Erschienen in:
01.12.2015 | Dental Restorative Materials (F Ozer Section Editor)
Long-Term Durability of Dental Adhesives
verfasst von:
A. Tezvergil-Mutluay, D. Pashley, M. M. Mutluay
Erschienen in:
Current Oral Health Reports
|
Ausgabe 4/2015
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Abstract
The use of tooth-colored dental restorative materials, along with the adhesive techniques, has become routine in today’s dental practice. The longevity of adhesive restorations depends mainly on good bonding between restorative materials and tooth structure, which should be achieved in situ, within minutes. While bonding to enamel is reliable through micromechanical retention, bonding to dentin presents challenges due to its more complex collagenous structure. Progressive loss of resin-dentin bond integrity and reduction in bond strength have been extensively reported. This was attributed partly to the hydrophilic nature of the contemporary adhesives systems that causes unwanted water absorption, phase separation, and resin leaching and also to the endogenous collagenolytic enzymes that can slowly hydrolyze collagen. Current research in this field aims at increasing the durability of resin-dentin bonds by inhibition of the collagenolytic activity of dentin, as well as implementing bonding strategies which allow the use of more hydrophobic bonding agents.