ABSTRACT

Pit and fissure sealants (PFSs) are the optimal treatment options to prevent occlusal caries. The aim of this in-vitro study was to evaluate the effect of ozone pretreatment on dental PFS retention when applied before or after acid etching. The retention of the PFSs was tested by microtensile bond strength test, scanning electron microscope (SEM) analysis, and microleakage evaluation. The present study found that sealant application with ozone pretreatment at a concentration of 60–80 µg/mL for 40 seconds, especially when used after acid etching, resulted in significantly less microleakage formation and better sealant penetration than traditional sealant application; however, it had no significant effect on bond strength.

摘要

窝沟封闭剂 (PFS) 是预防咬合龋的最佳治疗选择。这项体外研究的目的是评估在酸蚀之前或之后应用臭氧预处理对牙齿 PFS 保留的影响。通过微拉伸粘合强度测试、扫描电子显微镜 (SEM) 分析和微泄漏评估来测试 PFS 的保留。目前的研究发现，使用臭氧预处理的密封胶在 60–80 µg/mL 浓度下持续 40 秒，尤其是在酸蚀后使用时，与传统密封胶相比，微泄漏形成显着减少，密封胶渗透性更好；但是，它对粘合强度没有显着影响。