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Park, Cho, and Cho: Effect of application methods of a self-etching primer adhesive system on enamel bond strength
Original Article
Journal of Korean Academy of Conservative Dentistry

Journal of Korean Academy of Conservative Dentistry 2008; 33(2): 90-97.

Published online: 31 March 2008

DOI: https://doi.org/10.5395/JKACD.2008.33.2.090

Effect of application methods of a self-etching primer adhesive system on enamel bond strength

Jae-Gu Park, Kwon-Hwan Cho, Young-Gon Cho

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, 501-825, Korea. Tel: 82-62-220-3840, Fax: 82-62-232-9064, ygcho@chosun.ac.kr

Received 18 January 2008       Revised 16 February 2008       Accepted 4 March 2008

Copyright © 2008 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.

Abstract

The purpose of this study was to evaluate the effect of passive or active application of primer and coat times of bond on the shear bond strength when a self-etching primer adhesive (Clearfil SE Bond) was applied to enamel surface.
Crowns of sixteen human molars were selected. Buccal and lingual enamels of crowns were partially exposed and slabs of 1.2 mm thick were made. They were divided into one of four equal groups (n = 8). Group 1: passive application of Primer and 1 coat of Bond, Group 2: active application of Primer and 1 coat of Bond, Group 3: passive application of Primer and 2 coats of Bond, Group 4: active application of Primer and 2 coats of Bond. Clearfil AP-X was bonded to enamel suface of each group using Tygon tubes. The bonded specimens were subjected to microshear bond strength (uSBS) testing with a crosshead speed of 1 mm/min.
The results of this study were as follows;

  1. The uSBS of Group 1 was the lowest among groups and the uSBS of Group 4 was the highest.

  2. There was not statistically significant interaction between enamel uSBS by application method of Primer and coat time of Bond (p > 0.05).

  3. There was not statistically significant difference between enamel uSBS by passive and active application of Primer (p > 0.05).

  4. There was statistically significant difference between enamel uSBS by one- and two-coat of Bond (p < 0.05).

Keywords: Self-etching primer adhesive, Passive or active application of primer, Coat times of bond, Enamel bond strength

Figures and Tables

Figure 1
Microshear bond testing of specimen.
jkacd-33-90-g001
Table 1
Group classification by application methods of a SEPS
jkacd-33-90-i001

SEPS : self-etching primer adhesive system

Table 2
Group classification by application methods of a SEPS
jkacd-33-90-i002

Group 1: passive application of Primer/1 coat of Bond, Group 2: active application of Primer/1 coat of Bond, Group 3: passive application of Primer/2 coats of Bond, Group 4: active application of Primer/2 coats of Bond.

Table 3
Statistical analysis between passive or active application of Primer by t-test
jkacd-33-90-i003
Table 4
Statistical analysis between one- or two-coat of Bond by t-test
jkacd-33-90-i004

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