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      Sealing ability of One-Up Bond and MTA with and without a secondary seal as furcation perforation repair materials.

      Journal of endodontics
      Aluminum Compounds, therapeutic use, Calcium Compounds, Combined Modality Therapy, Dental Leakage, therapy, Dentin-Bonding Agents, Drug Combinations, Humans, In Vitro Techniques, Methacrylates, Molar, Oxides, Pit and Fissure Sealants, Silicates, Tooth Root, injuries

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          This study investigated the ability of One-Up Bond alone and mineral trioxide aggregate (MTA), with and without a secondary seal of One-Up Bond or SuperEBA to seal saucer-shaped perforation defects in human molars. Cusps were removed, roots were amputated, and endodontic therapy completed on 40 extracted teeth. A cylindrical hole was made in each tooth from the furcation area to the chamber, into which a section of steel tubing was cemented. Intracoronal saucer-shaped defects were created over the perforation. The teeth were restored with MTA, One-Up Bond, or MTA with a secondary seal of One-Up Bond or SuperEBA. The integrity of the seal was evaluated by fluid filtration. MTA alone leaked significantly more than One-Up Bond or MTA with either secondary seal at 24 h. At 1 month, MTA, MTA plus One-Up Bond, and One-Up Bond alone were equivalent.

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