Do i need to get a crown after root canal treatment?

Yes, In most cases : In most cases treatment for a tooth( premolar or molar ) that needs a root canal is to have the root canal an then have a crown placed. You will need to ask your dentist what the best restoration should be for the tooth that had a root canal. Also you should know all poss complication with out having a crown after root canal treatment.

Crown w Root Canal: Crown placement after endodontic treatment is usually very important for posterior teeth (molars and premolars). After the root canal, the tooth becomes more brittle w time and fractures can occur. Front (anterior) teeth can sometimes avoid crowns; depends on the situation. For all teeth, the amount of tooth structure damaged and missing is an important factor for the need for crown coverage.