Sesame Oil (Sesamum Indicum L.) as a New Challenge for Reinforcement of Conventional Glass Ionomer Cement, Could It Be?

Neven S Aref,Gaetano Isola

doi:10.1155/2021/5516517

Abstract

Purpose 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. Materials and Methods 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 t-test at p < 0.05. Results 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 (p < 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. Conclusions Sesame oil seems to be a promising natural bioactive product for reinforcement of conventional GIC with a clinically agreeable esthetic.

Highlights

Two main resinous restorative materials, resin composites and glass ionomers, are being used as alternatives to mercury-containing restoration due to its deleterious effects [1].ese materials represent revolutionary white restorative materials
Ese properties include an excellent coefficient of linear thermal expansion/contraction and modulus of elasticity, as well as being the only restorative material able to bond chemically to the tooth structure, anticariogenic properties, biocompatibility, and fluoride release and uptake, which contributes to its preventive character [2, 3]
A conventional glass ionomer restorative material (GC Corporation, Tokyo, Japan) and Sesame oil (FLORA, INC., LYNDEN, WA98264, USA) were used in the study. e oil was incorporated into the liquid of the cement in ratios of 3 and 5 (v/v%). e mixtures were kept on the magnetic stirrer for 24 hours for obtaining a homogenous mix. e utilization of these different liquid formulations produced three different groups: control and two experimental groups, as follows: Group I: unmodified glass ionomer cement (GIC)

Summary

Introduction

Two main resinous restorative materials, resin composites and glass ionomers, are being used as alternatives to mercury-containing restoration due to its deleterious effects [1].ese materials represent revolutionary white restorative materials. Two main resinous restorative materials, resin composites and glass ionomers, are being used as alternatives to mercury-containing restoration due to its deleterious effects [1]. Glass ionomer cements (GICs) have been known as materials of choice due to their unique physical and biological criteria [2]. Contrary to composites, they possess negligible shrinkage upon setting. Their poor mechanical properties in terms of low fracture strength, toughness, and wear resistance make them of a lesser use in the stress bearing areas and a subject of improvement [4]. Glass ionomer cement may be indicated for posterior and anterior restorations of deciduous and permanent teeth [5,6,7]

Methods

Results

Discussion

Conclusion