Krause Felix, Braun Andreas, Frentzen Matthias, Jepsen Søren
Department of Operative Dentistry and Periodontology, University of Bonn, Bonn 53111, Germany.
Lasers Med Sci. 2008 Apr;23(2):133-9. doi: 10.1007/s10103-007-0463-9. Epub 2007 May 23.
The influence of composite fissure sealants on caries detection with IR laser fluorescence measurements should be assessed. Thirty-five extracted human teeth with 105 initial carious lesions were included. Six groups containing 15 lesions each were sealed with either a clear or a white version of three sealants. Group 7 was sealed with an experimental nanofilled material. Occlusal surfaces were irradiated by a diode laser (<1 mW, 655 nm). Fluorescence was measured before and after acid etching, directly and 1 week after application of the sealants. Values significantly increased after etching (p < 0.05). Compared to initial measurements, values decreased after sealing with the white materials (p < 0.05). There was no difference between values before and after sealing with the clear and the experimental materials (p > 0.05). All values were reproducible. The study indicates that it might be possible to monitor caries activity under clear or nanofilled fissure sealants by means of laser fluorescence.
应评估复合窝沟封闭剂对红外激光荧光测量龋齿检测的影响。纳入了35颗有105处初始龋损的拔除人类牙齿。六组，每组15处龋损，分别用三种封闭剂的透明版或白色版进行封闭。第7组用一种实验性纳米填充材料进行封闭。用二极管激光（<1 mW，655 nm）照射咬合面。在酸蚀前、酸蚀后、直接应用封闭剂后以及应用封闭剂1周后测量荧光。酸蚀后数值显著增加（p < 0.05）。与初始测量值相比，用白色材料封闭后数值降低（p < 0.05）。用透明材料和实验材料封闭前后的数值无差异（p > 0.05）。所有数值均可重复。该研究表明，通过激光荧光有可能监测透明或纳米填充窝沟封闭剂下的龋齿活动情况。
