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Wear and Marginal Breakdown of Composites with Various Degrees of Cure
This study showed that the resistance to abrasive wear of a dental composite could be improved by enhancement of its degree of conversion.
Evaluation of Subsurface Defects Created During the Finishing of Composites
Testing the hypothesis that a degraded subsurface layer containing microcracks is produced in dental composites as a result of finishing procedures showed that only a very limited subsurfaced damage may be created in certain composites during the initial contouring of a restoration.
Fluoride penetration into the hybrid layer from a dentin adhesive.
To evaluate the in vitro microleakage of a new fluoride-containing dentin adhesive and to provide evidence for fluoride release from the adhesive and penetration into the dentin, six extracted human third molars were evaluated.
Effects of time after extraction and depth of dentin on resin dentin adhesives.
An adhesive shear test has proved to be reproducible and potentially usable for screening new systems. When evaluating current resin dentin adhesives, it appears that the length of time elapsed since
Clinical evaluation of cement solubility.
The glass ionomer (at two powder-liquid ratios) and silicophosphate cements demonstrated an approximately equal amount of solubility, which was less than for the other cements tested.
Relationship between bond strength and microleakage measured in the same Class I restorations.
There was an inverse relationship between dentin bond strength and microleakage in some materials and that the bond strengths made to three-dimensional Class I cavities were much lower than those made to flat dentin surfaces.
The retentive strengths of acid-etched retained resins.
In vitro retention of eight resin systems to acid-etched enamel was studied and differences in retentive strength were found, but these were not related to the transverse strength of the resins.
Relationship between composite contraction stress and leakage in Class V cavities.
The Kruskal-Wallis test showed a significant difference in leakage for the three composites, and leakage was greater when evaluated in 3-D, and composites with higher contraction stress showed more extensive marginal leakage.