Garg Dhruv, Mahabala Karuna, Lewis Amita, Natarajan Srikant, Nayak Anupama, Rao Ashwin
Former student. Manipal College of Dental Sciences, Mangalore, Manipal Academy of Higher Education, Manipal.
Assistant Professor. Department of Pedodontics and Preventive Dentistry, Mangalore, Manipal Academy of Higher Education, Manipal.
J Clin Exp Dent. 2019 Jun 1;11(6):e547-e552. doi: 10.4317/jced.55624. eCollection 2019 Jun.
The efficacy of pit and fissure sealants in preventing occlusal caries is a well-established fact. Considering the difficulty in achieving strict isolation for a longer duration while treating the pediatric patients, a simplified procedure of sealant application is desirable. While, a self-etching sealant, Prevent Seal offers a quick procedure, the physical properties of this material haven't been studied yet. Thus, this study was aimed to comparatively evaluate sealing ability, penetration and adaptation of a self-etching pit and fissure sealant and a conventional resin sealant.
This was an intergroup comparative study, which consisted of 2 groups- Group I (Conventional acid etch sealant, Clinpro) and Group II (Self etching sealant, Prevent Seal). Out of 32 selected teeth 16 were used to study microleakage, with the help of dye penetration test using Övrebö and Raadal criteria. Remaining 16 were used to evaluate sealant penetration and adaptation viz bubbles in the bottom of fissure, debris in the fissure, tags in the bottom of the fissure and tags at cuspal slopes and fissure entrance was done using stereomicroscope. Post stereomicroscopic evaluation 4 samples each were randomly chosen from both the groups and checked for etching pattern using Scanning electronic microscope.
The comparison of tested properties between the groups was done using Chi square test. There was no statistically significant difference observed when microleakage and sealant penetration / adaptation properties were compared between two groups (=0.63 and = 0.131, 0.131, 0.302, 0.106 respectively). No conclusive results could be withdrawn while etching patterns were compared between the groups (=0.717).
The self-etching sealant Prevent seal was found to have similar microleakage, sealant penetration and adaptation properties as conventional acid etch sealant. Pit and fissure sealant, self-etching, scanning electron microscope, sealing ability.
窝沟封闭剂预防咬合面龋齿的疗效是一个公认的事实。考虑到在治疗儿童患者时难以长时间实现严格隔离，简化的封闭剂应用程序是可取的。虽然自酸蚀封闭剂Prevent Seal提供了一种快速程序，但这种材料的物理性能尚未得到研究。因此，本研究旨在比较评估自酸蚀窝沟封闭剂和传统树脂封闭剂的封闭能力、渗透和适应性。
这是一项组间比较研究，由两组组成——第一组（传统酸蚀封闭剂Clinpro）和第二组（自酸蚀封闭剂Prevent Seal）。在32颗选定的牙齿中，16颗用于借助使用Övrebö和Raadal标准的染料渗透试验研究微渗漏。其余16颗用于评估封闭剂的渗透和适应性，即使用立体显微镜观察裂隙底部的气泡、裂隙中的碎屑、裂隙底部的标签以及牙尖斜面和裂隙入口处的标签。立体显微镜评估后，从两组中各随机选取4个样本，使用扫描电子显微镜检查蚀刻模式。
使用卡方检验对两组之间的测试性能进行比较。两组之间比较微渗漏和封闭剂渗透/适应性时，未观察到统计学上的显著差异（分别为=0.63和=0.131、0.131、0.302、0.106）。在比较两组之间的蚀刻模式时，没有得出确凿的结果（=0.717）。
发现自酸蚀封闭剂Prevent seal具有与传统酸蚀封闭剂相似的微渗漏、封闭剂渗透和适应性。窝沟封闭剂，自酸蚀，扫描电子显微镜，封闭能力。
