Department of Pediatric and Preventive Dentistry, Guru Nanak Institute of Dental Sciences and Research, Panihati, Kolkata, India.
Department of Oral and Maxillofacial Pathology, Buddha Institute of Dental Sciences and Hospital, Patna, Bihar, India.
J Indian Soc Pedod Prev Dent. 2024 Jul 1;42(3):240-248. doi: 10.4103/jisppd.jisppd_22_24. Epub 2024 Sep 9.
Caries in primary teeth rapidly advances owing to its thin structure, thereby requiring restoration. However, restorations often fail due to various causes such as secondary caries and reduced microtensile bond strength (μTBS), which calls for the use of antimicrobial agents such as silver diamine fluoride (SDF).
This study aims to measure and analyse the effect of SDF application on the μTBS of three regularly used restorative materials to dentin of primary teeth as well as compare the types of bond failure interfaces under SEM.
The study comprised 60 samples equally divided into six groups among three restorative materials, namely, glass ionomer cement (GIC, Groups I and II), resin-modified glass ionomer cement (RMGIC, Groups III and IV), and composite resin (Groups V and VI) with subdivisions of A and B, where A represented samples with SDF application and B represented samples without SDF application.
It was observed that μTBS of RMGIC to sound and carious dentin irrespective of SDF application was found to be statistically significant (P < 0.05), and when GIC, RMGIC, and composite resins were compared to both sound and carious dentin irrespective of SDF application, it was statistically significant (P < 0.05). SEM analysis revealed predominantly cohesive failures among all the groups.
Based on the results, it was concluded that SDF has no adverse effect on the μTBS of GIC, RMGIC, and composite resin to both carious and sound dentin of primary teeth.
由于结构较薄，乳牙龋齿迅速发展，因此需要进行修复。然而，由于继发性龋齿和微拉伸结合强度（μTBS）降低等各种原因，修复往往会失败，这就需要使用抗菌剂，如银胺氟化物（SDF）。
本研究旨在测量和分析 SDF 应用对三种常用的乳牙牙本质修复材料的 μTBS 的影响，并通过 SEM 比较不同类型的结合失败界面。
本研究包括 60 个样本，平均分为三组修复材料，玻璃离子水门汀（GIC，I 组和 II 组）、树脂改性玻璃离子水门汀（RMGIC，III 组和 IV 组）和复合树脂（V 组和 VI 组），并进一步细分为 A 和 B 两组，其中 A 组代表应用 SDF 的样本，B 组代表未应用 SDF 的样本。
结果表明，无论是否应用 SDF，RMGIC 对正常和龋齿牙本质的 μTBS 均具有统计学意义（P<0.05），而当 GIC、RMGIC 和复合树脂与正常和龋齿牙本质进行比较时，无论是否应用 SDF，均具有统计学意义（P<0.05）。SEM 分析显示，所有组均主要发生黏合性破坏。
根据研究结果得出结论，SDF 对 GIC、RMGIC 和复合树脂在正常和龋齿牙本质的 μTBS 没有不良影响。
