Quiz: Process of Tooth Decay (Grade 6-7)

What do bacteria around the teeth break down to produce acid?

• Proteins

• Sugars

• Fats

• Minerals

What does the acid produced by bacteria do to the tooth?

• Strengthens the enamel

• Corrodes the enamel

• Whiten the enamel

• Thickens the enamel

What is the result of enamel corrosion?

• Healthy teeth

• Holes or cavities

• Strengthened gums

• Whiter teeth

What happens when food particles get trapped inside cavities?

• Healing

• Accelerated decay

• Growth of new enamel

• Strengthening of enamel

Which layer of the tooth can bacteria reach after corroding the enamel?

• Pulp

• Dentine

• Gum

• Cement

What are the bacteria byproducts that lead to tooth decay?

• Minerals

• Acid

• Water

• Calcium

What layer of the tooth contains blood vessels and nerve cells?

• Enamel

• Dentine

• Pulp

• Cement

What sensation may be experienced when decay reaches the pulp?

• No sensation

• Pain

• Tingling

• Itching

What could happen if a decayed tooth remains untreated?

• The cavity heals itself

• Infection and pain

• Tooth becomes stronger

• Teeth become whiter

Which of the following accelerates tooth decay?

• Proper oral hygiene

• Bacteria trapped with food

• Brushing twice daily

• Healthy diet