Aref Neven S
Department of Dental Biomaterials, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
Department of Basic Oral and Medical Sciences, College of Dentistry, Qassim University, Buraydah, Saudi Arabia.
Int J Dent. 2021 Mar 22;2021:5516517. doi: 10.1155/2021/5516517. eCollection 2021.
Despite the advantages of glass ionomer cement (GIC) including chemical bonding to the tooth structure and fluoride release, its low-grade mechanical properties make it a topic for research. Accordingly, this study was conducted to assess the ability of sesame oil as a natural bioactive additive to reinforce conventional glass ionomer cement.
Sesame oil was blended into the liquid component of the cement in ratios of 3 and 5 (v/v%). One control and two experimental groups were enrolled in the study; I: unmodified GIC (control), II: 3 (v/v%) sesame oil-modified GICs, and III: 5(v/v%) sesame oil-modified GICs. Compressive strength, shear bond strength, diametral tensile strength, surface microhardness, surface roughness, and color stability were the parameters assessed. A representative specimen of each group was analyzed for its chemical structure by Fourier transformation infrared spectroscopy. One-way ANOVA followed by Tukey test was used to analyze the collected data of all evaluated parameters except the color stability results, which were analyzed by Student -test at < 0.05.
Three and 5 (v/v%) sesame oil-modified GICs exhibited significant increase in their compressive strength, shear bond strength, diametral strength, and surface microhardness. Concurrently, there was a significant decrease in surface roughness ( < 0.05) in both formulations of the modified cement. Both 3 and 5 (v/v%) sesame oil-modified GICs showed a clinically acceptable color change.
Sesame oil seems to be a promising natural bioactive product for reinforcement of conventional GIC with a clinically agreeable esthetic.
尽管玻璃离子水门汀（GIC）具有诸多优点，包括与牙齿结构的化学键合和氟释放，但其较低的机械性能使其成为研究的课题。因此，本研究旨在评估芝麻油作为一种天然生物活性添加剂增强传统玻璃离子水门汀的能力。
将芝麻油按3%和5%（v/v%）的比例混入水门汀的液体成分中。本研究纳入了一个对照组和两个实验组；I组：未改性的GIC（对照组），II组：3%（v/v%）芝麻油改性的GIC，III组：5%（v/v%）芝麻油改性的GIC。评估的参数包括抗压强度、剪切粘结强度、径向拉伸强度、表面显微硬度、表面粗糙度和颜色稳定性。通过傅里叶变换红外光谱对每组的代表性标本进行化学结构分析。除颜色稳定性结果采用Student检验（P<0.05）分析外，对所有评估参数收集的数据采用单因素方差分析和Tukey检验进行分析。
3%和5%（v/v%）芝麻油改性的GIC在抗压强度、剪切粘结强度、径向强度和表面显微硬度方面均有显著提高。同时，改性水门汀的两种配方的表面粗糙度均显著降低（P<0.05）。3%和5%（v/v%）芝麻油改性的GIC均显示出临床上可接受的颜色变化。
芝麻油似乎是一种有前景的天然生物活性产品，可用于增强传统GIC，并具有临床上令人满意的美观效果。
