Additive effects of touch-activated polymerization and extended irradiation time on bonding of light-activated adhesives to root canal dentin
Copyright © 2020 Editorial Council for the Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved..
STATEMENT OF PROBLEM: The bonding of light-activated adhesives to root canal dentin with an additional touch-polymerization activator has been insufficiently examined.
PURPOSE: The purpose of this in vitro study was to investigate the effect of touch-polymerization activators and extended light-irradiation time on the microtensile bond strength (μTBS) of light-activated adhesives.
MATERIAL AND METHODS: Post cavities were prepared in 50 extracted mandibular premolars and bonded using Prime&Bond Universal (PBU); PBU+Self Cure Activator (SCA); Clearfil SE Bond 2 (SEB); SEB+Clearfil DC Activator (DCA); or Clearfil Universal Bond Quick ER (UBQ). After light-irradiation for 10 or 20 seconds, the post cavities were filled with dual-activated resin core materials. Eight beams were prepared per specimen and subjected to the μTBS test. The μTBS data were analyzed by using 3-way ANOVAs with the Bonferroni correction (α=.05).
RESULTS: The 3-way ANOVAs indicated that the use of touch-polymerization activators (SCA and DCA) significantly increased the μTBS of PBU and SEB in both the coronal (P=.015) and apical (P=.001) regions. The extension of light-irradiation time to 20 seconds significantly improved their μTBS in the apical region (P<.001), but not in the coronal region (P=.09). Light-irradiation for 20 seconds increased the μTBS of UBQ significantly in the coronal region (P=.014).
CONCLUSIONS: Touch-polymerization activators improved the bond strength of light-activated adhesives to root canal dentin, especially when combined with an extended light-irradiation time.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:127 |
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| Enthalten in: |
The Journal of prosthetic dentistry - 127(2022), 5 vom: 01. Mai, Seite 750-758 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Dwiandhany, Wahyuni S [VerfasserIn] |
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| Links: |
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| Themen: |
Composite Resins |
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| Anmerkungen: |
Date Completed 21.06.2022 Date Revised 21.06.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.prosdent.2020.11.021 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
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| 100 | 1 | |a Dwiandhany, Wahyuni S |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Additive effects of touch-activated polymerization and extended irradiation time on bonding of light-activated adhesives to root canal dentin |
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| 500 | |a Date Completed 21.06.2022 | ||
| 500 | |a Date Revised 21.06.2022 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2020 Editorial Council for the Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved. | ||
| 520 | |a STATEMENT OF PROBLEM: The bonding of light-activated adhesives to root canal dentin with an additional touch-polymerization activator has been insufficiently examined | ||
| 520 | |a PURPOSE: The purpose of this in vitro study was to investigate the effect of touch-polymerization activators and extended light-irradiation time on the microtensile bond strength (μTBS) of light-activated adhesives | ||
| 520 | |a MATERIAL AND METHODS: Post cavities were prepared in 50 extracted mandibular premolars and bonded using Prime&Bond Universal (PBU); PBU+Self Cure Activator (SCA); Clearfil SE Bond 2 (SEB); SEB+Clearfil DC Activator (DCA); or Clearfil Universal Bond Quick ER (UBQ). After light-irradiation for 10 or 20 seconds, the post cavities were filled with dual-activated resin core materials. Eight beams were prepared per specimen and subjected to the μTBS test. The μTBS data were analyzed by using 3-way ANOVAs with the Bonferroni correction (α=.05) | ||
| 520 | |a RESULTS: The 3-way ANOVAs indicated that the use of touch-polymerization activators (SCA and DCA) significantly increased the μTBS of PBU and SEB in both the coronal (P=.015) and apical (P=.001) regions. The extension of light-irradiation time to 20 seconds significantly improved their μTBS in the apical region (P<.001), but not in the coronal region (P=.09). Light-irradiation for 20 seconds increased the μTBS of UBQ significantly in the coronal region (P=.014) | ||
| 520 | |a CONCLUSIONS: Touch-polymerization activators improved the bond strength of light-activated adhesives to root canal dentin, especially when combined with an extended light-irradiation time | ||
| 650 | 4 | |a Journal Article | |
| 650 | 7 | |a Composite Resins |2 NLM | |
| 650 | 7 | |a Dental Cements |2 NLM | |
| 650 | 7 | |a Dentin-Bonding Agents |2 NLM | |
| 650 | 7 | |a Resin Cements |2 NLM | |
| 700 | 1 | |a Abdou, Ahmed |e verfasserin |4 aut | |
| 700 | 1 | |a Tichy, Antonin |e verfasserin |4 aut | |
| 700 | 1 | |a Yonekura, Kazuhide |e verfasserin |4 aut | |
| 700 | 1 | |a Ikeda, Masaomi |e verfasserin |4 aut | |
| 700 | 1 | |a Hosaka, Keiichi |e verfasserin |4 aut | |
| 700 | 1 | |a Tagami, Junji |e verfasserin |4 aut | |
| 700 | 1 | |a Nakajima, Masatoshi |e verfasserin |4 aut | |
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