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Laser Doppler flowmetry evaluation of gingival recovery response after laser treatment

机译：激光治疗后牙龈回收响应的激光多普勒流动性评价

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This study was performed in order to evaluate in vivo the applicability of Laser Doppler Flowmetry (LDF) in recording the gingival blood flow and to assess the changes of gingival blood flow following gingival reshaping performed with EnYAG and 980 nm diode lasers. The LDF evaluation was performed on 20 anterior teeth, which underwent reshaping of gingiva, corresponding to 5 female patients (4 anterior teeth/patient), aged between 20 and 35. One part of the mouth was treated with EnYAG laser (LP, VLP modes, 140 - 250 mJ, 10-20 Hz, using cylindrical sapphire tips) and other part with 980 nm diode laser (CW, 4 W, contact mode and saline solution cooling). The gingival blood flow was monitored using a MoorLab laser Doppler equipment (Moor Instruments Ltd., Axminster, UK) with a straight optical probe, MP3b, 10 mm. The data were processed using statistical analysis software SPSS vl6.0.1. The investigation showed an evident decrease in perfusion for both areas in comparison with the baseline values 24 hours after treatment. The microvascular blood flow increased significantly after 7 days in both areas but mostly in diode area (p＜0.001). After 14 days for the EnYAG area the blood perfusion returned to the initial value. The results in diode area remained at a high level after 14 days. Both lasers proved efficiency in the surgical treatment of gingival tissue. Moreover, Laser Doppler Flowmetry is adequate for recording changes in gingival blood flow following periodontal surgery.
机译：本研究是为了在体内评估激光多普勒血流仪（LDF）的适用性在记录牙龈血流，并评估牙龈血流以下与EnYAG和980nm的二极管激光器进行牙龈整形的变化进行的。已于20个前牙，其后行重塑齿龈进行LDF评价中，对应于5名女性患者（4前牙/患者），年龄20和35的一个嘴的一部分之间，用激光EnYAG（LP，VLP模式处理，140 - 250毫焦，10-20赫兹，使用圆筒状的蓝宝石提示）和其他部分与980nm的二极管激光器（CW，4 W，接触模式和盐溶液冷却）。牙龈血流量用MoorLab激光多普勒设备（穆尔仪器有限公司，阿克明斯特，UK）具有直的光学探头，MP3B为10mm监测。该数据用统计分析软件SPSS vl6.0.1处理。调查显示，治疗后24小时与基线值比较中灌注了这两个领域的明显下降。微血管血流后7天在这两个领域但主要是在二极管区（P <0.001）显著增加。后在EnYAG区14天血液灌流恢复到初始值。在二极管面积的结果保持在14天后高的水平。两个激光器的外科治疗牙龈组织被证明效率。此外，激光多普勒血流足以记录下牙周手术牙龈血流变化。

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