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Tooth Decay and Cavities

Description: Test your knowledge about Tooth Decay and Cavities.
Number of Questions: 15
Created by:
Tags: oral health dental hygiene tooth decay cavities
Attempted 0/15 Correct 0 Score 0

What is the primary cause of tooth decay?

  1. Bacteria

  2. Sugar

  3. Plaque

  4. Acid


Correct Option: A
Explanation:

Bacteria in the mouth feed on sugar and produce acids that attack tooth enamel, leading to cavities.

What is the role of plaque in tooth decay?

  1. It protects teeth from decay.

  2. It helps remove food particles from teeth.

  3. It contains beneficial bacteria.

  4. It traps food particles and bacteria on teeth.


Correct Option: D
Explanation:

Plaque is a sticky film that forms on teeth and contains bacteria, food particles, and saliva.

Which of the following is a common symptom of tooth decay?

  1. Toothache

  2. Sensitivity to hot or cold foods

  3. Visible holes or pits in teeth

  4. All of the above


Correct Option: D
Explanation:

Tooth decay can cause a variety of symptoms, including toothache, sensitivity to hot or cold foods, and visible holes or pits in teeth.

What is the primary function of fluoride in preventing tooth decay?

  1. It strengthens tooth enamel.

  2. It neutralizes acids produced by bacteria.

  3. It kills bacteria in the mouth.

  4. It helps remove plaque from teeth.


Correct Option: A
Explanation:

Fluoride helps prevent tooth decay by strengthening tooth enamel and making it more resistant to acids.

Which of the following foods is considered to be particularly harmful to teeth?

  1. Fruits and vegetables

  2. Dairy products

  3. Sugary foods and drinks

  4. Whole grains


Correct Option: C
Explanation:

Sugary foods and drinks provide bacteria with the fuel they need to produce acids that attack tooth enamel.

What is the recommended frequency for brushing teeth?

  1. Once a day

  2. Twice a day

  3. Three times a day

  4. Four times a day


Correct Option: B
Explanation:

Brushing teeth twice a day, in the morning and before bed, is generally recommended for maintaining good oral hygiene.

How long should you brush your teeth each time?

  1. 30 seconds

  2. 1 minute

  3. 2 minutes

  4. 3 minutes


Correct Option: C
Explanation:

Brushing teeth for at least 2 minutes each time is recommended to ensure thorough cleaning.

What is the proper technique for brushing teeth?

  1. Scrubbing teeth vigorously

  2. Using a soft-bristled toothbrush

  3. Brushing in a circular motion

  4. All of the above


Correct Option:
Explanation:

Using a soft-bristled toothbrush and brushing in a circular motion helps remove plaque and bacteria without damaging teeth or gums.

What is the recommended frequency for flossing teeth?

  1. Once a week

  2. Twice a week

  3. Once a day

  4. Twice a day


Correct Option: C
Explanation:

Flossing teeth once a day helps remove plaque and bacteria from between teeth, where a toothbrush cannot reach.

What is the role of regular dental checkups in preventing tooth decay?

  1. They help identify and treat cavities early.

  2. They allow dentists to provide preventive care.

  3. They help educate patients about oral hygiene.

  4. All of the above


Correct Option: D
Explanation:

Regular dental checkups help identify and treat cavities early, provide preventive care such as fluoride treatments, and educate patients about proper oral hygiene.

Which of the following is a common complication of untreated tooth decay?

  1. Gum disease

  2. Abscesses

  3. Tooth loss

  4. All of the above


Correct Option: D
Explanation:

Untreated tooth decay can lead to a variety of complications, including gum disease, abscesses, and tooth loss.

What is the primary treatment for tooth decay?

  1. Filling cavities

  2. Root canal treatment

  3. Extraction

  4. All of the above


Correct Option: D
Explanation:

The primary treatment for tooth decay depends on the severity of the decay and may involve filling cavities, root canal treatment, or extraction.

What is the best way to prevent tooth decay?

  1. Brushing and flossing regularly

  2. Limiting sugary foods and drinks

  3. Visiting the dentist regularly

  4. All of the above


Correct Option: D
Explanation:

Preventing tooth decay involves a combination of good oral hygiene practices, such as brushing and flossing regularly, limiting sugary foods and drinks, and visiting the dentist regularly for checkups and preventive care.

What is the role of saliva in preventing tooth decay?

  1. It helps neutralize acids produced by bacteria.

  2. It contains minerals that strengthen tooth enamel.

  3. It helps wash away food particles and bacteria.

  4. All of the above


Correct Option: D
Explanation:

Saliva plays a crucial role in preventing tooth decay by neutralizing acids, strengthening tooth enamel, and washing away food particles and bacteria.

What is the recommended age for children to start brushing their teeth?

  1. As soon as they have teeth

  2. At the age of 2

  3. At the age of 3

  4. At the age of 4


Correct Option: A
Explanation:

Children should start brushing their teeth as soon as they have teeth, even if it's just a few. This helps establish good oral hygiene habits early on.

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