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Comparison of bond strengths of ceramic brackets bonded to zirconia surfaces using different zirconia primers and a universal adhesive

Authors
 Ji-Yeon Lee  ;  Jaechan Ahn  ;  Sang In An  ;  Jeong-Won Park 
Citation
 Restorative Dentistry & Endodontics, Vol.43(1) : e7, 2018 
Journal Title
 Restorative Dentistry & Endodontics 
ISSN
 2234-7658 
Issue Date
2018
Keywords
Ceramic bracket ; Multi-mode adhesive ; Orthodontic bracket ; Universal adhesive ; Zirconia ; Zirconia primer
Abstract
Objectives: The aim of this study is to compare the shear bond strengths of ceramic brackets bonded to zirconia surfaces using different zirconia primers and universal adhesive. Materials and Methods: Fifty zirconia blocks (15 x 15 x 10 mm, Zpex, Tosoh Corporation) were polished with 1,000 grit sand paper and air-abraded with 50 microm Al2O3 for 10 seconds (40 psi). They were divided into 5 groups: control (CO), Metal/Zirconia primer (MZ, Ivoclar Vivadent), Z-PRIME Plus (ZP, Bisco), Zirconia Liner (ZL, Sun Medical), and Scotchbond Universal adhesive (SU, 3M ESPE). Transbond XT Primer (used for CO, MZ, ZP, and ZL) and Transbond XT Paste was used for bracket bonding (Gemini clear ceramic brackets, 3M Unitek). After 24 hours at 37 degrees C storage, specimens underwent 2,000 thermocycles, and then, shear bond strengths were measured (1 mm/min). An adhesive remnant index (ARI) score was calculated. The data were analyzed using one-way analysis of variance and the Bonferroni test (p = 0.05). Results: Surface treatment with primers resulted in increased shear bond strength. The SU group showed the highest shear bond strength followed by the ZP, ZL, MZ, and CO groups, in that order. The median ARI scores were as follows: CO = 0, MZ = 0, ZP = 0, ZL = 0, and SU = 3 (p < 0.05). Conclusions: Within this experiment, zirconia primer can increase the shear bond strength of bracket bonding. The highest shear bond strength is observed in SU group, even when no primer is used.
Files in This Item:
T201800453.pdf Download
DOI
10.5395/rde.2018.43.e7
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Conservative Dentistry (보존과학교실) > 1. Journal Papers
Yonsei Authors
박정원(Park, Jeong Won) ORCID logo https://orcid.org/0000-0002-2517-8150
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/161982
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