Hello Sir, Looking at the photographs it seems that the tooth are grossly decayed. First you need to get an X-ray done because in every case root canal is not possible and in your case not much tooth structure is remaining. If root canal is not possible then you can get the tooth extracted followed by which you can get an implant or bridge
Next Steps
Visit a dentist at the earliest
Health Tips
Endodontist will be the right person for RCT