Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
3179604 | Tanta Dental Journal | 2015 | 6 Pages |
ObjectivesThe aim of this study was to evaluate the efficacy of removal of different sealers using ProTaper Retreatment System applying different solvents.MethodsRoot canals in 135 single-rooted teeth were instrumented and obturated with gutta-percha using one of the following sealers (n = 45): group A; MTA Fillapex sealer, group B; AH Plus and group C; Endofill sealer. After one month, the root canals were retreated with a rotary retreatment system; ProTaper Universal Retreatment kit using different solvents according to the subgroups: (n = 15) subgroup D; DMS IV, subgroup E; EndoSolv R and subgroup N; no solvent was used. Roots were split longitudinally, canals were observed using a stereomicroscope at 20×. The images were subjected to morphometric analysis to assess the amount of remaining root filling material. Statistical analysis was performed by two way ANOVA and Student–Newman Keuls post-hoc test was done for pair-wise comparison.ResultsGroup B showed significantly (P = 0.004) higher values of residual root filling material than groups A & B in case of no-solvent use (subgroup N). During the use of EndoSolv R (subgroup E), no significant difference (P = 0.34) was found between all groups. However, with use of DMS IV (subgroup D), Group B recorded the highest significant value followed by group A then the group C.ConclusionsResin solvent was efficient in removal of resin and MTA based sealers while DMS IV is only beneficial with removal of zinc oxide and eugenol based sealers.