In Vitro Inhibitory Effect of Clove Essential Oil and Its Two Active Principles on Tooth Decalcification by Apple Juice

Figure 2

Calcium concentrations (mg/L) was measured for all groups, without apple juice as negative control (dark bar) and fluoride as positive control (white dots bar). Subsequently, test standard-apple juice only obtained after 24 hours incubation with the tooth (crossed bar), apple juice with clove oil incubated with tooth (black dots bar), apple juice with eugenyl acetate (EA) incubated with tooth (diamonds bar), and apple juice with eugenol (EUG) incubated with tooth (square bar). Measures were assessed using ICP-OES. Calcium was expressed as mg/L from the source and for test juice after swishing with and without teeth.