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Journal ArticleDOI

Comparative Study on Adhesive Performance of Functional Monomers

TLDR
Besides self-etching dentin, specific functional monomers have additional chemical bonding efficacy that is expected to contribute to their adhesive potential to tooth tissue.
Abstract
Mild self-etch adhesives demineralize dentin only partially, leaving hydroxyapatite around collagen within a submicron hybrid layer. We hypothesized that this residual hydroxyapatite may serve as a receptor for chemical interaction with the functional monomer and, subsequently, contribute to adhesive performance in addition to micro-mechanical hybridization. We therefore chemically characterized the adhesive interaction of 3 functional monomers with synthetic hydroxyapatite, using x-ray photoelectron spectroscopy and atomic absorption spectrophotometry. We further characterized their interaction with dentin ultra-morphologically, using transmission electron microscopy. The monomer 10-methacryloxydecyl dihydrogen phosphate (10-MDP) readily adhered to hydroxyapatite. This bond appeared very stable, as confirmed by the low dissolution rate of its calcium salt in water. The bonding potential of 4-methacryloxyethyl trimellitic acid (4-MET) was substantially lower. The monomer 2-methacryloxyethyl phenyl hydrogen phosphate (phenyl-P) and its bond to hydroxyapatite did not appear to be hydrolytically stable. Besides self-etching dentin, specific functional monomers have additional chemical bonding efficacy that is expected to contribute to their adhesive potential to tooth tissue.

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Journal ArticleDOI

A Critical Review of the Durability of Adhesion to Tooth Tissue: Methods and Results

TL;DR: This paper critically appraises methodologies that focus on chemical degradation patterns of hydrolysis and elution of interface components, as well as mechanically oriented test set-ups, such as fatigue and fracture toughness measurements, to assess adhesion durability.
Journal Article

Buonocore memorial lecture, adhesion to enamel and dentin: current status and future challenges

TL;DR: The basic bonding mechanism to enamel and dentin of these three approaches is demonstrated by means of ultramorphological and chemical characterization of tooth-biomaterial interfacial interactions and confirms that conventional three-step etch&rinse adhesives still perform most favorably and are most reliable in the long-term.
Journal ArticleDOI

Systematic review of the chemical composition of contemporary dental adhesives

TL;DR: The aim of this article is to systematically review the ingredients commonly used in current dental adhesives as well as the properties of these ingredients.
Journal ArticleDOI

Dental adhesion review: Aging and stability of the bonded interface

TL;DR: This study critically discusses the latest peer-reviewed reports related to formation, aging and stability of resin bonding, focusing on the micro and nano-phenomena related to adhesive interface degradation.
Journal ArticleDOI

State of the art of self-etch adhesives

TL;DR: The major shortcomings of the most simple-to-use one-step (self-etch) adhesives are addressed and special attention is devoted to the AD-concept and the benefit of chemical interfacial interaction with regard to bond durability.
References
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Journal Article

Buonocore memorial lecture, adhesion to enamel and dentin: current status and future challenges

TL;DR: The basic bonding mechanism to enamel and dentin of these three approaches is demonstrated by means of ultramorphological and chemical characterization of tooth-biomaterial interfacial interactions and confirms that conventional three-step etch&rinse adhesives still perform most favorably and are most reliable in the long-term.
Journal Article

High resolution XPS of organic polymers

G. Beamson, +1 more
Journal ArticleDOI

The promotion of adhesion by the infiltration of monomers into tooth substrates.

TL;DR: Scanning electron microscopic studies suggested that the monomers possess affinity with the hard tissue as indicated by the good adhesion provided by the interlocking at the tubules.
Journal ArticleDOI

Aggressiveness of contemporary self-etching systems. I: Depth of penetration beyond dentin smear layers.

TL;DR: In this article, the authors examined the aggressiveness of three self-etching adhesive systems in penetrating dentin smear layers of different thickness using transmission electron microscopy (TEM).
Journal Article

Nanoleakage: leakage within the hybrid layer.

TL;DR: The present microscopic study examined the migration of silver nitrate into the interface between dentin and five different dentin bonding agents used to restore class 5 cavities, in the absence of gap formation.
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