Previously treated with asymptomatic apical periodontitis. The patient presented after her dentist saw a lesion during routine prophy. #31 had endo completed roughly 5 years earlier. The tooth is clinically asymptomatic.
PAX and CBCT scan show large apical lesion with buccal plate perforation. Scan also shows an untreated ML canal internally. All canals were treated to full length and new obturants were sealed in composite to prevent recontamination. The patient is scheduled for follow-up appointment to check healing.