1. your treatment depends upon severity of tooth decay, if it has mobility then its batter to go for the extraction.
  2. if your tooth does not have mobility then we can save it, by root canal treatment but it depends on how much decay is there, abcess formation, and age.
  3. but most of the time we are able to save your tooth by doing root canal treatment , caping, and by post and core methods.
  4. costing of these treatments veries from clinic to clinic, and according to severity of decay.