Korkmaz Fatih Mehmet, Baygin Ozgul, Tuzuner Tamer, Bagis Bora, Arslan Ipek
Department of Prosthodontics, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkiye.
Department of Pediatric Dentistry, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkiye.
Eur J Dent. 2013 Sep;7(Suppl 1):S033-S040. doi: 10.4103/1305-7456.119061.
The aim of this in vitro study was to compare the microleakage and bond strength of Class V silorane-based and universal micro-hybrid composite restorations prepared either with diamond bur or with an erbium, chromium: yttrium-scandium-gallium-garnet (Er, Cr:YSGG) laser.
A total of 160 molar teeth were used for microleakage assessment and shear bond strength (SBS) test. The specimens were prepared using either diamond bur or 3 W-, 4 W- and 5 W-20 Hz Er, Cr:YSGG laser irradiation. All specimens were subjected to thermocycling (500 times at 5 ± 2°C to 55 ± 2°C, dwell time 15 s and transfer time 10 s). Microleakage was assessed using a 0.5% basic-fuchsin solution. The bond strengths were determined using a microtensile tester at a crosshead speed of 0.5 mm/min. The Kruskal Wallis test was used for the analysis of microleakage and a one-way analysis of variance test was used to analyze the SBS (P < 0.05).
No statistically significant differences were found (P > 0.05) between Er, Cr:YSGG laser and bur preparation methods regarding microleakage and bond strength values.
Irradiation with Er, Cr:YSGG laser was confirmed to be as effective as conventional methods for preparing cavities before adhesive restorations.
本体外研究旨在比较使用金刚石车针或铒铬：钇钪镓石榴石（Er, Cr:YSGG）激光制备的V类硅烷类和通用微混合复合树脂修复体的微渗漏和粘结强度。
总共160颗磨牙用于微渗漏评估和剪切粘结强度（SBS）测试。使用金刚石车针或3W、4W和5W - 20Hz的Er, Cr:YSGG激光照射制备标本。所有标本均进行热循环（在5±2°C至55±2°C下循环500次，停留时间15秒，转移时间10秒）。使用0.5%碱性品红溶液评估微渗漏。使用微拉伸试验机以0.5mm/min的十字头速度测定粘结强度。使用Kruskal Wallis检验分析微渗漏，使用单因素方差分析检验分析SBS（P < 0.05）。
在微渗漏和粘结强度值方面，Er, Cr:YSGG激光和车针制备方法之间未发现统计学上的显著差异（P > 0.05）。
证实Er, Cr:YSGG激光照射在粘结修复前制备窝洞方面与传统方法一样有效。
