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Preventive effects of lasers on enamel caries have been documented in the past few decades. However, its specific mechanism remains uncertain.To evaluate the laser-induced change of enamel compositions, including carbonate and organic matters using Fourier-transform Raman spectroscopy (FT-Raman).Twelve windows (1mm×1mm), created on six defect-free primary incisors, were characterized by FT-Raman microscopy...
Objectives: The purpose of this study was to identify the optimal laser energy range of Er:YAG laser irradiation for laser-induced caries prevention (LICP).Methods: Twenty-one human non-carious molars were selected. The teeth were covered with nail varnish, except two 4mm×1mm windows on both the buccal and lingual surfaces. The windows were randomly assigned to groups A, B, C and D, receiving no irradiation,...
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