Question

Heshna and Keerthi are friends. Keerthi’s teeth are white without caries, but Heshna has teeth with caries. Why? How is it formed?

Answer 1

1. Caries are caused by the action of acids on the enamel surface.
2. The acid is produced when sugar in foods or drinks reacts with bacteria present on the tooth surface.
3. Heshna has not cleaned her teeth well after sipping sugary drinks and snacking.
4. She has to brush after meals and before bed.