Tooth-related criteria
abnormal tooth mobility, calcification, pain, pulp stones, fistulous or sinus tract
ROOT RESORPTION, PULP NECROSIS, PULP STONES, APICAL PERIODONTITIS, CHRONIC PAIN

Gingival swelling, fistulous or sinus tract, abnormal tooth mobility, and pain on biting or percussion are all clinical signs of pulp necrosis or apical periodontitis.History of chronic pain.Radiographic evidence of periapical radiolucency, internal or external root resorption, and/or pulp stones or calcification.Previous endodontic treatment (e.g., pulpotomy or pulpectomy) [Preoperative analgesic intake within the last 12 h [