DANB CDA Preventive Dentistry

Question 1

What is the primary purpose of fluoride in dental care?

Accepted Answer

To strengthen tooth enamel and make it more resistant to decay

Answer

To whiten teeth

Answer

To reduce gum inflammation

Answer

To kill bacteria in the mouth

Question 2

What is dental plaque?

Accepted Answer

A sticky biofilm of bacteria that forms on tooth surfaces

Answer

Hardened calcium deposits on teeth

Answer

Food particles stuck between teeth

Answer

A type of tooth stain

Question 3

At what age should a child first visit a dentist according to the AAPD?

Accepted Answer

By age 1 or within 6 months of the first tooth erupting

Answer

At age 3

Answer

When all primary teeth have erupted

Answer

At age 6 when permanent teeth begin

Question 4

What is the recommended technique for brushing teeth?

Accepted Answer

Modified Bass technique with bristles angled at 45 degrees toward the gumline

Answer

Horizontal scrubbing motion across tooth surfaces

Answer

Circular motion only on biting surfaces

Answer

Vertical strokes from gum to tooth edge

Question 5

What is the main purpose of dental sealants?

Accepted Answer

To protect pit and fissure surfaces of teeth from decay

Answer

To replace damaged enamel

Answer

To straighten misaligned teeth

Answer

To treat existing cavities

Question 6

What dietary factor most contributes to dental caries?

Accepted Answer

Frequent consumption of fermentable carbohydrates

Answer

High protein intake

Answer

Excessive water consumption

Answer

Vitamin D deficiency