Comparative Evaluation of Flexural Strength of Conventional Glass Ionomer Cement and Glass Ionomer Cement Modified with Chitosan, Titanium Dioxide Nanopowder and Nanohydroxyapatite: An In Vitro Study.

Abstract

To evaluate the effect of different add-ons on the flexural strength (FS) of glass ionomer cement (GIC). Around 72 samples were fabricated and divided among the following six different groups: group I-control (conventional GIC-nonmodified), group II-GIC powder modified with 3% titanium dioxide (TiO2) and liquid is unmodified, group III-powder modified with 10% nanohydroxyapatite (nHA) and liquid is unmodified, group IV-powder is unmodified and Liquid is modified with 10% chitosan (CH), group V-powder is modified with 3% TiO2 and liquid is modified with 10% CH, and group VI-powder is modified with 10% nHA and liquid is modified with 10% CH. The samples were then subjected to a three-point bending test on a universal testing machine for the evaluation of FS. The results obtained were analyzed statistically using the analysis of variance (ANOVA) test. The mean FS value of group V depicts significantly high FS among all groups (29.42 ± 3.35). A significant difference was present in FS amongst all the groups that is groups V>II>IV>VI>III>I. Glass ionomer cement (GIC) powder can be modified with nHA, nanotitanium, and GIC liquid can be modified with CH to improve its FS. Glass ionomer cement (GIC) supplemented with additives like nanoparticles (NPs) and CH can be used as an enhanced filling material due to its potential antibacterial properties and in areas with a high masticatory load. Showkat I, Chaudhary S, Sinha AA, et al. Comparative Evaluation of Flexural Strength of Conventional Glass Ionomer Cement and Glass Ionomer Cement Modified with Chitosan, Titanium Dioxide Nanopowder and Nanohydroxyapatite: An In Vitro Study. Int J Clin Pediatr Dent 2023;16(S-1):S72-S76.