Why should I fill cavities that do not have pain yet?
Dental decay is a slowly progressing disease and usually start to finish in the general population; it can take about 6 months to three years to go from early decay on the surface of the tooth to a large cavity that reaches the pulp depending on the oral hygiene care taken by the person. The pulp is the center of the tooth, where the nerves and blood vessels are. The dental bacteria are both aerobic and anaerobic and these bacteria can survive even without oxygen and relentlessly move towards the pulp to access the nutrition of the pulp. Therefore, mostly any tooth with dental decay is likely to encounter pain in course of time once the decay progresses and reaches the pulp.in the initial stages when the decay is restricted to the enamel or dentin most patients hardly have any symptoms except black spots on the teeth or rare sensitivity. Hence tooth decay is a silent disease and it is best to restore teeth at an early stage or prevent decay with sealants etc, rather that encounter pain and more complex and expensive treatments like Root canal or Extraction at a later stage