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Public Health Dentistry - 3 Questions
Pit and fissure caries are initiated by the accumulation of food debris and bacteria in deep, narrow fissures and pits on the tooth surface, which are protected from the normal cleansing mechanisms of the mouth, even in the absence of a thick, mature dental plaque biofilm. Plaque is necessary for the initiation of proximal, smooth surface, and root surface caries.
8-16 mg F/Kg body weight - This range represents the estimated maximum safe acute dose of fluoride for adults without significant risk of toxicity The other options exceed safe thresholds: 16-32 mg/kg may cause mild toxicity, 30-64 mg/kg approaches lethal levels (LD50 ~32-64 mg/kg in acute exposure),
The Snyder test is a microbiological test used to detect the presence of specific bacteria associated with dental caries, primarily Streptococcus mutans. It involves taking a sample of plaque, adding a sugar solution, and observing for the formation of acid that indicates bacterial activity and the potential for tooth decay. It is not used to detect fungal growth on skin or determine the pH of crevicular fluid.
MCQ