Comparison of shear bond strength of metal orthodontic brackets bonded to a CAD/CAM prosthetic provisional material after the use of a self-adhesive resin cement versus a light adhesive paste and different surface conditioning protocols: An in vitro study
| dc.coverage | DOI: 10.1016/j.ortho.2022.100661 | |
| dc.creator | Morales, Katherine | |
| dc.creator | Garces, Gonzalo | |
| dc.creator | Yagnam, Sharime | |
| dc.creator | Bustos, Valentina | |
| dc.creator | Belfus, Joyce | |
| dc.creator | Rojas, Victor | |
| dc.date | 2022 | |
| dc.date.accessioned | 2025-11-18T19:54:34Z | |
| dc.date.available | 2025-11-18T19:54:34Z | |
| dc.description | <p>Background: Adult orthodontic treatment has been increasingly popular, and brackets may need to be bonded to provisional crowns, including CAD/CAM crowns. The use of self-adhesive resin cement or light adhesive paste have been suggested with different surface conditioning protocols to improve the adhesion to CAD/CAM PMMA provisional crowns. Objective To determine and compare the in vitro shear bond strength (SBS) of metal brackets bonded to a provisional prosthetic CAD/CAM material after the use of different adhesive cements and surface conditioning protocols. Materials and methods: One hundred twenty Telio® CAD specimens were manufactured in 12 groups (n = 10). Each specimen was bonded to a metal bracket and divided according to adhesive technique (3M™Transbond™ XT Light Cure Paste or 3M™RelyX™ U200) surface treatment (macroretentions) and the use of silane. Half of the specimens were thermocycled (5000 cycles, 5 °C/55 °C water baths). The SBS test was carried out using a shear bond strength tester, and the type of adhesive failure was determined by means of the adhesive remnant index. The data were analysed with the Mann–Whitney test (α = 0.05). Results: Statistically significant differences (P < 0.001) in SBS were found among the groups. The group with macroretentions, silane, and not thermocycled was the one that obtained the highest average value (17.31 ± 4.89 MPa). The lowest average value was the group without macroretentions, without silane, and thermocycled (3.4 ± 3.37 MPa). Conclusion: The shear bond strength of brackets to provisional prosthetic CAD/CAM materials depended on the type of adhesive, surface treatment, and aging by thermocycling.</p> | eng |
| dc.identifier | https://investigadores.uandes.cl/en/publications/5789be63-86e9-484b-b62f-651582d478aa | |
| dc.identifier.uri | https://repositorio.uandes.cl/handle/uandes/58816 | |
| dc.language | eng | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | vol.20 (2022) nr.3 p.1-9 | |
| dc.subject | CAD/CAM | |
| dc.subject | Orthodontic adhesive | |
| dc.subject | Orthodontic bonding | |
| dc.subject | Shear Bond Strength | |
| dc.title | Comparison of shear bond strength of metal orthodontic brackets bonded to a CAD/CAM prosthetic provisional material after the use of a self-adhesive resin cement versus a light adhesive paste and different surface conditioning protocols: An in vitro study | eng |
| dc.type | Article | eng |
| dc.type | Artículo | spa |