Microshear bond strength of a self-etching primer adhesive to enamel according to the type of bur

Jin-Ho Jeong; Young-Gon Cho; Myung-Seon Lee

doi:10.5395/JKACD.2011.36.6.477

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Basic Research Microshear bond strength of a self-etching primer adhesive to enamel according to the type of bur: Jin-Ho Jeong, DDS, PhD¹, Young-Gon Cho, DDS, MSD, PhD¹, Myung-Seon Lee, RDH²; Journal of Korean Academy of Conservative Dentistry 2011;36(6):477-482.
DOI: https://doi.org/10.5395/JKACD.2011.36.6.477
Published online: November 30, 2011

¹Department of Conservative Dentistry, Chosun University School of Dentistry, Gwangju, Korea.

²Department of Dental Hygiene, SeoYeong University, Gwangju, Korea.

Correspondence to Young-Gon Cho, DDS, MSD, PhD. Professor, Department of Conservative Dentistry, Chosun University School of Dentistry, 421 Seosuk-dong, Dong-gu, Gwangju, Korea 501-825. Tel, +82-62-220-3845; Fax, +82-62-223-9064; ygcho@mail.ac.kr

• Received: July 29, 2011 • Revised: September 19, 2011 • Accepted: September 26, 2011

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Abstract
REFERENCES

Abstract

Objectives
The purpose of this study was to compare the microshear bond strength (uSBS) to enamel prepared with different burs and to determine what type of bur were chosen when a self-etching primer adhesive was used.
Materials and Methods
Enamel of forty-two human molars were used. They were divided into one of six groups (n = 7), Group 1, coarse (125 - 150 µm) diamond bur; Group 2, standard (106 - 125 µm) diamond bur; Group 3, fine (53 - 63 µm) diamond bur; Group 4, extrafine (20 - 30 µm) diamond bur; Group 5, plain-cut carbide bur (no. 245); Group 6, cross-cut carbide bur (no. 557). Clearfil SE Bond and Clearfil AP-X (Kuraray Medical Inc.) was bonded to enamel surface. The bonded specimens were subjected to uSBS testing.
Results
The uSBS of Group 4 was the highest among groups and it was significantly higher than that of Groups 1, 2, 3, and 6 (p < 0.05), but it was not significantly different from that of Group 5.
Conclusions
Different burs used on enamel surface affected the microshear bond strengths of a self-etching primer adhesive to the enamel surface. In the case of Clearfil SE Bond, extrafine diamond and plain-cut carbide bur are recommended for bonding to enamel.
Keywords: Bond strength; Enamel; Self-etching primer adhesive; Type of bur

REFERENCES

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Table 1

Burs used in each experimental group

( ): grit size of diamond bur.

Table 2

Mean microshear bond strength (MPa) to enamel surface

Superscripts of the other letter indicate values of statistically significant difference (p < 0.05) by one-way ANOVA and Tukey HSD statistics.

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Microshear bond strength of a self-etching primer adhesive to enamel according to the type of bur

J Korean Acad Conserv Dent. 2011;36(6):477-482. Published online November 30, 2011

DOI: https://doi.org/10.5395/JKACD.2011.36.6.477

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Microshear bond strength of a self-etching primer adhesive to enamel according to the type of bur

Table 1

Burs used in each experimental group

( ): grit size of diamond bur.

Table 2

Mean microshear bond strength (MPa) to enamel surface

Superscripts of the other letter indicate values of statistically significant difference (p < 0.05) by one-way ANOVA and Tukey HSD statistics.

Table 1 Burs used in each experimental group

( ): grit size of diamond bur.

Table 2 Mean microshear bond strength (MPa) to enamel surface

Superscripts of the other letter indicate values of statistically significant difference (p < 0.05) by one-way ANOVA and Tukey HSD statistics.