In vitro assessment of chemical surface treatments on the shear bond strength of metal orthodontic brackets to CAD/CAM provisional materials
IntroductionThe growing demand for orthodontic treatment in patients irrespective of age highlights the need for effective bonding of brackets to provisional crowns (PCs).Aims and objectivesThis study evaluates the shear bond strength (SBS) of orthodontic brackets to 3D-printed and milled PC materia...
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Frontiers Media S.A.
2024-12-01
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| Series: | Frontiers in Dental Medicine |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fdmed.2024.1494484/full |
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| author | Abdulaziz A. Alzaid Abdulaziz A. Alzaid Khalid K. Alanazi Maha N. Alharbi Maha N. Alharbi Lulu A. Alyahya Lulu A. Alyahya Hatem Alqarni Hatem Alqarni Mohammed Alsaloum Mohammed Alsaloum Hayam Alfallaj Hayam Alfallaj Ghada S. Alotaibi Ghada S. Alotaibi Ghada S. Alotaibi |
| author_facet | Abdulaziz A. Alzaid Abdulaziz A. Alzaid Khalid K. Alanazi Maha N. Alharbi Maha N. Alharbi Lulu A. Alyahya Lulu A. Alyahya Hatem Alqarni Hatem Alqarni Mohammed Alsaloum Mohammed Alsaloum Hayam Alfallaj Hayam Alfallaj Ghada S. Alotaibi Ghada S. Alotaibi Ghada S. Alotaibi |
| author_sort | Abdulaziz A. Alzaid |
| collection | DOAJ |
| description | IntroductionThe growing demand for orthodontic treatment in patients irrespective of age highlights the need for effective bonding of brackets to provisional crowns (PCs).Aims and objectivesThis study evaluates the shear bond strength (SBS) of orthodontic brackets to 3D-printed and milled PC materials, comparing the effects of hydrofluoric acid (HFA) and phosphoric acid (PA) etching.Materials and methodsForty cylinders were fabricated using a 3D printer with hybrid resin, and forty were milled from cross-linked polymethyl methacrylate (PMMA) resin. Stainless steel brackets were bonded with light-cured composite resin. Twenty specimens from each group were treated with 9.5% HFA, while the rest of the specimens received 37% PA. Post-bonding, specimens underwent thermocycling and were examined with SEM. SBS testing followed ISO/TS 11405-2015 guidelines. The failure patterns and bond interface were assessed by the Adhesive Remnant Index (ARI) and scanning electron microscopy (SEM). Data was analyzed using ANOVA, Tukey's test.ResultsIn 3D-printed materials, HFA etching yielded a significantly higher bond strength (12.59 ± 2.64 MPa) than PA etching (7.77 ± 0.83 MPa). The bond strength was inferior in milled materials: HFA (5.98 ± 0.59 MPa) and PA (5.66 ± 0.65 MPa) with no significant difference between both surface treatments. When each material was evaluated separately, a significant difference in SBS was found for surface treatments in 3D-printed materials (p < 0.001) but not for milled materials (p = 0.916). ARI scores showed greater adhesive retention in 3D-printed specimens, particularly those treated with HFA. SEM revealed smoother surfaces in 3D-printed specimens compared to rougher surfaces in milled specimens.ConclusionHFA etching improves SBS in 3D-printed PC, while in milled materials, the choice of etching agent has minimal effect. |
| format | Article |
| id | doaj-art-bcd8f87a55cb430093a5ae67ff0b269f |
| institution | OA Journals |
| issn | 2673-4915 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Dental Medicine |
| spelling | doaj-art-bcd8f87a55cb430093a5ae67ff0b269f2025-08-20T02:34:20ZengFrontiers Media S.A.Frontiers in Dental Medicine2673-49152024-12-01510.3389/fdmed.2024.14944841494484In vitro assessment of chemical surface treatments on the shear bond strength of metal orthodontic brackets to CAD/CAM provisional materialsAbdulaziz A. Alzaid0Abdulaziz A. Alzaid1Khalid K. Alanazi2Maha N. Alharbi3Maha N. Alharbi4Lulu A. Alyahya5Lulu A. Alyahya6Hatem Alqarni7Hatem Alqarni8Mohammed Alsaloum9Mohammed Alsaloum10Hayam Alfallaj11Hayam Alfallaj12Ghada S. Alotaibi13Ghada S. Alotaibi14Ghada S. Alotaibi15Restorative and Prosthetic Dental Sciences Department, College of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi ArabiaKing Abdullah International Medical Research Center, Riyadh, Saudi ArabiaConservative Dental Science Department, College of Dentistry, Prince Sattam bin Abdulaziz University, Al-kharj, Saudi ArabiaKing Abdullah International Medical Research Center, Riyadh, Saudi ArabiaCollege of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi ArabiaKing Abdullah International Medical Research Center, Riyadh, Saudi ArabiaCollege of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi ArabiaRestorative and Prosthetic Dental Sciences Department, College of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi ArabiaKing Abdullah International Medical Research Center, Riyadh, Saudi ArabiaRestorative and Prosthetic Dental Sciences Department, College of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi ArabiaKing Abdullah International Medical Research Center, Riyadh, Saudi ArabiaRestorative and Prosthetic Dental Sciences Department, College of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi ArabiaKing Abdullah International Medical Research Center, Riyadh, Saudi ArabiaKing Abdullah International Medical Research Center, Riyadh, Saudi ArabiaCollege of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi ArabiaKing Abdulaziz Medical City, Ministry of the National Guard—Health Affairs, Riyadh, Saudi ArabiaIntroductionThe growing demand for orthodontic treatment in patients irrespective of age highlights the need for effective bonding of brackets to provisional crowns (PCs).Aims and objectivesThis study evaluates the shear bond strength (SBS) of orthodontic brackets to 3D-printed and milled PC materials, comparing the effects of hydrofluoric acid (HFA) and phosphoric acid (PA) etching.Materials and methodsForty cylinders were fabricated using a 3D printer with hybrid resin, and forty were milled from cross-linked polymethyl methacrylate (PMMA) resin. Stainless steel brackets were bonded with light-cured composite resin. Twenty specimens from each group were treated with 9.5% HFA, while the rest of the specimens received 37% PA. Post-bonding, specimens underwent thermocycling and were examined with SEM. SBS testing followed ISO/TS 11405-2015 guidelines. The failure patterns and bond interface were assessed by the Adhesive Remnant Index (ARI) and scanning electron microscopy (SEM). Data was analyzed using ANOVA, Tukey's test.ResultsIn 3D-printed materials, HFA etching yielded a significantly higher bond strength (12.59 ± 2.64 MPa) than PA etching (7.77 ± 0.83 MPa). The bond strength was inferior in milled materials: HFA (5.98 ± 0.59 MPa) and PA (5.66 ± 0.65 MPa) with no significant difference between both surface treatments. When each material was evaluated separately, a significant difference in SBS was found for surface treatments in 3D-printed materials (p < 0.001) but not for milled materials (p = 0.916). ARI scores showed greater adhesive retention in 3D-printed specimens, particularly those treated with HFA. SEM revealed smoother surfaces in 3D-printed specimens compared to rougher surfaces in milled specimens.ConclusionHFA etching improves SBS in 3D-printed PC, while in milled materials, the choice of etching agent has minimal effect.https://www.frontiersin.org/articles/10.3389/fdmed.2024.1494484/fulladhesive performancedental materialsorthodontic bondingsurface modificationtemporary restorations |
| spellingShingle | Abdulaziz A. Alzaid Abdulaziz A. Alzaid Khalid K. Alanazi Maha N. Alharbi Maha N. Alharbi Lulu A. Alyahya Lulu A. Alyahya Hatem Alqarni Hatem Alqarni Mohammed Alsaloum Mohammed Alsaloum Hayam Alfallaj Hayam Alfallaj Ghada S. Alotaibi Ghada S. Alotaibi Ghada S. Alotaibi In vitro assessment of chemical surface treatments on the shear bond strength of metal orthodontic brackets to CAD/CAM provisional materials Frontiers in Dental Medicine adhesive performance dental materials orthodontic bonding surface modification temporary restorations |
| title | In vitro assessment of chemical surface treatments on the shear bond strength of metal orthodontic brackets to CAD/CAM provisional materials |
| title_full | In vitro assessment of chemical surface treatments on the shear bond strength of metal orthodontic brackets to CAD/CAM provisional materials |
| title_fullStr | In vitro assessment of chemical surface treatments on the shear bond strength of metal orthodontic brackets to CAD/CAM provisional materials |
| title_full_unstemmed | In vitro assessment of chemical surface treatments on the shear bond strength of metal orthodontic brackets to CAD/CAM provisional materials |
| title_short | In vitro assessment of chemical surface treatments on the shear bond strength of metal orthodontic brackets to CAD/CAM provisional materials |
| title_sort | in vitro assessment of chemical surface treatments on the shear bond strength of metal orthodontic brackets to cad cam provisional materials |
| topic | adhesive performance dental materials orthodontic bonding surface modification temporary restorations |
| url | https://www.frontiersin.org/articles/10.3389/fdmed.2024.1494484/full |
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