Effect of epigallocatechin-3-gallate to self-ectching adhisive to the bonding strengh of caries-affected dentin

doi:10.3877/cma.j.issn.1674-1366.2015.04.007

Abstract

Abstract:

Objective

To explore the effect of the modified Epigallocatechin-3-Gallate(EGCG)on self-etch Clearfil SE Bond bonding strength to caries-affected dentin.

Methods

Twenty extracted human teeth with medial coronal carious lesions extending into middle dentin were used. The softened carious dentin was removed by Caries Marker. EGCG was incorporated at a ratio of 100, 200, and 300 μg/ml into water solution and a dental adhesive, Clear SE Bond. Caries-affected dentin was treated with EGCG water solution for 24 hours before micro-hardness test. And Microtensile bond strength(μTBS)test was used to evaluate the bonding strength to caries-affected dentin treated by Clearfil SE Bond with different EGCG concentration. Statistics analysis software SPSS 22.0 was used to evaluate the difference by One-Way ANOVA.

Result

Micro-hardness and bonding strength of caries-affected dentin are both significantly increased when treated with EGCG(F_{bonding strength}=24.554, P_{bonding strength} < 0.05; F_{micro-hardness}=20.418, P_{micro-hardness} < 0.05).

Conclusion

EGCG can significantly increase the micro-hardness and bonding strength of caries-affected dentin.

Key words: Epigallocatechin-3-gallate, Caries-affected dentin, Bonding strength, Micro-hardness

Xiaolong Li, Feng Qin, Yu Qian, Yingzhu Yin, Tao Luo, Xueqing Huang. Effect of epigallocatechin-3-gallate to self-ectching adhisive to the bonding strengh of caries-affected dentin[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2015, 09(04): 295-300.

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References 28

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组别	微拉伸强度
对照组	24.28 ± 2.86
EGCG 100 μg/ml组	30.15 ± 2.92^a
EGCG 200 μg/ml组	36.95 ± 4.02^ab
EGCG 300 μg/ml组	37.44 ± 6.60^ab

组别	微拉伸强度
对照组	24.28 ± 2.86
EGCG 100 μg/ml组	30.15 ± 2.92^a
EGCG 200 μg/ml组	36.95 ± 4.02^ab
EGCG 300 μg/ml组	37.44 ± 6.60^ab

组别	显微硬度
对照组	54.89 ± 5.10
EGCG 100 μg/ml组	61.80 ± 3.30^a
EGCG 200 μg/ml组	69.47 ± 6.06^ab
EGCG 300 μg/ml组	70.13 ± 3.29^ab

组别	显微硬度
对照组	54.89 ± 5.10
EGCG 100 μg/ml组	61.80 ± 3.30^a
EGCG 200 μg/ml组	69.47 ± 6.06^ab
EGCG 300 μg/ml组	70.13 ± 3.29^ab

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