Kumar Pragya, Shenoy Arvind, Joshi Sonal
Department of Conservative Dentistry and Endodontics, ITS-CDSR, Muradnagar, Ghaziabad, Uttar Pradesh, India.
J Conserv Dent. 2012 Jul;15(3):265-9. doi: 10.4103/0972-0707.97955.
The aim of this in vitro study was to evaluate the microleakage of two different generation bonding agents in the presence of various surface contaminants.
Class V cavities were prepared on 150 extracted human permanent molars. The samples were randomly divided into two main groups of 75 teeth each. Group I: Fifth generation bonding system (Single Bond, 3M). Group II: Seventh generation bonding system (iBond, Kulzer). Subgroups were formed according to exposure to different surface contaminants (saliva, blood, caries disclosing agent and haemostatic agent). Cavities were restored with hybrid composite (Z-100, 3M) and evaluated for microleakage. The scores were subjected to 't' test and analysis of variance (ANOVA) test.
Single Bond and iBond did not provide complete resistance to microleakage when there was no contamination. Microleakage was minimum in the no contamination subgroup and maximum with the haemostatic agent subgroup for both the groups.
Single bond showed lesser micro leakage in contaminated conditions.
本体外研究的目的是评估在存在各种表面污染物的情况下两种不同代粘结剂的微渗漏情况。
在150颗拔除的人类恒牙上制备V类洞。样本随机分为两个主要组，每组75颗牙。第一组：第五代粘结系统（单键，3M）。第二组：第七代粘结系统（iBond，库尔泽）。根据暴露于不同表面污染物（唾液、血液、龋齿显示剂和止血剂）形成亚组。用混合复合材料（Z - 100，3M）修复窝洞，并评估微渗漏情况。对分数进行“t”检验和方差分析（ANOVA）检验。
当没有污染时，单键和iBond都不能完全抵抗微渗漏。两组在无污染亚组中的微渗漏最小，在止血剂亚组中最大。
在污染条件下单键显示出较小的微渗漏。
