J Korean Acad Conserv Dent.  2011 May;36(3):203-210. 10.5395/JKACD.2011.36.3.203.

Influence of application methods of one-step self-etching adhesives on microtensile bond strength

• Choi CK
• Son SA
• Ha JH
• Hur B
• Kim HC
• Kwon YH
• Park JK

• KMID: 1986684
• DOI: http://doi.org/10.5395/JKACD.2011.36.3.203

Abstract

OBJECTIVES
The purpose of this study was to evaluate the effect of various application methods of one-step self-etch adhesives to microtensile resin-dentin bond strength.
MATERIALS AND METHODS
Thirty-six extracted human molars were used. The teeth were assigned randomly to twelve groups (n = 15), according to the three different adhesive systems (Clearfil Tri-S Bond, Adper Prompt L-Pop, G-Bond) and application methods. The adhesive systems were applied on the dentin as follows: 1) The single coating, 2) The double coating, 3) Manual agitation, 4) Ultrasonic agitation. Following the adhesive application, light-cure composite resin was constructed. The restored teeth were stored in distilled water at room temperature for 24 hours, and prepared 15 specimens per groups. Then microtensile bond strength was measured and the failure mode was examined.
RESULTS
Manual agitation and ultrasonic agitation of adhesive significantly increased the microtensile bond strength than single coating and double coating did. Double coating of adhesive significantly increased the microtensile bond strength than single coating did and there was no significant difference between the manual agitation and ultrasonic agitation group. There was significant difference in microtensile bonding strength among all adhesives and Clearfil Tri-S Bond showed the highest bond strength.
CONCLUSIONS
In one-step self-etching adhesives, there was significant difference according to application methods and type of adhesives. No matter of the material, the manual or ultrasonic agitation of the adhesive showed significantly higher microtensile bond strength.

Keyword

Adhesive application methods; Microtensile bond strength; One-step self-etching adhesives

MeSH Terms

Adhesives
Dentin
Dihydroergotamine
Humans
Molar
Resin Cements
Tooth
Ultrasonics
Water
Adhesives
Dihydroergotamine
Resin Cements
Water

Figure

• 

  Figure 1 Groups used in this study are noted according to the type of adhesive and application methods.

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