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Introduction: Twigs of Salvadora persica (Miswak) plant are being used as a means of oral hygiene since ages for brushing teeth. Though clinical research and trials have shown promising results on effectiveness of Miswak, but some reports are conflicting., Aim: To evaluate the antimicrobial activity of crude aqueous and alcoholic extracts of Salvadora persica (Miswak) against the common microbial pathogens causing dental caries and periodontitis., Materials and Methods: A prospective study of one year duration was conducted in Yenopoya dental and medical college, Mangalore. The twigs of Salvadora persica were collected and alcoholic and aqueous extracts were prepared using standard techniques. The antimicrobial properties of the extracts against common oral pathogens like Streptococcus mutans, Streptococcus mitis, Candida albicans, Lactobacillus acidophilus, Prevotella intermedia, & Peptostreptococcus were performed by agar well diffusion method and two fold broth dilution method., Results: No significant results was obtained when water extracts of Salvadora persica was tested except for minimum inhibitory effect against Streptococcus mutans, Prevotella intermedia & Peptostreptococcus and Candida albicans . Relatively significant inhibitory effect was noted with respect to alcoholic extract of Salvadora persica ., Conclusion: Although comparatively less than chlorhexidine which is a known antimicrobial agent, the alcoholic extracts of Salvadora persica showed antimicrobial effect against the common microbial pathogens causing dental caries and periodontitis indicating a potential beneficial effect of this plant. However, further research with more standardized extraction procedure and advanced techniques is required to find out the exact chemicals responsible for the antimicrobial properties of the plant extract.

Background: Directly observed treatment short course (DOTS) and self-administered therapy (SAT) are the treatment options available for tuberculosis (TB). Studies conducted worldwide have shown difference in treatment outcome with these two treatment modalities., Aim: The study was undertaken to compare treatment outcome of DOTS and SAT in patients of pulmonary TB taking SAT from a tertiary care hospital and DOTS from the DOTS centre of a government hospital., Materials and Methods: It was a retrospective comparative study. The case record files of patients with pulmonary TB diagnosed from March 2011 to February 2012 were analysed as per the proforma. The sample size of patients was 150 (75 each from DOTS and SAT)., Results: The treatment outcome in DOTS group was cured 70.7%, treatment completed 1.3%, failure 5.3%, deaths 10.7%, defaulters 8% and transferred out 4% whereas in SAT group, cure was seen in 68% and 4% completed the treatment, 1.3% had treatment failure, and 26.7% were lost to follow up which included deaths, defaulters and those patients who switched over to other hospitals. The treatment success rate was similar (72%) in both groups. There was no statistically significant difference observed in the average weight gain at the end of treatment between the two groups. A total of 11 adverse drug reactions (4 DOTS, 7 SAT) were recorded in the study., Conclusion: The study shows no statistically significant difference between success rate in patients taking DOTS and SAT.