Glass ionomer cement (GIC) is widely used in dentistry because of its chemical adhesion to tooth structure, fluoride release, biocompatibility, and stability in an aqueous environment. However, its relatively low compressive strength restricts its use in stress-bearing areas. Hydroxyapatite [Ca₁₀(PO₄)₆(OH)₂], a bioceramic material structurally similar to natural tooth mineral, has demonstrated potential to enhance the mechanical properties of dental materials, particularly in nanoscopic form. This study evaluated the effect of incorporating naturally synthesized nano-hydroxyapatite into glass ionomer luting cement on compressive strength. Nano-hydroxyapatite was added at 4% by weight to Fuji I commercial GIC, and the compressive strength of the modified cement was compared with that of conventional GIC. Within the limitations of the study, incorporation of nano-hydroxyapatite resulted in a 42% increase in compressive strength, exceeding improvements reported with synthetic nano-hydroxyapatite. These findings suggest that naturally synthesized nano-hydroxyapatite is a promising additive for glass ionomer luting cements, warranting further biocompatibility and clinical investigations..
Keywords: GIC luting cement, compressive strength, nanohydroxyapatite, natural synthesis.
How to cite this article: Karthik SM, Divekar K, Deshpande A, Jadhav P.; Effect Of Incorporation Of Naturally Synthesized Nanohydroxyapatite On Compressive Strength Of Glass Ionomer Luting Cement – An In Vitro Study..Int J Drug Deliv Technol. 2026;16(1s): 630-634; DOI: 10.25258/ijddt.16. 630-634