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Microtensile bond strength of single step adhesives to dentin


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Microtensile bond strength of single step adhesives to dentin

Article information

Restor Dent Endod. 2005;30(4):312-318
Publication date (electronic) : 2005 July 30
doi : https://doi.org/10.5395/JKACD.2005.30.4.312
Young-Gon Cho, Young-Jae Kee
Department of Conservative Dentistry, College of Dentistry, Chosun University, Korea.
Corresponding author: Young-Gon Cho. Department of Conservative Dentistry, College of Dentistry, Chosun University, 421 Seosuk-dong, Dong-gu, Gwangju, Korea, 501-825. Tel: 82-62-220-3840, 3845, Fax: 82-62-232-9064, ygcho@mail.chosun.ac.kr
Received 2004 December 24; Revised 2005 February 18; Accepted 2005 March 05.

Abstract

This study compared the microtensile bond strength (µTBS) of three single step adhesives to dentin.

Occlusal superficial dentin was exposed in fifteen human molars. They were assigned to three groups by used adhesives: Xeno group (Xeno III), Prompt group (Adper Prompt L-Pop), AQ group (AQ Bond).

Each adhesive was applied to dentin surface, and composite of same manufacturer was constructed. The bonded specimens were sectioned into sticks with an interface area approximately 1 mm2, and subjected to µTBS testing with a crosshead speed of 1 mm/minute. The results of this study were as follows;

The µTBS to dentin was 48.78 ± 9.83 MPa for Xeno III, 30.22 ± 4.52 MPa for Adper Prompt L-Pop, and 26.31 ± 7.07 MPa for AQ Bond.

The mean µTBS of Xeno group was significantly higher than that of Prompt group and AQ group (p < 0.05).

There was no significant difference between the µTBS of Prompt group and AQ group.

Keywords: Microtensile bond strength (µTBS); Single step adhesives; Superficial dentin; Interface area

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Article information Continued

Copyright © 2005 Korean Academy of Conservative Dentistry
(open-access) :

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.

Figure 1

Figure 1

Specimen adhered to the testing apparatus.

Figure 2

Figure 2

EZ test for microtensile bond strength test.

Table 1

The components and pH of single step adhesives and composites

Table 1

HEMA: 2 hydroxyethyl methacrylate, Pyro-EMA: tetramethacryloxyethyl pyrophophate, PEM-F: pentamethacryloxyethyl cyclophophazen mono fluoride, UDMA: urethane dimeth-acrylate, BHT: 2,6-Di-tert-butyl-p hydroxyl toluene, EPD: p-dimethylamino ethyl benzoate, Bis-GMA: Bisphenol glycidyl methacrylate, 4-META: 4-metha-cryloxyethyl trimellitate anhydride, PTS: p-toluensulfinic acid sodium salt

Table 2

Mean microtensile bond strength of each group (Unit: MPa, Mean ± S.D.)

Table 2

Superscripts of the different letters indicate values of statistical significant difference (p < 0.05, Tukey test).