FLEXURAL AND MORPHOLOGICAL PROPERTIES OF NEWLY DEVELOPED GLASS IONOMER CEMENT (GIC) WITH THE INCORPORATION OF 3-ACETYLCOUMARIN

Azlisham NAF, Abdul Rahman FS, Mohamad D*

Abstract

FLEXURAL AND MORPHOLOGICAL PROPERTIES OF NEWLY DEVELOPED GLASS IONOMER CEMENT (GIC) WITH THE INCORPORATION OF                3-ACETYLCOUMARIN

Azlisham NAF, Abdul Rahman FS, Mohamad D[1]

School of Dental Sciences, Universiti Sains Malaysia,

16150 Kubang Kerian, Kelantan, Malaysia.

The objective of the present study is to evaluate the effect of incorporation of 3-acetylcoumarin (3-AC), an antibacterial agent, on the mechanical and surface morphology of glass ionomer cement (GIC). A conventional GIC, Fuji II LC, was used as a control. 3-AC was incorporated into GIC during its manipulation at percentage of 2% and 5% (wt/wt). Flexural strength of the specimens were analysed using Shimadzu AGX-Plus while morphological evaluation of the specimens were observed using Scanning Electron Microscope (SEM). One-way analysis (ANOVA) with post-hoc Bonferroni multiple-range test was used to determine the significant differences among the groups. Statistically, the incorporation of 2% (wt/wt) of 3-AC into GIC showed a significantly lower flexural strength (p<0.05), while the 5% (wt/wt) of 3-AC is insignificant compared to the control GIC. Cracks and voids were clearly seen on the morphological evaluation of all the specimens.

Keywords: Glass Ionomer Cement (GIC), coumarin derivatives, Scanning Electron Microscope

[1] Corresponding author: Tel: +6 09 767 5807

E-mail: dasmawati@usm.my