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Public Health Dentistry - 3 Questions
Daily fluoride mouth rinse containing 0.05% sodium fluoride has a concentration of about 225 ppm fluoride ions 0.05% sodium fluoride solution = 225 ppm fluoride 0.2% sodium fluoride solution = 900 ppm fluoride The daily rinse (0.05%) is recommended for children aged 6–12 years. The weekly rinse (0.2%) is recommended for older children and adults at higher risk of caries.
If a restoration is not placed following acid etching, the enamel surfaces remain demineralized and vulnerable to further attack from acids, leading to potential decalcification. The etched enamel does not fully remineralize in 48 hours and is at risk for bacterial penetration.
Clinical studies often measure the effectiveness of caries inhibiting preparations by comparing the number of new decayed, filled, and missing tooth surfaces that appear over the course of the study period.
MCQ