Effect of intentional extrusion of non-setting calcium hydroxide in treatment of teeth with intraoral draining sinus

Calcium hydroxide is one of the most effective, biocompatible, alkaline substance that has been in use by endodontists around the world since almost a century. It is also considered as the material of choice by many clinicians. This case series of six cases (5 males and 1 female aging 32 to 66 years), describes a successful management of periapical lesions with intraoral draining sinus by intentionally extruding premixed non setting paste of calcium hydroxide. The patients were reviewed after 1 week of application and the canals were obturated after 2 weeks followed by 1 year follow up. The presented case reports revealed almost complete healing of the sinus tract within first 2 weeks of application of calcium hydroxide and at 1 year follow up, it was observed that the peri-apical lesion had disappeared radiographically and no recurrence of draining sinus had been reported. The extrusion of calcium hydroxide turned out to be a boon to the cases and had no detrimental effect.