Shear bond strength of Universal bonding systems to Ni-Cr alloy

So-Yeon Song; Byung-Wha Son; Jong-Yeob Kim; Sang-Wan Shin; Jeong-Yol Lee

doi:10.4047/jkap.2015.53.4.295

Journal List > J Korean Acad Prosthodont > v.53(4) > 1034837

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Song, Son, Kim, Shin, and Lee: Shear bond strength of Universal bonding systems to Ni-Cr alloy

Original Article

J Korean Acad Prosthodont 2015;53(4):295-300.

Published online: 9 February 2015

DOI: https://doi.org/10.4047/jkap.2015.53.4.295

Shear bond strength of Universal bonding systems to Ni-Cr alloy

So-Yeon Song¹, Byung-Wha Son¹, Jong-Yeob Kim², Sang-Wan Shin², Jeong-Yol Lee^2,^∗

¹Department of Biomedical Science, Graduate School of Korea University, Seoul, Republic of Korea

²Department of Prosthodontics, Korea University, Institute for Clinical Dental Research, Korea University Medical Center, Seoul, Republic of Korea

^∗Corresponding Author: Jeong-Yol Lee Department of Prosthodontics, Institute for Clinical Dental Research, KUMC, Korea University, 148, Gurodong-ro, Guro-gu, Seoul 08308, Republic of Korea +82 2 2626 3271: e-mail, wddc@korea.ac.kr

Received 26 May 201513 July 2015 Accepted 21 July 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

The aim of this study was to evaluate the shear bond strength between Ni-Cr alloy and composite resin using universal adhesive systems coMPared to conventional method using metal primers.

Materials and methods

For this study, a total of 120 cast commercial Ni-Cr alloy (Vera Bond 2V) disks were embedded in acrylic resin, and their surfaces were smoothed with silicon carbide papers and airborne-particle abrasion. Specimens of each metal were divided into 6 groups based on the combination of metal primers (Metal primer II, Alloy primer, Metal & Zirconia primer, MKZ primer) and universal adhesive systems (Single Bond Universal, All Bond Universal). All specimens were stored in distilled water at 37°C for 24 hours. Shear bond strength testing was performed with a universal testing machine at a cross head speed of 1 m/min. Data (MPa) were analyzed using one-way ANOVA and the post hoc Tukey’ s multiple comparison test (α =.05).

Results

There were significant differences between Single Bond Universal, All Bond Universal, Metal Primer II and Alloy Primer, MKZ Primer, Metal & Zirconia Primer (P<.001).

Conclusion

Universal Adhesive system groups indicated high shear bond strength value bonded to Ni-Cr alloy than that of conventional system groups using primers except Metal Primer II. Within the limitations of this study, improvement of universal adhesive systems which can be applied to all types of restorations is recommended especially non-precious metal alloy. More research is needed to evaluate the effect of silane inclusion or exclusion in universal adhesive systems.

Keywords: Universal Adhesive system, Silane, 10-MDP, MEPS, Shear bond strength, Phosphate monomer

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Fig. 1.

Cross-sectional illustration of shear bond strength test set up. (a) Mounting jig, (b) Pink acrylic resin, (c) Ni-Cr disk, (d) Composite resin, (e) Instron rod.

Table 1.

The resin bonding systems used in this study

Trade name	Composition	Lot No.	Manufacturer
Alloy Primer	110-Methacryloyloxydecyl Dihydrogen Phosphate (MDP),	00445B	Kuraray, Osaka, Japan
	6-(vinylbenzyl-n-propyl) amino-1,3,5-triazine-2,4-dithione (VBATDT), Aceton
Metal primer II	Methacryloyloxyalkyl thiophosphate (MEPS), Methyl methacrylate (MMA)	1307022	GC, Tokyo, Japan
Metal & Zirconia Primer	Phosphonic acid, t-butyl alcohol	R60214	Ivoclar Vivadent AG, Schaan,
			Principality of Liechtenstein
MKZ Primer	Ethanol	537120	Bredent GmbH, Senden, Germany
Single Bond Universal	Organophosphate monomer (MDP) dimethar crylate resin (Bis-GMA, etc),	494909	3M ESPE, St. Paul, MN, USA
	HEMA, vitrebond copolymer, filler, ethanol, water initiators, silane
All Bond Universal	Organophosphate monomer (MDP), Bis-GMA, HEMA, etahanol, water, initiators	1300000367	BISCO Inc., Schaumburg, IL, USA

Table 2.

Classification of experimental group

Experimental group	Surface treatment	N
A	Alloy Primer (Kuraray)	20
B	Metal primer II (GC)	20
C	Metal & Zirconia Primer (Vivadent)	20
D	MKZ Primer (Bredent)	20
E	Single Bond Universal	20
F	All Bond Universal	20

^∗ Composite resin adhesive of A, B, C, and D groups used Single Bond2.

Table 3.

Mean (± SD) of shear bond strength

Group	Shear bond strength (MPa)
Alloy Primer	14.00 ± 4.33 ^a
Metal primer II	18.40 ± 4.36 ^b
Metal & Zirconia Primer	11.92 ± 2.96 ^a
MKZ Primer	14.34 ± 3.15 ^a
Single Bond Universal	19.40 ± 4.29 ^b
All Bond Universal	16.79 ± 4.08 ^b

^∗ a, b: Groups with different letters represent statistically difference (P<.001).

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