Title: The interaction of adhesive systems with human dentin
Authors: Perdigão, J ×
Lambrechts, Paul
Van Meerbeek, Bart
Braem, M
Yildiz, E
Yücel, T
Vanherle, Guido #
Issue Date: Aug-1996
Series Title: American Journal of Dentistry vol:9 issue:4 pages:167-73
Abstract: PURPOSE: To investigate the interaction of six experimental and commercial bonding systems with dentin in vivo. MATERIALS AND METHODS: One-Step, Clearfil Liner Bond 2, OptiBond, Permagen with 10% phosphoric acid, Permagen with 35% phosphoric acid, and Prime & Bond were applied in standard Class I occlusal cavities in premolars scheduled for extraction for orthodontic reasons, combined either with a self-cured or with a light-cured resin composite. The teeth were carefully extracted 5 minutes after resin polymerization and fixed in 2.5% glutaraldehyde. After fixation, the specimens were dehydrated, sectioned, and processed for field-emission SEM. RESULTS: Although some systems produced gap-free intact interfaces in specific specimens, all of them showed detachment at the transition between the resin-dentin interdiffusion zone and the fluid resin placed over it. It was apparent that the presence of air-bubbles and/or thick layers of polymerized-filled fluid resin resulted in less frequent separation areas at the resin-dentin interface, providing support for the concept of the elastic cavity wall. It was also confirmed that some dentin adhesive systems do not form a thick layer over the dentin, otherwise the resin composite would not have penetrated the dentin tubules.
ISSN: 0894-8275
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Biomaterials - BIOMAT
× corresponding author
# (joint) last author

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