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Sealing efficacy of system B versus Thermafil and Guttacore obturation techniques evidenced by scintigraphic analysis.
Journal of Clinical and Experimental Dentistry 2017 January
BACKGROUND: This study compared root canal sealing ability, filled by Continuous Wave compaction and two carrier-based obturation systems, using the nuclear medicine approach.
MATERIAL AND METHODS: Fifty-five single-rooted extracted teeth were selected. The crowns were sectioned and each tooth was instrumented using rotary Protaper® Universal system. The roots were divided into 3 experimental groups and two control groups. Forty-five root canals were filled, using Continuous Wave, GuttaCore or Thermafil system and TopSeal sealer. Ten teeth were used as control. On the 7th days the apices were submersed in a solution of sodium pertechnetate 99mTc for 3 hours and the radioactivity was counted.
RESULTS: Although apical leakage in the Continuous Wave group was lower compared with GuttaCore and Thermafil groups, there was no statistical difference ( p >0.05).
CONCLUSIONS: System B, GuttaCore and Thermafil techniques showed a similar sealing effect. Key words: Continuous wave compaction, Gutta percha core-carrier, leakage, nuclear medicine.
MATERIAL AND METHODS: Fifty-five single-rooted extracted teeth were selected. The crowns were sectioned and each tooth was instrumented using rotary Protaper® Universal system. The roots were divided into 3 experimental groups and two control groups. Forty-five root canals were filled, using Continuous Wave, GuttaCore or Thermafil system and TopSeal sealer. Ten teeth were used as control. On the 7th days the apices were submersed in a solution of sodium pertechnetate 99mTc for 3 hours and the radioactivity was counted.
RESULTS: Although apical leakage in the Continuous Wave group was lower compared with GuttaCore and Thermafil groups, there was no statistical difference ( p >0.05).
CONCLUSIONS: System B, GuttaCore and Thermafil techniques showed a similar sealing effect. Key words: Continuous wave compaction, Gutta percha core-carrier, leakage, nuclear medicine.
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