure. The expected vibrational mode of CaF_2 associated to the OH <-> F diffusive exchange was observed as a very weak band in the micro-Raman spectra of enamel after the fluorinated treatment. The fluorinated procedure certainly did not seem to be favored for an increase in the CaF_2 instead, an increase in the crystallinity degree has been concluded, based on the relative intensity ratio and spectral shape of the mineral modes.
机译：本工作的目的是研究在牙釉质和牙本质的微拉曼光谱中观察到的天然信号如何与提取后的保存程序以及氟化处理有关。这是通过在人类恒牙或儿童样本的天然和氟化样本中分析与牙釉质和牙本质有机成分相关的拉曼和红外信号来实现的。使用958、2938和1446 cm的v（PO_4）〜（3-），v（CH）和v（CO_3）〜（2-）模式的相对强度比来监测两个组织的无机/有机含量〜（-1）。共同提取后分析了三种不同的牙齿样本。微拉曼信号不受酒精或亚甲基蓝保存程序的影响。在氟化处理后的搪瓷的微拉曼光谱中，观察到与OH-F扩散交换相关的CaF_2的预期振动模式为非常弱的谱带。氟化工艺似乎显然不适合增加CaF_2，相反，根据相对强度比和矿物模态的光谱形状，可以得出结晶度的提高。

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