AimThis study was aimed to evaluate effects of various beverages on microhardness of esthetic restorative materials.Materials and methodsA total of 160 disk-like specimens were prepared with 40 specimens each using nanocomposite resin, nano-ionomer, compomer, and conventional composite resin as experimental groups. Forty primary teeth were prepared and mounted in acrylic to be used as control group. Microhardness of the restorative materials was measured using Vickers microhardness tester at baseline and after immersion in various beverages. The difference between the two readings was evaluated within different groups.ResultsIn general, low pH beverages adversely affected the properties of the tested materials. Microhardness of tested materials was significantly decreased after immersion in various beverages with the exception of Yakult. After the immersion period, the enamel showed the maximum loss in microhardness followed by nano-ionomer.ConclusionLow pH beverages were the most aggressive media for enamel, nano-ionomer and compomer, but in contrast, composite resin was relatively less affected. Probiotic drink appeared relatively benign toward the tested materials.How to cite this article: Gupta R, Madan M, Dua P, Saini S, Mangla R, Kainthla T, Dupper A. Comparative Evaluation of Microhardness by Common Drinks on Esthetic Restorative Materials and Enamel: An in vitro Study. Int J Clin Pediatr Dent 2018;11(3):155-160.

Majority of the antidepressant drugs improve depressive symptoms, but they exert multiple unwanted side effects. The search for more efficacious and well tolerated drugs is in progress. Owning to this, the present study was designed to evaluate the antidepressant activity of alcoholic extract of the fruits of Osmanthus fragrans (AEFOF) in mice. It was evaluated using the Tail Suspension Test (TST), Forced Swimming Test (FST) and influence on spontaneous locomotor activity (SLMA) in mice. The AEFOF (75 mg kgG From the present study, it can be concluded that the AEFOF possess potent antidepressant activity as shown by the TST and FST tests and is toxicologically safe.

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