搜索结果: 1-15 共查到“医学 Nd:YAG”相关记录18条 . 查询时间(0.055 秒)
评价高、中、低能量Nd:YAG激光虹膜周边切开术(LPI)治疗老年闭角型青光眼(ACG)的临床效果,并观察其对患者角膜内皮细胞的不同影响。方法:筛选2016年1月至2019年1月期间在我院接受LPI治疗的老年ACG患者122例纳入本实验,根据术中激光能量的高低将所有患者分为三组,A组(n=41)给予低能量(0~20mJ)Nd:YAG激光治疗,B组(n=42)给予中能量(21~45mJ)Nd:YAG...
近年来,计算机辅助设计和计算机辅助制造（CAD/CAM）系统被引入口腔领域,这使得全瓷修复体的制作效率大大提高,应用也愈加广泛。全瓷修复体的远期使用效果与其在牙齿表面的粘接性能有着密切的关联,但目前对于全瓷修复体粘接面和牙本质表面粘接强度方面的研究还有待深入。现今,Er:YAG和Nd:YAG激光在口腔领域各方面发展迅速,在牙体硬组织和陶瓷表面处理方面的研究和应用也随之增多,但其对粘接强度影响方面的...
Nd:YAG根管荡洗技术对纤维桩粘接效果的影响
Nd:YAG 激光辅助荡洗 纤维桩 粘接强度
2018/5/24
研究Nd:YAG根管荡洗技术对纤维桩粘接性能的影响。方法: 20颗单根离体牙样本根管机械预备后按照终末荡洗技术分为两组:2.5%次氯酸钠针头冲洗组,2.5%次氯酸钠Nd:YAG根管荡洗组。常规根充以及纤维桩粘接后,对样本纤维桩部分片切并进行推出实验,同时观察和分析其断裂模式。结果: Nd:YAG结合次氯酸钠荡洗组纤维桩粘接强度明显高于次氯酸钠针头冲洗对照组;主要的断裂模式为混合断裂模式。结论: N...
目的 探索脉冲Nd :YAG激光结合氟化钠使用的防龋机制。方法 选择24 颗健康离体人恒前磨牙制成牙釉质标本。扫描电镜(SEM) 、电子探针分别观察和分析激光加氟化钠组、激光组、氟化钠组、空白组(不处理) 牙釉质表面超微结构及牙釉质内部氟离子分布水平。结果 ①SEM观察:激光加氟化钠组牙釉质表面玷污物全部去除,并呈部分熔融状和空泡状改变;牙釉质表面散在分布着细小的白色颗粒;熔融灶、裂纹、微孔呈白色...
Surface damages of zirconia by Nd:YAG dental laser irradiation
Zirconia Damage Nd:YAG Laser Welding
2010/5/31
The purpose of this study was to characterize the surface damages of zirconia by Nd:YAG dental laser irradiation through a systematic evaluation of the associated microstructural changes. Disk specime...
脉冲Nd：YAG 激光用于磨损牙复合树脂粘接修复的临床观察
脉冲Nd YAG 激光 磨损 复合树脂
2010/3/20
评价脉冲Nd：YAG 激光联合自酸蚀粘接系统修复后牙面磨损的临床疗效。方法对15 例患者的38 颗后牙面磨损进行修复，要求每例患者至少有2 颗磨牙或前磨牙有相似病损，试验组使用脉冲Nd： YAG 激光联合Adper Prompt L-Pop 自酸蚀粘接剂，对照组直接使用Adper Prompt L-Pop 自酸蚀粘接剂，修复树脂为Z350 光固化复合树脂，以改良美国公共卫生署标准评价修复后1、...
Effects of Welding Pulse Energy and Fluoride Ion on the Cracking Susceptibility and Fatigue Behavior of Nd:YAG Laser-welded Cast Titanium Joints
Welding pulse energy Fluoride Mechanical property
2009/9/15
In this study, the cracking susceptibility and fatigue behavior of Nd:YAG laser-welded cast Ti joints (welding pulse energy: 11, 15, and 18 J) in fluoride-containing (0 and 0.5% NaF) artificial saliva...
Accuracy of Temporary Laser Welding of FPDs by Nd:YAG Laser in the Oral Cavity
Nd:YAG laser Temporary laser welding Deformation
2009/9/15
The purpose of this study was to investigate the accuracy of temporary fixation with laser welding for fixed partial dentures (FPDs). Five kinds of experimental FPD with different welding/soldering ga...
Fracture Resistance of Nd:YAG Laser-welded Cast Titanium Joints with Various Clinical Thicknesses and Welding Pulse Energies
Fracture resistance Thickness Welding pulse energy
2009/9/14
The purpose of this study was to evaluate the fracture resistance of Nd:YAG laser-welded cast titanium (Ti) joints with various clinical thicknesses and welding pulse energies. A four-point bending te...
Clinical observation of periodontal tissues after periodontal flap surgery Cmbined with Nd:YAG laser irradiation
flap operation Nd:YAG laser clinical parameter
2009/5/20
We observed the clinical status of periodontal tissues after periodontal flap surgery combined with Nd:YAG laser irradiation based on clinical parameters.
Materials were 52 teeth in 10 patients, Surg...
Pain relief effects by Nd: YAG laser irradiation following flap surgery
Nd: YAG Laser Visual Analogue Scale (VAS) Pain Relief Flap Operation
2009/5/20
The aim of this study was to compare pain relief effects after periodontal flap operation between Nd: YAG laser irradiation and the administration of anti-inflammatory drugs in the same patients using...
Comparison of pain relief effects among Nd : YAG laser irradiation,Er : YAG laser irradiation and administration of anti-inflammatory drugs following flap surgery
Nd : YAG laser Er : YAG laser Pain relief Visual Analogue Scale(VAS) Flap Operation
2009/5/15
The aim of this study was to compare pain relief effects after periodontal flap surgery among Nd : YAG laser irradiation, Er : YAG laser irradiation and the administration of anti-inflammatory drugs i...
Comparative Evaluation of Dentine Surface Changes Following Nd：YAG Laser Irradiation by SEM
Comparative Evaluation Dentine Surface Changes YAG Laser Irradiation
2009/4/2
Comparative Evaluation of Dentine Surface Changes Following Nd：YAG Laser Irradiation by SEM.
脉冲Nd:YAG激光照射对人牙周膜成纤维细胞的影响
脉冲Nd:YAG激光 牙周膜成纤维细胞 存活率
2005/12/31
目的 研究不同输出功率和照射时间设置下脉冲Nd : YAG激光照射对人牙周膜成纤维细胞存活率的影响,并分析其相关性,比较照射前后细胞形态学的变化。方法 将原代培养的人牙周膜成纤维细胞接种于96 孔板,细胞按照射时间不同和输出功率不同进行分组并照射。计算细胞的存活率,并比较实验组和对照组细胞存活率的差异,分析输出功率、照射时间与细胞存活率之间的相关性。结果 10 s 组、20 s 组的015 W及1...
脉冲Nd:YAG激光与超声洁刮治联合治疗牙周炎的效果观察
脉冲Nd:YAG激光 慢性牙周炎 超声洁刮治
2003/8/31
目的 观察Nd :YAG激光与超声洁刮治联合治疗牙周炎的临床效果。方法 选择牙周袋4～7 mm的26 颗同颌对称同名的慢性牙周炎患牙,随机分为实验组(激光加洁刮治) 和对照组(洁刮治) 。比较两组患牙治疗前后牙周袋内细菌检出总数和主要细菌组成比。结果 实验组患牙激光照射后即刻, 细菌检出总数较治疗前显著降低( P < 0105) 。完成治疗后两组患牙牙周袋内细菌检出总数较治疗前显著降低( P < ...