Publication: Retrograde seal in ultrasonically prepared canals
Issued Date
2000-01-01
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ISSN
00992399
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2-s2.0-0034252068
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Endodontics. Vol.26, No.8 (2000), 444-446
Suggested Citation
Supachai Sutimuntanakul, Wichai Worayoskowit, Chutima Mangkornkarn Retrograde seal in ultrasonically prepared canals. Journal of Endodontics. Vol.26, No.8 (2000), 444-446. doi:10.1097/00004770-200008000-00003 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/25924
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Title
Retrograde seal in ultrasonically prepared canals
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Abstract
The sealing ability of various retrofilling materials was compared. The root canals of 85 single-rooted teeth were cleansed and obturated with gutta-percha without sealer using lateral condensation. The apical 3 mm of the roots were resected and divided into positive control, negative control, and five experimental groups. The experimental teeth received root-end cavity preparation to 3 mm depth using an ultrasonic retroprep tip. The retrocavities were dried and divided into five groups to receive the following materials: amalgam with varnish, amalgam with Clearfil Liner Bond II, thermoplasticized gutta-percha (TGP) with sealer, Ketac-fil, and Super-EBA. After immersion in India ink for 7 days, the roots were demineralized, cleared, and evaluated for dye leakage under a stereomicroscope. Statistical analysis showed that Super-EBA, Ketacfil, and TGP with sealer demonstrated less leakage than amalgam with varnish and amalgam with Clearfil Liner Bond II (p < 0.05). Super-EBA also leaked significantly less than Ketac-fil or TGP sealer (p < 0.05). No significant difference was found between Ketac-fil and TGP or between the two groups filled with amalgam (p > 0.05). Copyright © 2000 by The American Association of Endodontists.