I started root canal treatment on an upper first molar, but I cannot dry the canal and the cavity keeps filling with clear discharge. The patient also developed nasal discharge that evening. I referred the patient to an ENT specialist and they are taking antibiotics. I do not know how to proceed. I considered filling with an MTA-based sealer, but which sealer should I use? I would be grateful for your help.

Question

Doç. Dr. İsmail Davut Çapar · Accepted Answer

This can happen when the roots of upper molars communicate with the sinus. It may be resolved by proceeding in combination with sinusitis treatment. If the apex is open, take care to prevent extrusion during filling; a powder-liquid MTA can preferably be used. Irrigant may enter the sinus during the procedure. To prevent this, irrigation can be performed with micro-suction.