Potential role of surface wettability on the long-term stability of dentin bonds after surface biomodification

Ariene A Leme; Cristina M P Vidal; Lina Saleh Hassan; Ana K Bedran-Russo

doi:10.1016/j.jbiomech.2015.03.016

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Potential role of surface wettability on the long-term stability of dentin bonds after surface biomodification

Journal article

Peer reviewed

Potential role of surface wettability on the long-term stability of dentin bonds after surface biomodification

Ariene A Leme, Cristina M P Vidal, Lina Saleh Hassan and Ana K Bedran-Russo

Journal of biomechanics, Vol.48(10), pp.2067-2071

07/16/2015

DOI: 10.1016/j.jbiomech.2015.03.016

PMCID: PMC4492827

PMID: 25869721

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Abstract

Degradation of the adhesive interface contributes to the failure of resin composite restorations. The hydrophilicity of the dentin matrix during and after bonding procedures may result in an adhesive interface that is more prone to degradation over time. This study assessed the effect of chemical modification of the dentin matrix on the wettability and the long-term reduced modulus of elasticity (Er) of adhesive interfaces. Human molars were divided into groups according to the priming solutions: distilled water (control), 6.5% Proanthocyanidin-rich grape seed extract (PACs), 5.75% 1-ethyl-3-[3-dimethylaminopropyl] carbodiimide hydrochloride/1.4% n-hydroxysuccinimide (EDC/NHS) and 5% Glutaraldehyde (GA). The water-surface contact angle was assessed before and after chemical modification of the dentin matrix. The demineralized dentin surface was treated with the priming solutions and restored with One Step Plus (OS) and Single Bond Plus (SB) and resin composite. Er of the adhesive, hybrid layer and underlying dentin was evaluated after 24h and 30 months in artificial saliva. The dentin hydrophilicity significantly decreased after application of the priming solutions. Aging significantly decreased Er in the hybrid layer and underlying dentin of control groups. Er of GA groups remained stable over time at the hybrid layer and underlying dentin. Significant higher Er was observed for PACs and EDC/NHS groups at the hybrid layer after 24h. The decreased hydrophilicity of the modified dentin matrix likely influence the immediate mechanical properties of the hybrid layer. Dentin biomodification prevented substantial aging at the hybrid layer and underlying dentin after 30 months storage.

Dentin - chemistry

Humans

Composite Resins - chemistry

Elasticity

Molar

Materials Testing - methods

Wettability

Adhesives

Denture Retention

Time Factors

Surface Properties

Hydrophobic and Hydrophilic Interactions

Dental Bonding - methods

Details

Title: Subtitle: Potential role of surface wettability on the long-term stability of dentin bonds after surface biomodification
Creators: Ariene A Leme - Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL 60612, USA
Cristina M P Vidal - Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL 60612, USA
Lina Saleh Hassan - Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL 60612, USA
Ana K Bedran-Russo - Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL 60612, USA. Electronic address: bedran@uic.edu
Resource Type: Journal article
Publication Details: Journal of biomechanics, Vol.48(10), pp.2067-2071
DOI: 10.1016/j.jbiomech.2015.03.016
PMID: 25869721
PMCID: PMC4492827
NLM abbreviation: J Biomech
ISSN: 0021-9290
eISSN: 1873-2380
Publisher: United States
Grant note: K08 DE017740 / NIDCR NIH HHS\nDE17740 / NIDCR NIH HHS\nR01 DE021040 / NIDCR NIH HHS
Language: English
Date published: 07/16/2015
Academic Unit: Operative Dentistry
Record Identifier: 9984065994002771

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