Improved efficacy of dentin-bonding agents

Dentin cavities, prepared in extracted human teeth, were treated with various proprietary dentin‐bonding agents and then filled with a light‐cured restorative resin for posterior use. All bonding agents were either treated in accordance with the manufacturers' instructions or combined with Glum...

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Bibliographic Details
Published in:European journal of oral sciences 1997-10, Vol.105 (5P1), p.434-439
Main Authors: Hansen, Erik Keith, Asmussen, Erik
Format: Article
Language:English
Subjects:
Acrylic Resins - chemistry
Aluminum Silicates - chemistry
Bisphenol A-Glycidyl Methacrylate - chemistry
Chemical Phenomena
Chemistry, Physical
Collagen - chemistry
Composite Resins
Cross-Linking Reagents - chemistry
Dental Bonding
dental cavity
Dental Marginal Adaptation
Dentin - ultrastructure
dentin-bonding
Dentin-Bonding Agents - chemistry
Dentistry
Glutaral - chemistry
Humans
Methacrylates - chemistry
operative dentistry
Polymers - chemistry
Polymethacrylic Acids - chemistry
Resin Cements - chemistry
Resins, Synthetic - chemistry
restorative resins
Silicon Dioxide - chemistry
Surface Properties
Zirconium - chemistry
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Summary:Dentin cavities, prepared in extracted human teeth, were treated with various proprietary dentin‐bonding agents and then filled with a light‐cured restorative resin for posterior use. All bonding agents were either treated in accordance with the manufacturers' instructions or combined with Gluma, which is an aqueous solution of glutaraldehyde and HEMA, a hydrophilic monomer. 10 min after polymerization, the width and the extent of the marginal contraction gap was measured approximately 0.1 mm below the free surface of the filling, using a light microscope. With nearly all dentin‐bonding agents, the marginal contraction gap could be significantly reduced if Gluma was used after conditioning of the dentin. The reason for this improvement may be that glutaraldehyde cross‐links the collagen fibers and thereby strengthens the organic part of the hybrid layer, however, other mechanisms might also play a role in the improvement found.
ISSN:0909-8836
1600-0722
DOI:10.1111/j.1600-0722.1997.tb02140.x