Author(s): OrdinolaZapata R, Bramante CM, Bernardineli N, Graeff MS, Garcia RB,
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Abstract OBJECTIVE: The aim of this study was to evaluate the percentage of sealer penetration in root canals filled with the Thermafil or RealSeal-1 systems analyzed by confocal laser scanning microscopy (CLSM). STUDY DESIGN: Twenty canals in 10 mesial roots of mandibular molars were cleaned and shaped using ProTaper and ProFile instruments to a size 35 and .04 taper at the apex and filled using RealSeal-1 or Thermafil systems in the mesial canal of each root. Horizontal sections were made at the 3 and 5 mm levels from the apex, and the percentage of sealer penetration in the root canal walls was analyzed using CLSM. RESULTS: Thin layers of sealer (2-30 microm) and sealer tags into dentinal tubules were found in the root canal walls in a high percentage using both techniques at both evaluated levels, with no statistical differences between the techniques (Student t test: P > .05). CONCLUSION: The percentage of sealer penetration in the root canal walls was similar using both thermoplastic carriers based systems.
This article was published in Oral Surg Oral Med Oral Pathol Oral Radiol Endod
and referenced in Dentistry