Karaman Emel, Yazici A Ruya, Aksoy Burak, Karabulut Erdem, Ozgunaltay Gul, Dayangac Berrin
Department of Restorative Dentistry, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkiye.
Department of Restorative Dentistry, Faculty of Dentistry, Hacettepe University, Ankara, Turkiye.
Eur J Dent. 2013 Sep;7(Suppl 1):S060-S065. doi: 10.4103/1305-7456.119075.
The objective of this study was to evaluate the effect of operator variability on microleakage with different adhesive systems.
A total of 180 standardized Class V cavities were prepared on facial and lingual of 90 extracted human premolar teeth and randomly assigned to five groups according to the adhesive systems used (n = 36): Prime and Bond NT (PB), Single Bond (SB), Futura Bond NR, Xeno III (XE) and Adper Prompt-L-Pop (LP). The adhesive groups were then further subdivided into three operator groups according to level of clinical experience (n = 12): An undergraduate student, a research assistant and a faculty member. All cavities were restored with same composite resin. The restored teeth were thermocycled (500 cycles, 5-55°C) then immersed in 0.5% basic fuchsin and measured for leakage under a stereomicroscope. Statistical analyses were performed with the Kruskal-Wallis and Mann-Whitney U tests.
Significant inter-operator variation was found in the enamel margins in the XE group with significantly higher microleakage when used by the undergraduate student (P < 0.05). Although no significant differences in microleakage were found between adhesive systems for the research assistant and faculty member (P > 0.05), significant differences were observed between PB and LP, PB and XE, SB and LP and SB and XE in the enamel margins for the undergraduate student (P < 0.05).
Microleakage of adhesive systems is more dependent on interactions between the operator and adhesive material than on the choice of adhesive material.
本研究的目的是评估操作人员的差异对不同粘结系统微渗漏的影响。
在90颗拔除的人类前磨牙的颊面和舌面制备180个标准化的V类洞，并根据所使用的粘结系统随机分为五组（n = 36）：Prime and Bond NT（PB）、Single Bond（SB）、Futura Bond NR、Xeno III（XE）和Adper Prompt-L-Pop（LP）。然后根据临床经验水平将粘结剂组进一步细分为三个操作人员组（n = 12）：一名本科生、一名研究助理和一名教员。所有洞均用相同的复合树脂修复。修复后的牙齿进行热循环（500次循环，5 - 55°C），然后浸入0.5%的碱性品红中，并在体视显微镜下测量渗漏情况。采用Kruskal-Wallis和Mann-Whitney U检验进行统计分析。
在XE组的釉质边缘发现操作人员之间存在显著差异，本科生使用时微渗漏明显更高（P < 0.05）。虽然研究助理和教员使用粘结系统时微渗漏没有显著差异（P > 0.05），但本科生使用时，PB和LP、PB和XE、SB和LP以及SB和XE在釉质边缘存在显著差异（P < 0.05）。
粘结系统的微渗漏更多地取决于操作人员与粘结材料之间的相互作用，而不是粘结材料的选择。
