Bond strength of different endodontic sealers to dentin: push-out test
OBJECTIVE: The aim of this in vitro study was to evaluate the bond strength of different root canal sealers to dentin. MATERIAL AND METHODS: Forty extracted single-rooted human teeth were examined and the coronal and middle thirds of the canals were prepared with a 1.50 mm post drill (FibreKor Post...
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| Format: | Article |
| Language: | English |
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University of São Paulo
2011-12-01
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| Series: | Journal of Applied Oral Science |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000600017 |
| _version_ | 1828916171330551808 |
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| author | João Vicente Baroni Barbizam Martin Trope Mario Tanomaru-Filho Erica Cappelletto Nogueira Teixeira Fabricio Batista Teixeira |
| author_facet | João Vicente Baroni Barbizam Martin Trope Mario Tanomaru-Filho Erica Cappelletto Nogueira Teixeira Fabricio Batista Teixeira |
| author_sort | João Vicente Baroni Barbizam |
| collection | DOAJ |
| description | OBJECTIVE: The aim of this in vitro study was to evaluate the bond strength of different root canal sealers to dentin. MATERIAL AND METHODS: Forty extracted single-rooted human teeth were examined and the coronal and middle thirds of the canals were prepared with a 1.50 mm post drill (FibreKor Post System, Pentron). The teeth were allocated in two experimental groups, irrigated with 2.5% NaOCl+17% EDTA or saline solution (control group) and instrumented using Race rotary files (FKG) to a size #40 at the working length. Then, the groups were divided into four subgroups and filled with Epiphany sealer (Group 1), EndoREZ (Group 2), AH26 (Group 3) and Grossman's Sealer (Group 4). After 2 weeks of storage in 100% humidity at 37ºC, all teeth were sectioned transversally into 2-mm-thick discs. Push-out tests were performed at a cross-head speed of 1 mm/min using a universal testing machine. The maximum load at failure was recorded and expressed in MPa. RESULTS: Means (±SD) in root canals irrigated with 2.5% NaOCl and 17% EDTA were: G1 (21.6±6.0), G2 (15.2±3.7), G3 (14.6±4.5) and G4 (11.7±4.1).Two-way ANOVA and Tukey's test showed the highest bond strength for the Epiphany's group (p< 0.01) when compared to the other tested sealers. Saline solution decreased the values of bond-strength (p<0.05) for all sealers. CONCLUSION: Epiphany sealer presented higher bond strength values to dentin in both irrigating protocols, and the use of 2.5% NaOCl and 17% EDTA increased the bond strength values for all sealers. |
| first_indexed | 2024-12-13T20:27:38Z |
| format | Article |
| id | doaj.art-8798fede8489428ca2520ae263887b1b |
| institution | Directory Open Access Journal |
| issn | 1678-7757 1678-7765 |
| language | English |
| last_indexed | 2024-12-13T20:27:38Z |
| publishDate | 2011-12-01 |
| publisher | University of São Paulo |
| record_format | Article |
| series | Journal of Applied Oral Science |
| spelling | doaj.art-8798fede8489428ca2520ae263887b1b2022-12-21T23:32:31ZengUniversity of São PauloJournal of Applied Oral Science1678-77571678-77652011-12-0119664464710.1590/S1678-77572011000600017Bond strength of different endodontic sealers to dentin: push-out testJoão Vicente Baroni BarbizamMartin TropeMario Tanomaru-FilhoErica Cappelletto Nogueira TeixeiraFabricio Batista TeixeiraOBJECTIVE: The aim of this in vitro study was to evaluate the bond strength of different root canal sealers to dentin. MATERIAL AND METHODS: Forty extracted single-rooted human teeth were examined and the coronal and middle thirds of the canals were prepared with a 1.50 mm post drill (FibreKor Post System, Pentron). The teeth were allocated in two experimental groups, irrigated with 2.5% NaOCl+17% EDTA or saline solution (control group) and instrumented using Race rotary files (FKG) to a size #40 at the working length. Then, the groups were divided into four subgroups and filled with Epiphany sealer (Group 1), EndoREZ (Group 2), AH26 (Group 3) and Grossman's Sealer (Group 4). After 2 weeks of storage in 100% humidity at 37ºC, all teeth were sectioned transversally into 2-mm-thick discs. Push-out tests were performed at a cross-head speed of 1 mm/min using a universal testing machine. The maximum load at failure was recorded and expressed in MPa. RESULTS: Means (±SD) in root canals irrigated with 2.5% NaOCl and 17% EDTA were: G1 (21.6±6.0), G2 (15.2±3.7), G3 (14.6±4.5) and G4 (11.7±4.1).Two-way ANOVA and Tukey's test showed the highest bond strength for the Epiphany's group (p< 0.01) when compared to the other tested sealers. Saline solution decreased the values of bond-strength (p<0.05) for all sealers. CONCLUSION: Epiphany sealer presented higher bond strength values to dentin in both irrigating protocols, and the use of 2.5% NaOCl and 17% EDTA increased the bond strength values for all sealers.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000600017Root canal obturationRoot canal filling materialPush-out |
| spellingShingle | João Vicente Baroni Barbizam Martin Trope Mario Tanomaru-Filho Erica Cappelletto Nogueira Teixeira Fabricio Batista Teixeira Bond strength of different endodontic sealers to dentin: push-out test Journal of Applied Oral Science Root canal obturation Root canal filling material Push-out |
| title | Bond strength of different endodontic sealers to dentin: push-out test |
| title_full | Bond strength of different endodontic sealers to dentin: push-out test |
| title_fullStr | Bond strength of different endodontic sealers to dentin: push-out test |
| title_full_unstemmed | Bond strength of different endodontic sealers to dentin: push-out test |
| title_short | Bond strength of different endodontic sealers to dentin: push-out test |
| title_sort | bond strength of different endodontic sealers to dentin push out test |
| topic | Root canal obturation Root canal filling material Push-out |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000600017 |
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