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Oral Cavity Flora and Dental Plaque Formation Quiz

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Oral Cavity Flora and Dental Plaque Formation Quiz

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Questions and Answers

What is the main cause of cavities in teeth according to the text?

Enamel sensitivity to low pH

Production of lactic acid (correct)

Formation of biofilm

Destruction of dentin

Which of the following is responsible for the polymerization of glucose to form polysaccharides in dental plaque?

Fructose fermentation

Glucosyl-transferase enzyme (correct)

Cleavage of sucrose

Specific binding of streptococci to glycoproteins

Why is fluoroapatite preferred over hydroxyapatite in preventing dental caries?

Hydroxyapatite causes enamel erosion

Fluoroapatite is more resistant to sugar

Hydroxyapatite attracts more bacteria

Fluoroapatite is less sensitive to low pH (correct)

What is the role of sucrose in biofilm formation on teeth surfaces?

Promotes binding of streptococci to proteins Signup and view all the answers

How do proteolytic enzymes contribute to dental caries development?

Destroy dentin Signup and view all the answers

What was an ancient Chinese procedure for preventing dental caries according to the text?

Use human urine as mouthwash Signup and view all the answers

What is the main cause of endocarditis?

Colonization of heart valves by oral streptococci Signup and view all the answers

How is periodontitis different from gingivitis?

Periodontitis causes easy bleeding of the gums, while gingivitis involves the destruction of bone and tissue supporting teeth. Signup and view all the answers

What is the primary function of the endocardium?

To provide a smooth surface covering the heart valves Signup and view all the answers

Why are Lancefield serogroups important in serological classification?

To classify Streptococci based on antigen differences in cell wall carbohydrates Signup and view all the answers

How can endocarditis be prevented according to the text?

Regular dental check-ups and cleanings Signup and view all the answers

What is the purpose of the Serological Latex Agglutination Test?

To detect Lancefield antigens through clumping reactions Signup and view all the answers