Hardness and elasticity of sound and caries-affected primary dentin bonded with one-step self-etch adhesive.

Hardness and elasticity of sound and caries-affected primary dentin bonded with one-step self-etch adhesive. Research Abstract Details 

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Hardness and elasticity of sound and caries-affected primary dentin bonded with one-step self-etch adhesive. Abstract Text:

Yumiko Hosoya,Franklin R Tay,Masashi Miyazaki,Takashi Inoue,

Biomechanical properties of bonded dentin are important for resin restorations. We hypothesized that there are no differences in the hardness and elasticity of sound and caries-affected primary dentin bonded with a one-step self-etch adhesive. Resin-dentin interfaces in sound and caries-affected primary dentin were measured with a nano-indentation tester and observed with SEM and TEM. Interfacial dentin hardness was similar for sound and caries-affected dentin, but significantly lower than the underlying intact dentin. As for the Young's modulus of interfacial dentin, both substrates exhibited significantly lower values than the subsurface dentin. Further, the Young's modulus of interfacial dentin was significantly lower in caries-affected dentin. TEM revealed extensive interfacial nanoleakage in bonded sound dentin, while it was minimal in bonded caries-affected dentin. However, in the latter, silver deposits were identified within the porous substrate. Shorter application time and/or improvement of the adhesive components may be required to obtain stable adhesion in primary dentin.

Hardness and elasticity of sound and caries-affected primary dentin bonded with one-step self-etch adhesive. Publishing Authors By Initials

Y Hosoya,FR Tay,M Miyazaki,T Inoue,

For similar natural sciences: time: time factors research abstracts see: natural sciences: time: time factors research

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Hardness and elasticity of sound and caries-affected primary dentin bonded with one-step self-etch adhesive. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Dental materials journal

VOLUME: 26

Page Numbers: 493-500

Journal Abbreviation:

ISSN: 0287-4547

DAY: 28

MONTH: Jul

YEAR: 2007

Hardness and elasticity of sound and caries-affected primary dentin bonded with one-step self-etch adhesive. Information

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LANGUAGE: eng

NlmUniqueID: 8309299

Hardness and elasticity of sound and caries-affected primary dentin bonded with one-step self-etch adhesive. Keywords Mesh Terms:

KEYWORDS: Time Factors

MESH TERMS: chemistry

Chemical & Substance for Abstract: Hardness and elasticity of sound and caries-affected primary dentin bonded with one-step self-etch adhesive. Information

Substance Name: Dentin-Bonding Agents

Registry Number: 0

Grant and Affiliation Information for Hardness and elasticity of sound and caries-affected primary dentin bonded with one-step self-etch adhesive.

AFFILIATION: Department of Pediatric Dentistry, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1, Sakamoto, Nagasaki 852-8588, Japan. hosoya@nagasaki-u.ac.jp

Country: Japan

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MEDLINETA: Dent Mater J

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