Perforation repair and thermafil removal

A 40 years old patient was referred to me to retreat tooth 3.6. The referring dentist had attempted retreatment but the patient was in pain since his intervention. The dentist then suggested to extract the tooth, but the patient did not agree. The X-ray I took when the patient arrived shows a perforation of the pulp chamber floor and the presence of a foreign body in the peridontium. I asked the referring dentist for his pre operative and this is what I got. The dentist retreated the tooth to treat the existing periapical lesion. Comparing the two X-rays it is clear that a wrong opening of the access cavity led the dentist to struggle finding the mesial root canal openings,…