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Study on the interface between light-cured glass ionomer base and indirect composite resin inlay and dentin


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Study on the interface between light-cured glass ionomer base and indirect composite resin inlay and dentin

Article information

Restor Dent Endod. 2005;30(3):158-169
Publication date (electronic) : 2005 May 31
doi : https://doi.org/10.5395/JKACD.2005.30.3.158
Song-Hee Lee, Dong-Jun Kim, Yun-Chan Hwang, Won-Mann Oh, In-Nam Hwang
Department of Conservative Dentistry, College of Dentistry, DSRI, Chonnam National University, Korea.
Corresponding author: In-Nam Hwang. Department of Conservative Dentistry, College of Dentistry, Chonnam National University, 8 Hak-dong, Dong-gu, Gwangju, Korea, 501-757. Tel: 82-62-220-4443, Fax: 82-62-225-8387, hinso@jnu.ac.kr
Received 2004 September 06; Revised 2004 October 27; Accepted 2004 November 09.

Abstract

This study was done to evaluate the shear bond strength between light-cured glass ionomer cement (GIC) base and resin cement for luting indirect resin inlay and to observe bonding aspects which is produced at the interface between them by SEM.

Two types of light cured GIC (Fuji II LC Improved, GC Co. Tokyo, Japan and Vitrebond™, 3M, Paul, Minnesota, U.S.A) were used in this study. For shear bond test, GIC specimens were made and immersed in 37℃ distilled water for 1 hour, 24 hours, 1 week and 2 weeks. Eighty resin inlays were prepared with Artglass® (Heraeus Kultzer, Germany) and luted with Variolink® II (Ivoclar Vivadent, Liechtenstein).

Shear bond strength of each specimen was measured and fractured surface were examined. Statistical analysis was done with one-way ANOVA.

Twenty four extracted human third molars were selected and Class II cavities were prepared and GIC based at axiopulpal lineangle. The specimens were immersed in 37℃ distilled water for 1 hour, 24 hours, 1 week and 2 weeks. And then the resin inlays were luted to prepared teeth. The specimens were sectioned vertically with low speed saw. The bonding aspect of the specimens were observed by SEM (JSM-5400®, Jeol, Tokyo, Japan). There was no significant difference between the shear bond strength according to storage periods of light cured GIC base. And cohesive failure was mostly appeared in GIC. On scanning electron micrograph, about 30 - 120 µm of the gaps were observed on the interface between GIC base and dentin. No gaps were observed on the interface between GIC and resin inlay.

Keywords: Shear bond strength; GIC base; Interface; Resin inlay

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Article information Continued

Copyright © 2005 Korean Academy of Conservative Dentistry
(open-access) :

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Figure 1

Figure 1

Comparison of the shear bond strength between light cured glass-ionomer & resin inlay according to storage periods.

Figure 2

Figure 2

SEM image of indirect composite restoration based with Fuji II LC Improved after 1 hour.

A) Original magnification (35 ×)

B) Image of the glass-ionomer base/dentin interface (500 ×)

C) Image of the composite inlay/glass-ionomer base interface (500 ×)

Figure 3

Figure 3

SEM image of indirect composite restoration based with Fuji II LC Improved after 24 hours.

A) Original magnification (35 ×)

B) Image of the glass-ionomer base/dentin interface (500 ×)

C) Image of the composite inlay/glass-ionomer base interface (500 ×)

Figure 4

Figure 4

SEM image of indirect composite restoration based with Fuji II LC Improved after 1 week.

A) Original magnification (35 ×)

B) Image of the glass-ionomer base/dentin interface (500 ×)

C) Image of the composite inlay/glass-ionomer base interface (500 ×)

Figure 5

Figure 5

SEM image of indirect composite restoration based with Fuji II LC Improved after 2 weeks.

A) Original magnification (35 ×)

B) Image of the glass-ionomer base/dentin interface (500 ×)

C) Image of the composite inlay/glass-ionomer base interface (500 ×)

Figure 6

Figure 6

SEM image of indirect composite restoration based with Vitrebond™ after 1 hour.

A) Original magnification (35 ×)

B) Image of the glass-ionomer base/dentin interface (500 ×)

C) Image of the composite inlay/glass-ionomer base interface (500 ×)

Figure 7

Figure 7

SEM image of indirect composite restoration based with Vitrebond™ after 24 hours.

A) Original magnification (35 ×)

B) Image of the glass-ionomer base/dentin interface (500 ×)

C) Image of the composite inlay/glass-ionomer base interface (500 ×)

Figure 8

Figure 8

SEM image of indirect composite restoration based with Vitrebond™ after 1 week.

A) Original magnification (35 ×)

B) Image of the glass-ionomer base/dentin interface (500 ×)

C) Image of the composite inlay/glass-ionomer base interface (500 ×)

Figure 9

Figure 9

SEM image of indirect composite restoration based with Vitrebond™ after 2 weeks.

A) Original magnification (35 ×)

B) Image of the glass-ionomer base/dentin interface (500 ×)

C) Image of the composite inlay/glass-ionomer base interface (500 ×)

Abbreviation

RI: resin inlay

G: glass-ionomer cement

D: dentin

Table 1

Materials used in this study

Table 1

Table 2

Adhesion procedure of Variolink® II

Table 2

Table 3

Shear bond strength between resin inlay and Fuji II LC (Mean ± S.D, n = 10)

Table 3

Table 4

Shear bond strength between resin inlay and Vitrebond™ (Mean ± S.D, n = 10)

Table 4

Table 5

Failure mode in each group (n = 10)

Table 5