Premedication on Post-endodontic Pain

"History of presenting illness will be recorded and vitality testing will be done in addition to pre-operative radiograph.~Patient will read and sign the consent form. Pre-operative pain score will be recorded using visual analogue scale. The patient will take the preoperative medication 1 hour prior to the procedure.~The patient will receive 1 cartridge of LA with inferior alveolar nerve block (2% lidocaine 1:80000) and a rubber dam will be used for isolation.~Access cavity will be prepared and working length will be determined. Cleaning and shaping of the root canal system will be performed followed by obturation using a standardized protocol followed by final coronal restoration.~Postoperative pain score will be recorded at the 6, 12, 24, and 48 hours using visual analogue pain scale."