To compare the treatment outcome of non-healing PA lesion when managed by NSRC-ReTx or surgery.
N= 38, (19/group) either RE-TX or surgery, anteriors and premolars
•Re-Tx: under RD isolation, the canals enlarged 2 sizes larger than 1st binding file, placement of Ca(OH)2 for 3 months. Obturation with lateral condensation. 0.5% NaOCl was used.
•Surgery: mucoperiosteal flap was elevated, 2-3 mm was resectioned, 2 mm cavity was prepared using round bur, GIC filling. Suturing.
•After 1 year the treatment outcome assessed according to the criteria of Rud et al.1972: complete healing, incomplete healing (scar tissue), uncertain healing; and, unsatisfactory healing (failure).
Most highlighted Results:
•The success rate for surgery was higher than retreatment, but the difference was not significant.
• No positive correlation was observed between the different healing groups and the size of the apical lesion or the quality of the previous root canal fillings.
For management of non-healing periradicular pathosis after RCT, surgical intervention should be considered as one of the treatment options