Comparative evaluation of micro-shear bond strength between two different luting methods of resin cement to dentin

Article information

Restor Dent Endod. 2005;30(4):283-293

Publication date (electronic) : 2005 January 14

doi : https://doi.org/10.5395/JKACD.2005.30.4.283

Yoon-Jeong Lee , Sang-Jin Park , Kyoung-Kyu Choi ^,

Department of Conservative Dentistry, Division of Dentistry, Graduate School, Kyunghee University

^*Corresponding author: Kyoung-Kyu Choi, Dept. of Conservative Dentistry, Division of Dentistry, Graduate School, Kyunghee University 1, Hoegi Dong, Dongdaemoon Gu, Seoul, Korea, 130-702, Tel: 82-2-958-9337 E-mail: choikkyu@khu.ac.kr

Received 2004 September 21; Revised 2005 April 06; Accepted 2005 April 14.

Abstract

ABSTRACT

The purpose of this study was to evaluate the effect of dual bonding technique by comparing micro-shear bond strength between two different luting methods of resin cement to tooth dentin. Three dentin bonding systems(All-Bond 2, One-Step, Clearfil SE Bond), two temporary cements (Propac, Freegenol) were used in this study.

In groups used conventional luting procedure, dentin surfaces were left untreated. In groups used dual bonding technique, three dentin bonding systems were applied to each dentin surface. All specimens were covered with each temporary cement. The temporary cements were removed and each group was treated using one of three different dentin bonding system. A resin cement was applied to the glass cylinder surface and the cylinder was bonded to the dentin surface. Then, micro-shear bond strength test was performed. For the evaluation of the morphology at the resin/dentin interface, SEM examination was also performed.

Conventional luting procedure showed higher micro-shear bond strengths than dual boning technique. However, there were no significant differences.
Freegenol showed higher micro-shear bond strengths than Propac, but there were no significant differences.
In groups used dual bonding technique, SE Bond showed significantly higher micro-shear bond strengths in One-Step and All-Bond 2 (p < 0.05), but there was no significant difference between One-Step and All-Bond 2.
In SEM observation, with the use of All-Bond 2 and One-Step, very long and numerous resin tags were observed. This study suggests that there were no findings that the dual bonding technique would be better than the conventional luting procedure.

Keywords: Dual bonding technique; Resin cement; Conventional luting procedure; Micro-shear bond strength

Figure 1.

Micro-shear bond strengths of luting method according to dentin bonding system.

Figure 2.

Micro-shear bond strengths of dentin bonding system according to luting method.

Figure 3.

SEM photograph of the adhesive interface of CPA group (×1500).

Figure 4.

SEM photograph of the adhesive interface of CPO group (×1500).

Figure 5.

SEM photograph of the adhesive interface of CPS group (×1500).

Figure 6.

SEM photograph of the adhesive interface of CFA group (×1500).

Figure 7.

SEM photograph of the adhesive interface of CFO group (×1500).

Figure 8.

SEM photograph of the adhesive interface of CFS group (×1500).

Figure 9.

SEM photograph of the adhesive interface of DPA group (×1500).

Figure 10.

SEM photograph of the adhesive interface of DPO group (×1500).

Figure 11.

SEM photograph of the adhesive interface of DPS group (×1500).

Figure 12.

SEM photograph of the adhesive interface of DFA group (×1500).

Figure 13.

SEM photograph of the adhesive interface of DFO group (×1500).

Figure 14.

SEM photograph of the adhesive interface of DFS group (×1500).

Table 1.

Materials used in this study

Table 2.

Experimental groups classified by luting methods, temporary cement, and dentin bonding system

Table 3.

Application manner of Dentin Bonding System (DBS)

Table 4.

Micro-shear bond strength of experimental group (Unit: ㎫, Mean ± S.D.)

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