J Korean Acad Conserv Dent.  2008 Mar;33(2):90-97. 10.5395/JKACD.2008.33.2.090.

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

• Park JG
• Cho KH
• Cho YG

• KMID: 1986753
• DOI: http://doi.org/10.5395/JKACD.2008.33.2.090

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).

Keyword

Self-etching primer adhesive; Passive or active application of primer; Coat times of bond; Enamel bond strength

MeSH Terms

Adhesives
Crowns
Dental Enamel
Humans
Methacrylates
Molar
Adhesives
Methacrylates

Figure

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  Figure 1 Microshear bond testing of specimen.

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