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Microleakage evaluation of intraorifice sealing materials in endodontically treated teeth
Tetis S Sauáia1, Brenda P F A Gomes, Ericka T Pinheiro
1Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas-UNICAMP, Piracicaba, SP, Brazil.
Objective:
Evaluate intraorifice sealing materials Cavit, Vitremer, and Flow-It for the prevention of coronal microleakage in root-canal treatment.
Study Design:
Root-canal treatment was performed on 80 extracted human molars. Three millimeters of coronal gutta-percha was removed from the coronal aspect of the root canal and replaced with one of the 3 filling materials. After thermocycling (5 degrees C to 55 degrees C) and 5 days of immersion in dye, the teeth were cleared for stereomicroscope evaluation for evidence of dye penetration into the sealing material and along canal walls.
Results:
All groups showed dye penetration into the root canal. Cavit sealed significantly better than the other groups (P < .01), preventing the coronal leakage in 90% of the specimens. Flow-It exhibited the highest leakage (65% of specimens) and did not differ significantly from the Vitremer group, which showed dye penetration in 55% of specimens.
Conclusion:
Cavit sealed significantly better than Vitremer and Flow-It when used as intraorifice filling materials.