Dental Caries & Studies

Dental Caries & Studies

University

15 Qs

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Dental Caries & Studies

Dental Caries & Studies

Assessment

Quiz

Health Sciences

University

Practice Problem

Easy

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best defines dental caries?

A reversible lesion affecting the hard tissues of the teeth

A dynamic process involving demineralization and remineralization of the tooth surface

The erosion of enamel due to mechanical abrasion

Inflammation of the periodontal ligament

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which equation accurately represents the balance between demineralization and remineralization in dental caries?

(pH < 5.5) → Ca²⁺ + PO₄³⁻ → Hydroxyapatite

Demineralization Rate = Acidogenic bacteria × Sugar concentration

Demineralization Rate = Frequency of sugar exposure × Enamel porosity

Remineralization Rate = Fluoride + Ca²⁺/PO₄³⁻ availability

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In Stephan's curve, what is the primary factor responsible for the critical pH drop?

Salivary flow rate

Salivary buffering capacity

Sugar intake and bacterial metabolism

Oral temperature

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The critical pH for demineralization of enamel is considered to be approximately:

4.5

5.5

6.5

7.5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of sugar is most cariogenic as per controlled dietary studies?

Glucose

Lactose

Fructose

Sucrose

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to Stephan’s curve, what duration is typically required for pH to return to normal after a cariogenic challenge?

5 minutes

20 minutes

40 minutes

60 minutes

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In controlled dietary studies, which of the following factors showed a direct correlation with caries activity?

Total daily caloric intake

Daily protein consumption

Frequency of sugar consumption

Intake of dietary fiber

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