NDAEB Preventive Procedures and Nutrition Questions and Answers

Question 1

A mother expresses concern about her 4-year-old child's cavity risk, stating the child frequently snacks on crackers and sips fruit juice throughout the day.
What is the most crucial nutritional advice a dental assistant should provide?

Accepted Answer

Advise limiting snacking and juice consumption to mealtimes only.

Answer

Recommend brushing the child's teeth immediately after every snack.

Answer

Suggest switching from fruit juice to milk for all-day sipping.

Answer

Tell her to replace the crackers with fresh fruit for snacking.

Question 2

Which of the following is the primary mechanism by which professionally applied topical fluoride helps to prevent dental caries?

Accepted Answer

It inhibits demineralization and enhances the remineralization of enamel.

Answer

It kills all bacteria present in the dental plaque.

Answer

It creates a thin, physical barrier over the enamel surface.

Answer

It is absorbed systemically to strengthen unerupted, developing teeth.

Question 3

When applying a pit and fissure sealant, what is the most critical step for ensuring successful long-term retention after the tooth has been etched and rinsed?

Accepted Answer

Maintaining a completely dry, contamination-free surface until the sealant is cured.

Answer

Curing the etched surface with a light for 10 seconds before sealant placement.

Answer

Applying a thin layer of fluoride varnish to the etched surface.

Answer

Polishing the tooth with prophy paste to remove any remaining debris.

Question 4

A dental assistant is providing oral hygiene instructions to an adult patient with signs of mild gingivitis. The Bass method of toothbrushing is specifically recommended because it is most effective for:

Accepted Answer

Removing plaque and debris from the gingival sulcus.

Answer

Whitening the facial surfaces of the anterior teeth.

Answer

Massaging the keratinized tissue of the hard palate.

Answer

Dislodging impacted food from the occlusal pits and fissures.

Question 5

A patient's health history reveals a highly restrictive diet, and clinically, they present with inflamed, bleeding gums and poor tissue healing. A deficiency in which vitamin is most directly associated with these oral manifestations, which can lead to scurvy in severe cases?

Accepted Answer

Vitamin C (Ascorbic Acid)

Answer

Vitamin D

Answer

Vitamin B12

Answer

Vitamin K

Question 6

Which of the following food items is considered the MOST cariogenic?

Accepted Answer

A small, sticky caramel candy eaten slowly over 20 minutes.

Answer

A large glass of milk drunk quickly with a meal.

Answer

A handful of salted peanuts eaten as a snack.

Answer

A slice of cheddar cheese eaten after a meal.

A mother expresses concern about her 4-year-old child's cavity risk, stating the child frequently snacks on crackers and sips fruit juice throughout the day.What is the most crucial nutritional advice a dental assistant should provide?

A mother expresses concern about her 4-year-old child's cavity risk, stating the child frequently snacks on crackers and sips fruit juice throughout the day.
What is the most crucial nutritional advice a dental assistant should provide?