I have cavities on two molars tooth since I was 6 years old today I am 15 years old. Before 6 years my cavity becomes worst and tooths decayed fully and I consult to a dentist the dentist gave me some medicines and my pain become less after 2 months again I have pain then the dentist again gave me medicines from that day I have never have any pain on my decayed tooth and these tooths were milk tooths but 5 years ago these milk tooths remove and I have got permanent tooths but these two new permanent tooth also got cavities and the cavities which were black in colour now become brown in colours and tooths are approximately decayed but 1 year ago I have small cavity on my other molar tooth which is black in colour and this tooth is milk tooth but till now I do not have any pain in these tooths except the 6 year old pain which I have already discussed except the new cavity in tooth in which I have little pain when crushing hard things with this tooth and sometimes eating chapati also otherwise I do not have any pain.