FREE NDAEB Preventive Dental Procedures Questions and Answers

Question 1

A 6-year-old child with a high caries risk has completed a dental cleaning. Which of the following professionally applied topical fluoride treatments is most appropriate for this patient?

Accepted Answer

5% Neutral Sodium Fluoride (NaF) varnish painted directly onto the teeth.

Answer

1.23% Acidulated Phosphate Fluoride (APF) foam applied in trays for four minutes.

Answer

A prescription for systemic fluoride supplement drops to be taken daily.

Answer

An over-the-counter 0.2% Sodium Fluoride (NaF) rinse to be used at home.

Question 2

The primary chemical monomer that forms the resin matrix of most modern pit and fissure sealants is known as:

Accepted Answer

Bisphenol A-glycidyl methacrylate (BIS-GMA)

Answer

Glass Ionomer Cement

Answer

Zinc Oxide-Eugenol

Answer

Calcium Hydroxide

Question 3

Which of the following clinical findings represents a significant contraindication for performing coronal polishing?

Accepted Answer

The presence of severe dentin hypersensitivity and enamel erosion.

Answer

The presence of light, extrinsic coffee and tea stains.

Answer

A patient scheduled for orthodontic band placement.

Answer

A patient with healthy gingiva and no notable stain.

Question 4

A dental assistant is providing oral hygiene instruction to a patient with new orthodontic appliances. For cleaning the difficult-to-reach areas around brackets and under the archwire, which of the following aids is most essential to recommend?

Accepted Answer

An interproximal brush (proxabrush).

Answer

A hard-bristled toothbrush.

Answer

Standard mint-flavored dental floss.

Answer

A whitening toothpaste.

Question 5

The dental caries process is initiated when cariogenic bacteria in plaque metabolize a specific substrate and produce acid as a byproduct. What is this substrate?

Accepted Answer

Fermentable carbohydrates

Answer

Proteins

Answer

Dietary fats

Answer

Vitamins and minerals

Question 6

Which of the following is an example of a preventive measure that provides systemic fluoride benefits for developing teeth?

Accepted Answer

Consumption of fluoridated community water.

Answer

Professionally applied fluoride varnish.

Answer

Using a high-fluoride prescription toothpaste.

Answer

Rinsing with an over-the-counter fluoride mouthwash.