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BOND STRENGTH OF HARD CHAIRSIDE RELINE RESINS TO A RAPID POLYMERIZING DENTURE BASE RESIN BEFORE AND AFTER THERMAL CYCLING
PURPOSE: This study assessed the shear bond strength of 4 hard chairside reline resins (Kooliner, Tokuso Rebase Fast, Duraliner II, Ufi Gel Hard) to a rapid polymerizing denture base resin (QC-20) processed using 2 polymerization cycles (A or B), before and after thermal cycling. MATERIALS AND METHO...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Faculdade de Odontologia de Bauru da Universidade de São Paulo
2006
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4327296/ https://www.ncbi.nlm.nih.gov/pubmed/19089244 http://dx.doi.org/10.1590/S1678-77572006000600009 |
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author | Neppelenbroek, Karin Hermana Pavarina, Ana Cláudia Gomes, Mauricio Neves Machado, Ana Lucia Vergani, Carlos Eduardo |
author_facet | Neppelenbroek, Karin Hermana Pavarina, Ana Cláudia Gomes, Mauricio Neves Machado, Ana Lucia Vergani, Carlos Eduardo |
author_sort | Neppelenbroek, Karin Hermana |
collection | PubMed |
description | PURPOSE: This study assessed the shear bond strength of 4 hard chairside reline resins (Kooliner, Tokuso Rebase Fast, Duraliner II, Ufi Gel Hard) to a rapid polymerizing denture base resin (QC-20) processed using 2 polymerization cycles (A or B), before and after thermal cycling. MATERIALS AND METHODS: Cylinders (3.5 mm x 5.0 mm) of the reline resins were bonded to cylinders of QC-20 polymerized using cycle A (boiling water–20 minutes) or B (boiling water; remove heat-20 minutes; boiling water–20 minutes). For each reline resin/polymerization cycle combination, 10 specimens (groups CAt e CBt) were thermally cycled (5 and 55 °C; dwell time 30 seconds; 2,000 cycles); the other 10 were tested without thermal cycling (groups CAwt ad CBwt). Shear bond tests (0.5 mm/min) were performed on the specimens and the failure mode was assessed. Data were analyzed by 3-way ANOVA and Newman-Keuls post-hoc test (α=.05). RESULTS: QC-20 resin demonstrated the lowest bond strengths among the reline materials (P<.05) and mainly failed cohesively. Overall, the bond strength of the hard chairside reline resins were similar (10.09±1.40 to 15.17±1.73 MPa) and most of the failures were adhesive/cohesive (mixed mode). However, Ufi Gel Hard bonded to QC-20 polymerized using cycle A and not thermally cycled showed the highest bond strength (P<.001). When Tokuso Rebase Fast and Duraliner II were bonded to QC-20 resin polymerized using cycle A, the bond strength was increased (P=.043) after thermal cycling. CONCLUSIONS: QC-20 displayed the lowest bond strength values in all groups. In general, the bond strengths of the hard chairside reline resins were comparable and not affected by polymerization cycle of QC-20 resin and thermal cycling. |
format | Online Article Text |
id | pubmed-4327296 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2006 |
publisher | Faculdade de Odontologia de Bauru da Universidade de São Paulo |
record_format | MEDLINE/PubMed |
spelling | pubmed-43272962015-03-01 BOND STRENGTH OF HARD CHAIRSIDE RELINE RESINS TO A RAPID POLYMERIZING DENTURE BASE RESIN BEFORE AND AFTER THERMAL CYCLING Neppelenbroek, Karin Hermana Pavarina, Ana Cláudia Gomes, Mauricio Neves Machado, Ana Lucia Vergani, Carlos Eduardo J Appl Oral Sci Original Article PURPOSE: This study assessed the shear bond strength of 4 hard chairside reline resins (Kooliner, Tokuso Rebase Fast, Duraliner II, Ufi Gel Hard) to a rapid polymerizing denture base resin (QC-20) processed using 2 polymerization cycles (A or B), before and after thermal cycling. MATERIALS AND METHODS: Cylinders (3.5 mm x 5.0 mm) of the reline resins were bonded to cylinders of QC-20 polymerized using cycle A (boiling water–20 minutes) or B (boiling water; remove heat-20 minutes; boiling water–20 minutes). For each reline resin/polymerization cycle combination, 10 specimens (groups CAt e CBt) were thermally cycled (5 and 55 °C; dwell time 30 seconds; 2,000 cycles); the other 10 were tested without thermal cycling (groups CAwt ad CBwt). Shear bond tests (0.5 mm/min) were performed on the specimens and the failure mode was assessed. Data were analyzed by 3-way ANOVA and Newman-Keuls post-hoc test (α=.05). RESULTS: QC-20 resin demonstrated the lowest bond strengths among the reline materials (P<.05) and mainly failed cohesively. Overall, the bond strength of the hard chairside reline resins were similar (10.09±1.40 to 15.17±1.73 MPa) and most of the failures were adhesive/cohesive (mixed mode). However, Ufi Gel Hard bonded to QC-20 polymerized using cycle A and not thermally cycled showed the highest bond strength (P<.001). When Tokuso Rebase Fast and Duraliner II were bonded to QC-20 resin polymerized using cycle A, the bond strength was increased (P=.043) after thermal cycling. CONCLUSIONS: QC-20 displayed the lowest bond strength values in all groups. In general, the bond strengths of the hard chairside reline resins were comparable and not affected by polymerization cycle of QC-20 resin and thermal cycling. Faculdade de Odontologia de Bauru da Universidade de São Paulo 2006-12 /pmc/articles/PMC4327296/ /pubmed/19089244 http://dx.doi.org/10.1590/S1678-77572006000600009 Text en http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Neppelenbroek, Karin Hermana Pavarina, Ana Cláudia Gomes, Mauricio Neves Machado, Ana Lucia Vergani, Carlos Eduardo BOND STRENGTH OF HARD CHAIRSIDE RELINE RESINS TO A RAPID POLYMERIZING DENTURE BASE RESIN BEFORE AND AFTER THERMAL CYCLING |
title | BOND STRENGTH OF HARD CHAIRSIDE RELINE RESINS TO A RAPID POLYMERIZING DENTURE BASE RESIN BEFORE AND AFTER THERMAL CYCLING |
title_full | BOND STRENGTH OF HARD CHAIRSIDE RELINE RESINS TO A RAPID POLYMERIZING DENTURE BASE RESIN BEFORE AND AFTER THERMAL CYCLING |
title_fullStr | BOND STRENGTH OF HARD CHAIRSIDE RELINE RESINS TO A RAPID POLYMERIZING DENTURE BASE RESIN BEFORE AND AFTER THERMAL CYCLING |
title_full_unstemmed | BOND STRENGTH OF HARD CHAIRSIDE RELINE RESINS TO A RAPID POLYMERIZING DENTURE BASE RESIN BEFORE AND AFTER THERMAL CYCLING |
title_short | BOND STRENGTH OF HARD CHAIRSIDE RELINE RESINS TO A RAPID POLYMERIZING DENTURE BASE RESIN BEFORE AND AFTER THERMAL CYCLING |
title_sort | bond strength of hard chairside reline resins to a rapid polymerizing denture base resin before and after thermal cycling |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4327296/ https://www.ncbi.nlm.nih.gov/pubmed/19089244 http://dx.doi.org/10.1590/S1678-77572006000600009 |
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