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- Publisher Website: 10.1016/j.identj.2023.04.008
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Article: Effect of MMP Inhibitors on the Bond Strength of Fibre Posts After Ageing
Title | Effect of MMP Inhibitors on the Bond Strength of Fibre Posts After Ageing |
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Authors | |
Keywords | Aged-loaded Bond degradation Bond strength Fibre post |
Issue Date | 24-May-2023 |
Publisher | Wiley Open Access |
Citation | International Dental Journal, 2023 How to Cite? |
Abstract | AimThis in vitro study aimed to evaluate the effect of matrix metalloproteinase (MMP) inhibitors on the bond strength of resin-cemented fibre posts to radicular dentin under an aged-loaded condition. Materials and methodsRadicular dentin was prepared and irrigated by MMP inhibitor solution after root canal obturation in 60 extracted single-rooted teeth based on 6 groups: (1) 2% chlorhexidine (CHX) + loaded; (2) CHX + unloaded; (3) 0.5% benzalkonium chloride (BAC) + loaded; (4) BAC + unloaded; (5) 17% ethylenediaminetetraacetic acid (EDTA) + loaded; and (6) EDTA + unloaded. After final rinsing, all specimens were sliced cross-sectionally and kept in a water bath for 12 months of ageing. Groups 1, 3, and 5 were subjected to cyclic loading. Push-out tests were conducted using a universal testing machine, and failure mode was examined. The data were analysed using 3-way analysis of variance and post hoc tests at α = 0.05. ResultsBAC + unloaded demonstrated the highest mean bond strength (3.12 ± 0.18 MPa; P < .001), while the BAC + loaded and CHX + loaded groups showed a significantly lower push-out bond strength than their unloaded counterparts. Mixed adhesive-cohesive failure was the most common failure mode observed. ConclusionsWithout cycling loading, BAC was superior to CHX and EDTA in preserving the bond strength of resin-cemented fibre posts after 12 months of ageing. Loading significantly weakened the effectiveness of BAC and CHX in preserving the bond strength. |
Persistent Identifier | http://hdl.handle.net/10722/338446 |
ISSN | 2023 Impact Factor: 3.2 2023 SCImago Journal Rankings: 0.803 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Ng, Tai Yin Kelvin | - |
dc.contributor.author | Lee, Angeline Hui Cheng | - |
dc.contributor.author | Chang, Jeffrey Wen Wei | - |
dc.contributor.author | Leung, Wing See Fiona | - |
dc.contributor.author | Cen, Rong | - |
dc.contributor.author | Cheung, Gary Shun Pan | - |
dc.contributor.author | Zhang, Chengfei | - |
dc.date.accessioned | 2024-03-11T10:28:57Z | - |
dc.date.available | 2024-03-11T10:28:57Z | - |
dc.date.issued | 2023-05-24 | - |
dc.identifier.citation | International Dental Journal, 2023 | - |
dc.identifier.issn | 0020-6539 | - |
dc.identifier.uri | http://hdl.handle.net/10722/338446 | - |
dc.description.abstract | <h3>Aim</h3><p>This in vitro study aimed to evaluate the effect of matrix metalloproteinase (MMP) inhibitors on the bond strength of resin-cemented fibre posts to radicular dentin under an aged-loaded condition.</p><h3>Materials and methods</h3><p>Radicular dentin was prepared and irrigated by MMP inhibitor solution after root canal obturation in 60 extracted single-rooted teeth based on 6 groups: (1) 2% chlorhexidine (CHX) + loaded; (2) CHX + unloaded; (3) 0.5% benzalkonium chloride (BAC) + loaded; (4) BAC + unloaded; (5) 17% ethylenediaminetetraacetic acid (EDTA) + loaded; and (6) EDTA + unloaded. After final rinsing, all specimens were sliced cross-sectionally and kept in a water bath for 12 months of ageing. Groups 1, 3, and 5 were subjected to cyclic loading. Push-out tests were conducted using a universal testing machine, and failure mode was examined. The data were analysed using 3-way analysis of variance and post hoc tests at α = 0.05.</p><h3>Results</h3><p>BAC + unloaded demonstrated the highest mean bond strength (3.12 ± 0.18 MPa; <em>P</em> < .001), while the BAC + loaded and CHX + loaded groups showed a significantly lower push-out bond strength than their unloaded counterparts. Mixed adhesive-cohesive failure was the most common failure mode observed.</p><h3>Conclusions</h3><p>Without cycling loading, BAC was superior to CHX and EDTA in preserving the bond strength of resin-cemented fibre posts after 12 months of ageing. Loading significantly weakened the effectiveness of BAC and CHX in preserving the bond strength.</p> | - |
dc.language | eng | - |
dc.publisher | Wiley Open Access | - |
dc.relation.ispartof | International Dental Journal | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Aged-loaded | - |
dc.subject | Bond degradation | - |
dc.subject | Bond strength | - |
dc.subject | Fibre post | - |
dc.title | Effect of MMP Inhibitors on the Bond Strength of Fibre Posts After Ageing | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.identj.2023.04.008 | - |
dc.identifier.scopus | eid_2-s2.0-85159898691 | - |
dc.identifier.eissn | 1875-595X | - |
dc.identifier.isi | WOS:001109117600001 | - |
dc.identifier.issnl | 0020-6539 | - |