Wear and Marginal Breakdown of Composites with Various Degrees of Cure

@article{Ferracane1997WearAM,
  title={Wear and Marginal Breakdown of Composites with Various Degrees of Cure},
  author={Jack Lib{\'o}rio Ferracane and John C. Mitchem and John R Condon and Richard I. Todd},
  journal={Journal of Dental Research},
  year={1997},
  volume={76},
  pages={1508 - 1516}
}
Loss of anatomical form due to wear has been cited as one factor limiting the clinical use of posterior composites. The physical properties and possibly the wear resistance of composite are influenced by the extent to which it is cured. The aim of this study was to vary degree of conversion (DC) in composites to test the hypothesis that resistance to wear and marginal breakdown could be improved by enhanced curing. A light-cured hybrid composite containing a 50% Bis-GMA/50% TEGDMA resin and 62… 
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Wear Resistance of Bulk-fill Composite Resin Restorative Materials Polymerized under different Curing Intensities.
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The wear resistance was better with the newly introduced bulk-fill composite resins under low-intensity light curing, whereas Tetric N-Ceram cured using high- intensity light was the least wear resistant.
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References

SHOWING 1-10 OF 33 REFERENCES
Degradation of microfilled posterior composite.
TLDR
The purpose of this study was to analyze the clinical characteristics of a posterior composite to determine the mechanisms responsible for marginal degradation and it was shown that the marginal defect was cohesive in nature and that this type of defect was probably due to tensile fatigue failure.
Current Developments in Posterior Composite Resins
  • K. Leinfelder
  • Materials Science, Medicine
    Advances in dental research
  • 1988
TLDR
Although the composite resins have been improved substantially, their use in posterior teeth is quite technique-sensitive, and the problem of secondary caries is still a major concern.
The clinical wear of three posterior composites
TLDR
Findings indicate that composites should not be considered as a direct alternative to amalgam, especially in patients with high occlusal stress, whereas attrition was largely a function of the properties of the material itself.
Fracture Toughness of Experimental Dental Composites Aged in Ethanol
TLDR
It is verified that the KIc and hardness of Bis-GMA-based composites was reduced after long-term aging in an effective solvent, and insufficient curing and severely compromised filler/matrix adhesion contributed to a reduction in the fracture toughness of composites.
Wear patterns and rates of posterior composite resins.
The use of composite resins as posterior restorative materials has been growing at a rapid rate. In spite of major improvements in both physical and mechanical characteristics secondary caries and
Wear patterns and rates of posterior composite resins.
TLDR
Results of long term clinical studies show that a major difference exists between composites containing submicron or supramicron sized filler particles and that the wear rates of the larger filler particles composite resins decrease with time.
Clinical evaluation of two posterior composite resins: two-year results.
TLDR
Although a very high level of acceptability was determined for all of the materials, the frequency of rating change within categories for the composites was a cause of concern with regard to their long-term clinical use.
Five-year clinical study of u.v.-polymerized posterior composites.
TLDR
The wear measured by the USPHS method showed increasing wear rates in earlier reports, apparently due to the limited of the scale to early wear but the wear by the Leinfelder method showed gradually decreasing wear rates.
A clinical evaluation of posterior composite resin restorations.
TLDR
This three-year clinical study compared the clinical performance of three different types of composite resin used in posterior teeth and identified several modes of failure.
Clinical evaluation of six composite resins in posterior teeth.
Six different composite resin restorative materials were placed in posterior Class I and Class II cavities and evaluated at one and two years after placement for colour, marginal discoloration, and
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