Mansoor Afsheen, Khan Muhammad Talal, Mehmood Mazhar, Khurshid Zohaib, Ali Muhammad Ishtiaq, Jamal Asif
Department of Microbiology, Quaid-i-Azam University, Islamabad 45320, Pakistan.
Department of Dental Material Sciences, School of Dentistry, Shaheed Zulfiqar Ali Bhutto Medical University, Islamabad 44080, Pakistan.
Nanomaterials (Basel). 2022 Mar 25;12(7):1078. doi: 10.3390/nano12071078.
The prevalence of dental caries has been largely consonant over time despite the enhancement in dental technologies. This study aims to produce novel GIC restorative material by incorporating TiO nanoparticles synthesized by for the treatment of dental caries. The TiO nanoparticles were prepared by inoculating a fresh culture of into a nutrient broth for 24 h, which was then characterized by XRD, DRS, FTIR, AFM, SEM, TEM and EDX. These TiO nanoparticles were incorporated in GIC restorative material at different concentrations (0-10% TiO -GIC) and were tested for their mechanical properties in a universal testing machine. The XRD analysis revealed synthesis of anatase and rutile-phased TiO nanoparticles with a particle size of 70.17 nm that was further confirmed by SEM and TEM analysis. The EDX spectrum indicated prominent peaks of titanium and oxygen with no impurities in the prepared material. Treatment with 5% TiO -GIC proved to be most effective for the treatment of dental caries with no observable cytotoxic effect. An increase in the compressive strength of TiO nanoparticle-reinforced GIC was observed as the concentration of the TiO nanoparticles was increased up to 5%; subsequently, the compressive strength was lowered. An increase in the flexural strength was observed in GIC containing 0%, 3% and 5% TiO nanoparticles sequentially. Based on the results, it can be concluded that -derived TiO nanoparticles have excellent potential for developing next generation of restorative materials for dental issues.
尽管牙科技术有所进步,但龋齿的患病率长期以来基本保持一致。本研究旨在通过掺入由[具体方法]合成的TiO纳米颗粒来制备新型玻璃离子水门汀(GIC)修复材料,用于治疗龋齿。通过将[具体菌种]的新鲜培养物接种到营养肉汤中24小时来制备TiO纳米颗粒,然后通过X射线衍射(XRD)、漫反射光谱(DRS)、傅里叶变换红外光谱(FTIR)、原子力显微镜(AFM)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)和能谱分析(EDX)对其进行表征。这些TiO纳米颗粒以不同浓度(0 - 10% TiO - GIC)掺入GIC修复材料中,并在万能试验机上测试其力学性能。XRD分析表明合成了粒径为70.17 nm的锐钛矿相和金红石相TiO纳米颗粒,SEM和TEM分析进一步证实了这一点。EDX光谱表明制备的材料中钛和氧的峰突出,无杂质。用5% TiO - GIC处理对龋齿治疗最为有效,且未观察到细胞毒性作用。随着TiO纳米颗粒浓度增加至5%,观察到TiO纳米颗粒增强的GIC的抗压强度增加;随后,抗压强度降低。依次观察到含有0%、3%和5% TiO纳米颗粒的GIC的抗弯强度增加。基于这些结果,可以得出结论,[具体来源]衍生的TiO纳米颗粒在开发下一代牙科修复材料方面具有巨大潜力。