Q114
General ScienceChemistry
To protect tooth decay we are advised to brush our teeth regularly. The nature of the toothpaste commonly used is
- a.acidic
- b.neutral
- c.basic
- d.corrosive
Answer: (C) basic
Toothpaste is formulated to be mildly basic (alkaline) so that it can neutralise the acids produced by bacteria feeding on food residues in the mouth — acids that would otherwise erode tooth enamel and cause decay.