Introduction: Due to fluorides cariostatic and reminilerising properties it has been advocated as a major contributor in the treatment and prevention of dental caries. The use of fluoride containing mouthrinses has been recommended in conditions such as the presence of carious lesions, orthodontic appliance or prosthesis, gingival recession, chemotherapy or radiotherapy treatment, decreased salivary flow, and patients with physical or physiological disability. The daily rinse with 0.05% sodium fluoride (NaF) mouth rinse has been reported to be very effective for orthodontic patients with fixed appliances.Therefore, the aim of the study is to assess the fluoride concentration of different commercially available mouthrinses in India and compare the obtained measurements in labeled values. Materials and Method: The present study is an in vitro study conducted at Eco tech labs Pvt Ltd, chennai, india. Four fluoride mouthrinses samples were selected out of many available in the market based on their popularity and maximum usage in chennai city whose labels indicate the concentration of sodium fluoride. Result:Three brands (sample 1,2,3) showed significantly higher concentration compared with the label value. Sample 4 had a significantly lower concentration (195 ppm) compared with the label value ( 220 ppm). Concerns over fluoride toxicity frequently arise especially for use by children. The approximate toxic dose of fluoride has been estimated to be 5 mg/kg. Therefore, accurate labeling and controlled production of the prescribed concentration of fluoride by the manufactures, and supervised use by the parents is essential to prevent any toxic reactions. Conclusion: Most of the commercially available mouthrinses provide topical fluoride to the consumers at concentrations below the manufacturer's label value, but above the recommended 0.05%.One product contained only 0.2% fluoride, and 1 brands provide significantly low concentrations. Dental professionals must be aware of the exact concentration of fluoride available in solution, gels,and varnishes to avoid the risk of toxicity and to insure the effectiveness of the prescribed mouth rinses.

Fluoride, Mouthrinse, Dental plaque, Dental caries prevention,