2020 Volume 63 Issue 1 Pages 90-95
Purpose: We report a case of non-surgical root canal treatment of chronic apical abscesses (chronic apical periodontitis with a sinus tract) in the maxillary right first and second molars, and the one-year follow-up of this case after filling the root canals with bioactive glass (BG) -based root canal sealer using the single-cone obturation technique.
Case: A 42-year-old male with a persistent sinus tract in the gingiva of the maxillary right molar region was referred to us from a dental clinic. By a clinical intraoral inspection, intraoral radiography, and dental cone beam computed tomography (CBCT), the maxillary first and second molars were diagnosed with chronic apical abscesses. Periapical lesions of both molars were fused, and buccal root apices of both molars were included in the fused lesion. After non-surgical retreatment, the root canals of both molars were filled with a BG-based root canal sealer using the single-cone obturation technique. Adequate root canal filling was confirmed by intraoral radiography. A comparison of CBCT images at pretreatment and one year after treatment showed that the fused periapical lesion of both molars had almost disappeared. Furthermore, a thickening of the maxillary sinus mucosa close to both maxillary molars had significantly improved and the area appeared normal.
Conclusion: The successful non-surgical root canal retreatment in the present case suggests that obturation with BG-based root canal sealer using the single-cone technique is a viable option.
