Department of Prosthodontics, Faculty of Dentistry, Taif University, Taif, Saudi Arabia.
Faculty of Dental Medicine, Al Azher University (Boys), Cairo, Egypt.
Med Sci Monit. 2024 Mar 11;30:e943502. doi: 10.12659/MSM.943502.
BACKGROUND Modification of the glass fiber post (GFP) with titanium dioxide or silver particles can improve the durability and reliability of dental treatments for ensuring long-term success. This research assessed the tensile bond strength (TBS) of an adhesive system used for cementing GFPs into root dentin following the incorporation of nanoparticles of titanium dioxide (NTiO2) and silver (NAg). MATERIAL AND METHODS Sixty human maxillary canines were prepared to create a 10-mm intra-radicular space for post placement from the cementoenamel junction. The specimens were randomly allocated into 2 groups (a non-thermocycling group and a thermocycling group). Each group was divided into 3 subgroups (10 samples each) according to the adhesive system used (adhesive system devoid of any addition, adhesive system including 1% NAg, and adhesive system infused with 1% NTiO2). TBS tests were conducted and recorded in MPa using a Universal Testing Machine, with an axial load applied at a rate of 0.5 mm/min until failure. The TBS for both groups (non-thermocycling and thermocycling) was measured in megapascals (MPa), and the failure type was recorded. The data were statistically analyzed using one-way analysis of variance (ANOVA) and Tukey's test with P.
在玻璃纤维桩（GFP）中添加二氧化钛或银颗粒可以提高牙科治疗的耐用性和可靠性，以确保长期成功。本研究评估了在根管内放置玻璃纤维桩后，将纳米二氧化钛（NTiO2）和银（NAg）纳米颗粒掺入用于黏合 GFP 的黏接系统的拉伸结合强度（TBS）。
从牙釉质牙骨质界制备 60 个人上颌尖牙，以在根管内创建 10-mm 的桩腔。将标本随机分为 2 组（非热循环组和热循环组）。每组根据使用的黏接系统（不含任何添加剂的黏接系统、含 1% NAg 的黏接系统和注入 1% NTiO2 的黏接系统）进一步分为 3 个亚组（每组 10 个样本）。使用万能试验机以 0.5mm/min 的速率施加轴向载荷进行 TBS 测试，并记录以兆帕（MPa）为单位的 TBS，记录失效类型。使用单向方差分析（ANOVA）和 Tukey 检验对两组（非热循环和热循环）的 TBS 进行统计分析，P 值。
