References

JKACD

Journal of Korean Academy of Conservative Dentistry

J Korean Acad Conserv Dent

1225-0864 2093-8179

The Korean Academy of Conservative Dentistry

10.5395/JKACD.2004.29.1.1

jkacd-29-1

Original Article

The comparison on micro-tensile bond strengths of variable adhesive systems to Class V cavity

Kwon

Jung-Mi

Choi

Kyung-Kyu

Park

Sang-Jin

Department of Conservative Dentistry, Division of Dentistry, Graduate School of Kyung Hee University

Corresponding author: Sang-Jin Park, Dept. of Conservative Dentistry, Division of Dentistry, Graduated School of Kyung Hee University 1, Hoegi Dong, Dongdaemoon Gu, Seoul, 130-702, Korea, Tel : 02) 958-9335, E-mail : psangjin@khu.ac.kr

012004

14012004

29 1 1 12

2004

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.

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Figures and Tables Fig. 1.

Specimen preparation for tensile bonding test: A) cavity preparation on buccal cervical area, B) adhesive systems bonding and restoration, additional composite build-up, C) vertical slice with 1mm thickness, D) trimmed specimen with hour glass shape.

Fig. 2.

Micro-tensile Bond Strengths : Occlusal wall

Fig. 3.

Micro-tensile Bond Strengths : Gingival wall

Fig. 4.

Micro-tensile Bond Strengths of occlusal and gingival wall

Fig. 5A.

SEM photograph of the adhesive interface of the GI group on the occlusal wall.

Fig. 5B.

SEM photograph of the adhesive interface of the GI group on the gingival wall.

Fig. 6A.

SEM photograph of the adhesive interface of the DE group on the occlusal wall.

Fig. 6B.

SEM photograph of the adhesive interface of the DE group on the gingival wall.

Fig. 7A.

SEM photograph of the adhesive interface of the DN group on the occlusal wall.

Fig. 7B.

SEM photograph of the adhesive interface of the DN group on the gingival wall.

Fig. 8A.

SEM photograph of the adhesive interface of the SE group on the occlusal wall.

Fig. 8B.

SEM photograph of the adhesive interface of the SE group on the gingival wall.

Fig. 9A.

SEM photograph of the adhesive interface of the SB group on the occlusal wall.

Fig. 9B.

SEM photograph of the adhesive interface of the SB group on the gingival wall.

Table 1.

Materials used in this study

Products		Main Components	Manufacturer
Resin modified glass ionomer
Fuji Ⅱ LC		fluoroaluminum silicate glass,	GC Co.
		polyacrylic acid, HEMA	(Tokyo, Japan)
Dentin Conditioner		20% polyacrylic acid with 3% AlCl3
Compomer
Dyract AP		resin, strontium-fluoro silicate glass
Prime & Bond NT	Etchant	36% Phosphoric acid	Dentsply Caulk
	Adhesive	UDMA, PENTA, nanofiller, acetone, trimethacrylate resin	(Milford, USA)
Non Rinse Conditioner		itaconic acid, maleic acid
Self-etching system
Clearfil SE Bond	Primer	MDP, HEMA, water	Kuraray Co.
	Adhesive	dimethacrylate, microfiller, MDP, HEMA	(Osaka, Japan)
Self-priming system
Single Bond	Etchant	37% Phosphoric acid	3M Co.
	Adhesive	HEMA, Bis-GMA, ethanol, water	(St. Paul, MN,
		Polyalkenoic acid copolymer	USA)
Resin composite
Clearfil AP-X		Barium glass, silicone dioxide,	Kuraray Co.
		3.0§(0.1~15§), 84.5wt％	(Osaka, Japan)

Bis-GMA=Bisphenol-A glycidyl methacrylate

HEMA=Hydroxyethylmethacrylate

MDP=methacryloyloxydecyl dihydrogen phosphate

Table 2.

Five experimental groups

Group	Materials
GI	Fuji Ⅱ LC	Dentin Conditioner
DE	Dyract AP	Prime&Bond NT(with Etching)
DN	Dyract AP	Prime&Bond NT(with NRC)
SE	Clearfil AP-X	Clearfil SE Bond
SB	Clearfil AP-X	Single Bond

Table 3.

Micro-tensile bond strength of experimental groups (Unit : MPa±SD)

Group	Occlusal wall	Gingival wall
GI	23.27± 8.63^a	15.09± 5.10^a
DE	29.84±10.54^ab	16.52± 4.14^a
DN	29.63± 9.94^abA	22.53±11.90^abA
SE	36.34±11.11^b	27.51± 7.99^b
SB	36.47±13.39^bA	30.20±12.40^bA

Mean values with the same uppercase and lowercase superscript letters are not statistically different(p>0.05).