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首页> 外文会议>Conference on Lasers in Dentistry Ⅷ, Jan 20-21, 2002, San Jose, USA >Effect of a new carbon dioxide laser and fluoride on occlusal caries progression in dental enamel
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Effect of a new carbon dioxide laser and fluoride on occlusal caries progression in dental enamel

机译：新型二氧化碳激光和氟化物对牙釉质咬合龋进展的影响

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The purpose of this study was to investigate the effect of a new TEA carbon dioxide (CO_2) laser (9.6 μm, 5-8 μs pulse duration) combined with fluoride (F), on the inhibition of caries-like progression in occlusal surfaces in sound and demineralized enamel. Of 120 occlusal tooth surfaces (10 per group), 90 were partially demineralized in a 50% HAP/0.1 M lactic acid/carbopol solution (pH 5.0). Samples were treated with/without the laser (2.0 J/cm~2 or 3.0 J/cm~2) and/or F (as APF). Caries-like progression was tested by 5 days of pH cycling. Results were assessed by cross-sectional quantitative microradiography. The percent inhibition of caries progression with laser and/or F ranged from 87-170%. This new TEA CO_2 laser produced a significant protective effect against lesion progression, and in combination with fluoride treatment lesion reversal occurred.
机译：这项研究的目的是研究结合氟化物（F）的新型TEA二氧化碳（CO_2）激光（9.6μm，脉冲持续时间5-8μs脉冲）对抑制大鼠咬合面龋齿状进展的影响。健全的脱矿质搪瓷。在120个咬合的牙齿表面（每组10个）中，有90个在50％HAP / 0.1 M乳酸/卡波姆溶液（pH 5.0）中被部分去除了矿物质。用/不使用激光（2.0 J / cm〜2或3.0 J / cm〜2）和/或F（作为APF）处理样品。通过5天的pH循环测试龋齿状进展。通过横截面定量显微照相术评估结果。激光和/或F对龋齿进展的抑制百分比范围为87-170％。这种新的TEA CO_2激光对病变的进展产生了显着的保护作用，并与氟化物治疗相结合发生了病变逆转。

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