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

Affiliations
  • 1Department of Conservative Dentistry, Chonnam National University School of Dentistry, Gwangju, Korea. wmoh@chonnam.ac.kr
  • 2Depatment of Oral Anatomy, Chonnam National University School of Dentistry, Gwangju, Korea.

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
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