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Bracket bonding to polymethylmethacrylate-based materials for computer-aided design/manufacture temporary restorations: influence of mechanical treatment and chemical treatment with universal adhesives

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Bracket bonding to polymethylmethacrylate-based materials for computer-aided design/manufacture temporary restorations: influence of mechanical treatment and chemical treatment with universal adhesives. / Goracci, Cecilia; Özcan, Mutlu; Franchi, Lorenzo; Di Bello, Giuseppe; Louca, Chris; Vichi, Alessandro.

In: Korean Journal of Orthodontics, Vol. 49, No. 6, 26.11.2019, p. 404-412.

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Goracci, Cecilia ; Özcan, Mutlu ; Franchi, Lorenzo ; Di Bello, Giuseppe ; Louca, Chris ; Vichi, Alessandro. / Bracket bonding to polymethylmethacrylate-based materials for computer-aided design/manufacture temporary restorations: influence of mechanical treatment and chemical treatment with universal adhesives. In: Korean Journal of Orthodontics. 2019 ; Vol. 49, No. 6. pp. 404-412.

Bibtex

@article{6e11353b22e8407496f38776e0833f1a,
title = "Bracket bonding to polymethylmethacrylate-based materials for computer-aided design/manufacture temporary restorations: influence of mechanical treatment and chemical treatment with universal adhesives",
abstract = "Objective: To assess shear bond strength and failure mode (Adhesive Remnant Index, ARI) of orthodontic brackets bonded to polymethylmethacrylate (PMMA) blocks for computer-aided design/manufacture (CAD/CAM) fabrication of temporary restorations, following substrate chemical or mechanical treatment.Methods: Two types of PMMA blocks were tested: CAD-Temp{\circledR} (VITA) and Telio{\circledR} CAD (Ivoclar-Vivadent). The substrate was roughened with 320-grit sandpaper, simulating a fine-grit diamond bur. Two universal adhesives, Scotchbond Universal Adhesive (SU) and Assure Plus (AP), and a conventional adhesive, Transbond XT Primer (XTP; control), were used in combination with Transbond XT Paste to bond the brackets. Six experimental groups were formed: (1) CADTemp{\circledR}/SU; (2) CAD-Temp{\circledR}/AP; (3) CAD-Temp{\circledR}/XTP; (4) Telio{\circledR} CAD/SU; (5) Telio{\circledR} CAD/AP; (6) Telio{\circledR} CAD/XTP. Shear bond strength and ARI were assessed. On 1 extra block for each PMMA-based material surfaces were roughened with 180-grit sandpaper, simulating a normal/medium-grit (100 mm) diamond bur, and brackets were bonded. Shear bond strengths and ARI scores were compared with those of groups 3, 6. Results: On CAD-Temp{\circledR} significantly higher bracket bond strengths than on Telio{\circledR} CAD were recorded. With XTP significantly lower levels of adhesion were reached than using SU or AP. Roughening with a coarser bur resulted in a significant increase in adhesion. Conclusions: Bracket bonding to CAD/CAM PMMA can be promoted by grinding the substrate with a normal/medium-grit bur or by coating the intact surface with universal adhesives. With appropriate pretreatments, bracket adhesion to CAD/CAM PMMA temporary restorations can be enhanced to clinically satisfactory levels.",
author = "Cecilia Goracci and Mutlu {\"O}zcan and Lorenzo Franchi and {Di Bello}, Giuseppe and Chris Louca and Alessandro Vichi",
note = "DOI going to Crossref rather than journal website - 10.4041/kjod.2019.49.6.404",
year = "2019",
month = "11",
day = "26",
language = "English",
volume = "49",
pages = "404--412",
journal = "Korean Journal of Orthodontics",
issn = "2234-7518",
publisher = "Korean Association of Orthodontists",
number = "6",

}

RIS

TY - JOUR

T1 - Bracket bonding to polymethylmethacrylate-based materials for computer-aided design/manufacture temporary restorations: influence of mechanical treatment and chemical treatment with universal adhesives

AU - Goracci, Cecilia

AU - Özcan, Mutlu

AU - Franchi, Lorenzo

AU - Di Bello, Giuseppe

AU - Louca, Chris

AU - Vichi, Alessandro

N1 - DOI going to Crossref rather than journal website - 10.4041/kjod.2019.49.6.404

PY - 2019/11/26

Y1 - 2019/11/26

N2 - Objective: To assess shear bond strength and failure mode (Adhesive Remnant Index, ARI) of orthodontic brackets bonded to polymethylmethacrylate (PMMA) blocks for computer-aided design/manufacture (CAD/CAM) fabrication of temporary restorations, following substrate chemical or mechanical treatment.Methods: Two types of PMMA blocks were tested: CAD-Temp® (VITA) and Telio® CAD (Ivoclar-Vivadent). The substrate was roughened with 320-grit sandpaper, simulating a fine-grit diamond bur. Two universal adhesives, Scotchbond Universal Adhesive (SU) and Assure Plus (AP), and a conventional adhesive, Transbond XT Primer (XTP; control), were used in combination with Transbond XT Paste to bond the brackets. Six experimental groups were formed: (1) CADTemp®/SU; (2) CAD-Temp®/AP; (3) CAD-Temp®/XTP; (4) Telio® CAD/SU; (5) Telio® CAD/AP; (6) Telio® CAD/XTP. Shear bond strength and ARI were assessed. On 1 extra block for each PMMA-based material surfaces were roughened with 180-grit sandpaper, simulating a normal/medium-grit (100 mm) diamond bur, and brackets were bonded. Shear bond strengths and ARI scores were compared with those of groups 3, 6. Results: On CAD-Temp® significantly higher bracket bond strengths than on Telio® CAD were recorded. With XTP significantly lower levels of adhesion were reached than using SU or AP. Roughening with a coarser bur resulted in a significant increase in adhesion. Conclusions: Bracket bonding to CAD/CAM PMMA can be promoted by grinding the substrate with a normal/medium-grit bur or by coating the intact surface with universal adhesives. With appropriate pretreatments, bracket adhesion to CAD/CAM PMMA temporary restorations can be enhanced to clinically satisfactory levels.

AB - Objective: To assess shear bond strength and failure mode (Adhesive Remnant Index, ARI) of orthodontic brackets bonded to polymethylmethacrylate (PMMA) blocks for computer-aided design/manufacture (CAD/CAM) fabrication of temporary restorations, following substrate chemical or mechanical treatment.Methods: Two types of PMMA blocks were tested: CAD-Temp® (VITA) and Telio® CAD (Ivoclar-Vivadent). The substrate was roughened with 320-grit sandpaper, simulating a fine-grit diamond bur. Two universal adhesives, Scotchbond Universal Adhesive (SU) and Assure Plus (AP), and a conventional adhesive, Transbond XT Primer (XTP; control), were used in combination with Transbond XT Paste to bond the brackets. Six experimental groups were formed: (1) CADTemp®/SU; (2) CAD-Temp®/AP; (3) CAD-Temp®/XTP; (4) Telio® CAD/SU; (5) Telio® CAD/AP; (6) Telio® CAD/XTP. Shear bond strength and ARI were assessed. On 1 extra block for each PMMA-based material surfaces were roughened with 180-grit sandpaper, simulating a normal/medium-grit (100 mm) diamond bur, and brackets were bonded. Shear bond strengths and ARI scores were compared with those of groups 3, 6. Results: On CAD-Temp® significantly higher bracket bond strengths than on Telio® CAD were recorded. With XTP significantly lower levels of adhesion were reached than using SU or AP. Roughening with a coarser bur resulted in a significant increase in adhesion. Conclusions: Bracket bonding to CAD/CAM PMMA can be promoted by grinding the substrate with a normal/medium-grit bur or by coating the intact surface with universal adhesives. With appropriate pretreatments, bracket adhesion to CAD/CAM PMMA temporary restorations can be enhanced to clinically satisfactory levels.

UR - https://e-kjo.org/index.php?body=instructions

M3 - Article

VL - 49

SP - 404

EP - 412

JO - Korean Journal of Orthodontics

JF - Korean Journal of Orthodontics

SN - 2234-7518

IS - 6

ER -

ID: 16574563