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

Tae-Woo Kim; Bin-Na Lee; Young-Jung Choi; So-Young Yang; Hoon-Sang Chang; Yun-Chan Hwang; In-Nam Hwang; Won-Mann Oh

doi:10.5395/JKACD.2011.36.5.419

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Kim, Lee, Choi, Yang, Chang, Hwang, Hwang, and Oh: Microtensile bond strength of resin inlay bonded to dentin treated with various temporary filling materials

Basic Research

Journal of Korean Academy of Conservative Dentistry

Journal of Korean Academy of Conservative Dentistry 2011; 36(5): 419-424.

Published online: 30 September 2011

DOI: https://doi.org/10.5395/JKACD.2011.36.5.419

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

Tae-Woo Kim, DDS, MS¹, Bin-Na Lee, DDS¹, Young-Jung Choi, DDS¹, So-Young Yang², Hoon-Sang Chang, DDS, PhD¹, Yun-Chan Hwang, DDS, PhD¹, In-Nam Hwang, DDS, PhD¹, Won-Mann Oh, DDS, PhD¹

graduate student

PhD student

Assistant Professor

Associate Professor

Professor

¹Department of Conservative Dentistry, Chonnam National University School of Dentistry, Gwangju, Korea.

²Depatment of Oral Anatomy, Chonnam National University School of Dentistry, Gwangju, Korea.

Correspondence to Won-Mann Oh, DDS, PhD. Professor, Department of Conservative Dentistry, Chonnam National University School of Dentistry, Youngbong-ro 77, Buk-gu, Gwangju, Korea 500-757. Tel, +82-62-530-5572; Fax, +82-62-530-5629; wmoh@chonnam.ac.kr

Received 14 July 2011 Revised 29 August 2011 Accepted 29 August 2011

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.

Keywords: Immediate dentin sealing, Microtensile bond strength, Resin inlay

Figures and Tables

Figure 1

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

Table 1

Experimental groups and procedures

ZOE, zinc oxide eugenol; DDS, delayed dentin sealing; IDS, immediate dentin sealing.

Table 2

Microtensile bond strength

Mean values followed by the same superscript letter were not significantly different at p = 0.01 level according to multiple Duncan's test.

SD, standard deviation; DDS, delayed dentin sealing; IDS, immediate dentin sealing.

Notes

Conflict of Interest: No potential conflict of interest relevant to this article was reported.

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