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. 2015 Feb 1;9(2):ZC50–ZC53. doi: 10.7860/JCDR/2015/11526.5599

[Table/Fig-1]:

Antimicrobial efficacy of six plant extracts against Streptococcus mutans Chlorhexidine was evaluated as a positive control with 22.57 mm of mean diameter of inhibition zone

Samples Crude Extracts Organic Solvents Aqueous Extracts p-value
Aloe vera 6.17±0.16 15.81±0.12 12.15±0.15 0.001
Amla 14.22±0.32 11.02±0.11 19.47±0.05
Garlic 24.62±0.18 12.84±0.07 15.89±0.22
Ginger 7.65±0.27 18.76±0.05 14.02±0.32
Neem 7.79±0.05 14.30±0.22 17.09±0.17
Tulsi 6.87±0.75 16.27±0.16 9.03±0.02

Distilled water for aqueous extracts and Dimethyl sulfoxide for Organic solvent based extracts was evaluated as a negative control with 6.00 mm of mean diameter of inhibition zone