J Korean Acad Conserv Dent.  2004 May;29(3):233-238. 10.5395/JKACD.2004.29.3.233.

The effect of delayed composite resin filling on microtensile bond strength

• Park HS
• Cho YG
• Park BC
• Kim JU
• Choi HY
• Kim JJ
• Jin CH
• Yoo SH
• Ki YJ

• KMID: 1987099
• DOI: http://doi.org/10.5395/JKACD.2004.29.3.233

Abstract

The purpose of this study was to evaluate the effect of immediate or delayed composite resin filling on dentinal microtensile bond strength (microTBS) after applied the adhesive. The coronal dentin of human third molars was exposed. Single-Bond or One-Step was applied on the dentin surfaces, and composite resin were constructed immediately (group 1) or 5 min., 10 min., 15 min., 20 min. and 30 min. (groups 2-6) after an adhesive was applied. The specimens were sectioned and made bar-shaped. Each surface area of them was about 1mm2. The microTBS test was performed by EZ test. The results were analysed by One-way ANOVA and Tukey's test at 95% significance level. The results suggested that the microTBS of Single-Bond to dentin was decreased when the composite resin was constructed 20 min. and 30 min. after Single-Bond was applied. But the microTBS of One-Step was not affected by delayed composite resin filling.

Keyword

Immediate resin filling; Delayed resin filling; Microtensile bond strength; Adhesive; Coronal dentin; Bar-shaped

MeSH Terms

Adhesives
Dentin
Humans
Molar, Third
Adhesives

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