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Effects of barriers on chemical and biological properties of two dual resin cements
Author(s) -
Nocca Giuseppina,
Iori Andrea,
Rossini Carlo,
Martorana Giuseppe E.,
Ciasca Gabriele,
Arcovito Alessandro,
Cordaro Massimo,
Lupi Alessandro,
Marigo Luca
Publication year - 2015
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/eos.12178
Subject(s) - polymerization , monomer , curing (chemistry) , materials science , adhesive , composite material , composite number , ceramic , cement , pulp (tooth) , polymer , chemistry , chemical engineering , dentistry , medicine , layer (electronics) , engineering
The aim of this study was to investigate the degree of conversion, monomer release, and cytotoxicity of two dual‐cure resin cements (Cement‐One and SmartCem2), light‐cured across two indirect restorative materials in an attempt to simulate in vitro the clinical conditions. The results obtained show that the degree of conversion was influenced by both barriers, but the effect of the composite material was greater than that of the ceramic one. The amount of monomers released from the polymerized materials in the absence of barriers was significantly lower than that released in the presence of either the ceramic or the composite barrier. However, a higher amount of monomers was released in the presence of the ceramic barrier. All materials, in all the experimental conditions employed, induced slight cytotoxicity (5–10%) on human pulp cells. Our examinations showed that the two resin cements had similar chemical and biological properties. The decreased degree of conversion of the dual‐curing self‐adhesive composite showed that the light‐curing component of these materials has an important role in the polymerization process. In clinical practice, it is therefore important to pay attention to the thickness of the material used for the reconstruction.