lab 4 quiz

Which of the following is NOT one of the three main theories of dental caries etiology?

• Acidogenic theory

• Proteolytic theory

• Proteolysis-chelation theory

• Enzymatic theory

According to the proteolysis-chelation theory, what initiates the attack on enamel?

• Acid from carbohydrate fermentation

• Keratinolytic microorganisms breaking down proteins

• Mechanical brushing

• Salivary enzymes

What is the main characteristic of acute (rampant) caries?

• Slow progression and late pulp involvement

• Sudden, rapid destruction of teeth with early pulp involvement

• Only affects root surfaces

• Only occurs in adults

Which of the following is classified as a smooth-surface caries?

• Pit-and-fissure caries

• Proximal and cervical caries

• Root caries

• Enamel caries

According to histology, which type of caries affects the outermost layer of the tooth?

• Enamel caries

• Dentinal caries

• Cemental caries

• Root caries

Which of the following is NOT a chronological type of dental caries?

• Early childhood caries

• Adolescent caries

• Senile caries

• Adult onset caries

According to the material, which tooth surface is most susceptible to caries?

• Lingual

• Buccal

• Occlusal

• Mesial

Why are maxillary teeth more susceptible to caries than mandibular teeth?

• They are larger in size

• They are closer to the tongue

• Saliva tends to drain from upper teeth and collect around lower teeth

• They have more enamel

Which of the following teeth has the lowest susceptibility to caries?

• Upper first bicuspid

• Lower second bicuspid

• Lower central and lateral incisor

• Upper second bicuspid

If a dentist observes visual changes in tooth surface texture or color, what might they be diagnosing?

• Tooth eruption

• Dental caries

• Tooth fracture

• Gum disease