Antibacterial activity of new atraumatic restorative treatment materials incorporated with Azadirachta indica (Neem) against Streptococcus mutans.

The antibacterial property of new atraumatic restorative treatment (ART) materials incorporated with Azadirachta indica (Neem) on Streptococcus mutans was carried out.

The study was carried out by using the agar diffusion method to determine the antibacterial property of ART materials (ART-I and ART-II). The zone of inhibition was tabulated, and the data was statistically analyzed using the student t-test. The minimum inhibitory concentrations (MIC) and the minimum bactericidal concentrations (MBC) of the ethanolic extract of Neem were recorded.

The MIC and MBC of the mixture of the ethanolic extract of Neem was 3.13% and 12.5% respectively. The zone of inhibition of ART-I and ART-II was 11.81 mm and 11.97 mm respectively. Significant differences were observed between these two ART materials (P = 0,08).

Both the new ART materials i.e. ART-I and ART-II have considerable antibacterial activity against S. mutans.