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

Article information

Restor Dent Endod. 2011;36(5):419-424

Publication date (electronic) : 2011 September 30

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

Tae-Woo Kim, DDS, MS ¹, Bin-Na Lee, DDS ¹, Young-Jung Choi, DDS ¹, So-Young Yang ², Hoon-Sang Chang, DDS, PhD ¹, Yun-Chan Hwang, DDS, PhD ¹, In-Nam Hwang, DDS, PhD ¹, Won-Mann Oh, DDS, PhD ¹

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 2011 July 14; Revised 2011 August 29; Accepted 2011 August 29.

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

Notes

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

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Article information Continued

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.