Examination: 47 (lower right 2nd molar) — deep carious lesion, periapical tenderness, sinus tract present. Percussion: positive. Vitality: non-vital.
X-ray: OPG: periapical lucency 47, interradicular bone loss
Diagnosis: Chronic apical periodontitis — tooth 47
Pulp extirpation (root canal treatment) × 3 visits. Access cavity opened today. Biomechanical preparation scheduled next visit.
Parent counselled re: oral hygiene. Fluoride varnish applied to adjacent teeth.