Endodontic treatment will be performed in maxillary anterior teeth with necrotic pulp and periapical periodontitis. Local anaesthesia will be provided (2% Novocaine with 1:80,000 epinephrine), isolation with rubber dam and standard access cavity preparation will be done.Using 2.5 % sodium hypochlorite, canal negotiation will be done. Foraminal enlargement will be achieved with rotary files in foraminal enlargement group after determining working length. Coronal flaring with # 2 and #3 Gates-Glidden drills will be done. The canals will be obturated with gutta-percha and epoxy resin sealer. The treatments will be carried out in single-visit.

In the control group, no foraminal enlargement will be performed.

After determining the working length, a rotary file will be inserted 1 mm beyond the WL and the apical foramen will be enlarged.

The severity of pain in 12 h, 24 h, and 2, 3, 4, and 5 days according to the VAS: no pain (0-4 mm), mild pain (5-44 mm), moderate pain (45-74 mm), and severe pain (75-100 mm)

The patients were asked to take an analgesic in the 5 days of time frame.