Regular dental check-ups and cleanups can prevent a number of dental problems. A good oral hygiene regime and healthy food habits go a long way in preventing decay and gum disease.
Children should be introduced to brushing as soon as teeth appear in their mouth and oral hygiene should be actively supervised till the age of 6 years.
Sealants are dental materials used to fill up deep grooves in teeth to prevent decay setting in.Generally its done for kids but it may be recommended for some adults as well.
Prevention in most definitely better than cure!