Mutagenicity potential (affect) of new atraumatic restorative treatment (ART) material incorporated with Azadirachta indica (Neem) against Salmonella typhimurium

Publication date: Available online 28 August 2018

Source: Journal of Oral Biology and Craniofacial Research

Author(s): P. Divya Kumari, Dr A. Veena Shetty, Dr Shahnawaz Khijmatgar, Avidyuti Chowdhury, Edward Lynch, Chitta R. Chowdhury

Abstract

Background

The mutagenicity potential of a new atraumatic restorative treatment (ART) material against Salmonella typhimurium without metabolic activity using the Ames test (genotoxicity) was carried out.

Methods and materials

The potential mutagenicity of new atraumatic restorative treatment materials (ART-I and ART-II) was analyzed using the Ames test. The materials were eluted in dimethyl sulphoxide, 0.9% NaCl solution and sterilized de-ionized water and the aliquots were used after an incubation period of 24 h at 37 °C. Mutagenic effects of the materials were tested on Salmonella typhimurium strains TA 98 and TA 100 using the standard assay, and in absence of S9 fraction from rat liver.

Result

No mutagenic effects were detected for these new ART materials on S. typhimurium TA100. The incubated DMSO extract and 0.9% NaCl extract (50 μl/plate) of the ART-I exhibited a weak mutagenic potential on S. typhimurium TA 98. In particular, Aqua extract (50 μl/plate) of ART-II, was associated with a weak mutagenic potential on S. typhimurium TA98.

Conclusion

Both ART materials (ART–I and II) exhibited weak mutagenic effects on S. typhimurium TA98 whereas no mutagenic effect was detected on S. typhimurium TA100. ART-II is safer than ART-I.

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