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

AIM: To evaluate the effect of different add-ons on the flexural strength (FS) of glass ionomer cement (GIC). MATERIALS AND METHODS: 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 (TiO(2)) 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% TiO(2) 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. RESULT: 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. CONCLUSION: Glass ionomer cement (GIC) powder can be modified with nHA, nanotitanium, and GIC liquid can be modified with CH to improve its FS. CLINICAL SIGNIFICANCE: 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. HOW TO CITE THIS ARTICLE: 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.