J Korean Acad Conserv Dent.  2011 Sep;36(5):419-424. 10.5395/JKACD.2011.36.5.419.

Microtensile bond strength of resin inlay bonded to dentin treated with various temporary filling materials

• Kim TW
• Lee BN
• Choi YJ
• Yang SY
• Chang HS
• Hwang YC
• Hwang IN
• Oh WM

• KMID: 2176579
• DOI: http://doi.org/10.5395/JKACD.2011.36.5.419

Abstract

OBJECTIVES
This study was aimed to determine the effects of temporary sealing materials on microtensile bond strength between resin-coated dentin and resin inlay and to compare the bonding effectiveness of delayed dentin sealing and that of immediate dentin sealing.
MATERIALS AND METHODS
The teeth were divided into 4 groups: group 1, specimens were prepared using delayed dentin sealing after temporary sealing with zinc oxide eugenol (ZOE); group 2, specimens were prepared using immediate dentin sealing and ZOE sealing; group 3, specimens were prepared using immediate dentin sealing and Dycal (Dentsply) sealing; group 4, specimens were prepared using immediately sealed, and then temporarily sealed with a resin-based temporary sealing material. After removing the temporary sealing material, we applied resin adhesive and light-cured. Then the resin inlays were applied and bonded to the cavity with a resin-based cement. The microtensile bond strength of the sectioned specimens were measured with a micro-tensile tester (Bisco Inc.). Significance between the specimen groups were tested by means of one-way ANOVA and multiple Duncan's test.
RESULTS
Group 1 showed the lowest bond strength, and group 4 showed the highest bond strength (p < 0.01). When temporary sealing was performed with ZOE, immediate dentin sealing showed a higher bonding strength than delayed dentin sealing (p < 0.01).
CONCLUSIONS
Based on these results, immediate dentin sealing is more recommended than delayed dentin sealing in bonding a resin inlay to dentin. Also, resin-based temporary sealing materials have shown the best result.

Keyword

Immediate dentin sealing; Microtensile bond strength; Resin inlay

MeSH Terms

Adhesives
Calcium Hydroxide
Dentin
Eugenol
Inlays
Minerals
Tooth
Zinc Oxide
Adhesives
Calcium Hydroxide
Eugenol
Minerals
Zinc Oxide

Figure

• 

  Figure 1 Diagram of microtensile bond strength measured. ZOE, zinc oxide eugenol; DDS, delayed dentin sealing; IDS, immediate dentin sealing.

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