abstract background and aim: reduction of dental plaque ph is an effective factor in the incidence of dental caries. one of the common methods for assessment of the cariogenic potential of food products is the study of plaque ph changes in the oral environment. the present study was performed due to the importance of dental plaque and its known complications and also the increase in consumption...

herbal extracts have been successfully used in dentistry as tooth cleaning and antimicrobial plaque agents. the aim of this study was to evaluate the clinical effects of a dental gel containing barberry extracts (from berberis vulgaris) on gingivitis and microbial plaque control. a double blind clinical trial study was conducted in a dormitory on 45 boys aged 11-12 years having the same socioec...