Banic Vidal Llubitza Slaviza, Šalinović Ivan, Veček Nikolina Nika, Ivica Anja, Miletić Ivana, Jukić Krmek Silvana
School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia.
Department for Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia.
Materials (Basel). 2025 May 7;18(9):2152. doi: 10.3390/ma18092152.
This study aimed to evaluate the influence of different fluoride-containing toothpastes on fluoride uptake, surface roughness, and microhardness of six ion-releasing restorative dental materials, including glass hybrids (EQUIA Forte HT with and without coating), glass ionomer cements (Fuji IX), resin-modified GICs (Fuji II LC), alkasites (Cention Forte), and ion-releasing composites (Luminos UN and Activa). Specimens were prepared and subjected to a four-day brushing protocol using six toothpastes with varying fluoride formulations (NaF, SnF2, SMFP) and concentrations. Fluoride uptake was assessed by measuring fluoride release using an ion-selective electrode, while surface roughness and microhardness were assessed before and after brushing. Results revealed significant variations in fluoride uptake, with Fuji IX and EQUIA Forte HT showing the highest release, particularly when brushed with NaF-based toothpastes (Duraphat 5000 and 2800). Surface roughness increased post-brushing, with the greatest changes observed in Activa, while microhardness decreased across most materials, except for coated EQUIA Forte HT, which exhibited improved compactness. Resin-based composites, such as Luminos UN and Activa, demonstrated lower fluoride uptake and minimal changes in microhardness compared to GICs. The findings underscore the importance of material composition and toothpaste formulation in influencing fluoride dynamics, surface properties, and mechanical performance of restorative materials.
本研究旨在评估不同含氟牙膏对六种释离子型口腔修复材料氟摄取、表面粗糙度和显微硬度的影响，这六种材料包括玻璃混合材料（有涂层和无涂层的 EQUIA Forte HT）、玻璃离子水门汀（Fuji IX）、树脂改性玻璃离子水门汀（Fuji II LC）、碱式硅酸盐（Cention Forte）和释离子型复合材料（Luminos UN 和 Activa）。制备样本并使用六种具有不同氟配方（NaF、SnF2、SMFP）和浓度的牙膏进行为期四天的刷牙实验。通过使用离子选择性电极测量氟释放来评估氟摄取，同时在刷牙前后评估表面粗糙度和显微硬度。结果显示氟摄取存在显著差异，Fuji IX 和 EQUIA Forte HT 释放量最高，尤其是在用含 NaF 的牙膏（Duraphat 5000 和 2800）刷牙时。刷牙后表面粗糙度增加，Activa 变化最大，而除了有涂层的 EQUIA Forte HT 显微硬度有所改善外，大多数材料的显微硬度都降低了。与玻璃离子水门汀相比，基于树脂的复合材料，如 Luminos UN 和 Activa，氟摄取较低且显微硬度变化最小。这些发现强调了材料成分和牙膏配方在影响修复材料氟动力学、表面性质和机械性能方面的重要性。
