Tooth Decay

Q. Which one of the following acid leads to tooth decay?

1. Acetic acid
2. Tartaric acid
3. Formic acid
4. Lactic acid

Q. We brush our teeth with toothpaste that is basic in nature. Explain why?

Q.

To prevent tooth decay we are advised to brush our teeth regularly. The nature of the toothpaste commonly used is-

1. Acidic
2. Neutral
3. Basic
4. Corrosive

Q.

High dose of _____ may be corrosive to the gastro-intestinal tract causing severe abdominal pain, vomiting, diarrhea, collapse and in some cases death.

1. Sodium Carbonate

2. None of the choices

3. Sodium chloride

4. Magnesium hydroxide

Q. Visual indicators detect acids and bases by change in colour.

1. False
2. True

Q. The first set of teeth which are lost between the age of 6 -12 years are termed as the ___.

1. milk teeth
2. permanent teeth
3. soft teeth
4. wisdom teeth

Q. Match the teeth with their roles.

1. Crushing food
2. Grinding food
3. Cutting food
4. Tearing food

Q. Visual indicators detect acids and bases by change in colour.

1. False
2. True

Q.

To prevent tooth decay we are advised to brush our teeth regularly. The nature of the toothpaste commonly used is-

1. Acidic
2. Neutral
3. Basic
4. Corrosive