My root canal was short filled and i have a lot of pain on the tooth.pain is similar to a socking sensation when teeth touch. what to do?

Failing RCT: If there is a qualified dentist preferably an Endodontist (specializes in Root Canal Therapy) get a consult to see if the RCT can be redone properly with a good prognosis. Otherwise you will probably need to get the tooth extracted.

Endodontist.: See a root canal specialist. Find a board certified endodontist and make an appointment.

Retreatment: Consult with a specialist to have the tooth retreated.

Report: Report your symptoms to your treating Dentist. Referral to a specialist Endodontist may be in order.