Cebe F, Bulbul M, Simsek I, Cebe M A, Ozturk B
Department of Restorative Dentistry, Faculty of Dentistry, Abant Izzet Baysal University, Bolu, Turkey.
Department of Prosthodontics, Faculty of Dentistry, Gaziantep University, Gaziantep, Turkey.
Niger J Clin Pract. 2017 Jun;20(6):734-740. doi: 10.4103/1119-3077.181321.
To assess the effect of the erbium:yttrium aluminum garnet (Er:YAG) laser on bond strength of a total-etch adhesive system to the caries-affected dentin on the gingival wall.
Ten human molars with proximal carious lesions were randomly divided into two groups. In the first group, the carious dentin was removed with a bur, whereas in the second group it was removed with the Er:YAG laser. Carious lesions were excavated with one of these two techniques until laser fluorescence values decreased to 15 in the center of the lesions. The teeth were then restored with a total-etch adhesive system (Adper Single Bond 2) and composite resin (Filtek Z250). Five teeth from each group were sectioned to obtain 1 mm2 stick-shaped microtensile specimens from each tooth. Twenty-five specimens were obtained for each group with using this technique. The data were analyzed in independent-samples t-test (α = 0.05). For each removal technique, one sample was analyzed using scanning electron microscopy.
No statistically significant differences were found between the bond strength of the Er:YAG laser and the bur-treated groups (P > 0.05).
The Er:YAG laser treatment did not negatively affect the bonding performance of the total-etch adhesive system to caries-affected dentin on the gingival wall.
评估铒：钇铝石榴石（Er:YAG）激光对全蚀刻粘结系统与龈壁龋损牙本质粘结强度的影响。
将10颗患有邻面龋损的人类磨牙随机分为两组。第一组用牙钻去除龋坏牙本质，而第二组用Er:YAG激光去除。用这两种技术之一挖掘龋损，直到龋损中心的激光荧光值降至15。然后用全蚀刻粘结系统（Adper Single Bond 2）和复合树脂（Filtek Z250）修复牙齿。每组取5颗牙齿切片，从每颗牙齿获得1平方毫米的棒状微拉伸试样。每组用该技术获得25个试样。数据采用独立样本t检验进行分析（α = 0.05）。对于每种去除技术，使用扫描电子显微镜分析一个样本。
Er:YAG激光组和牙钻处理组的粘结强度之间未发现统计学上的显著差异（P > 0.05）。
Er:YAG激光处理对全蚀刻粘结系统与龈壁龋损牙本质的粘结性能没有负面影响。
