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Related Concept Videos

Accelerated Curing of Concrete01:25

Accelerated Curing of Concrete

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Accelerating concrete curing is achieved by applying heat and additional moisture. This process accelerates the hydration of the cement, resulting in an earlier strength gain in the concrete. Steam curing is a method wherein the concrete products are either transported through a chamber on a conveyor belt or encased in plastic, allowing steam at atmospheric pressure to circulate freely around them. This process begins with a phase of moist curing that typically lasts between 3 to 5 hours, after...
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Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
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Improving Composite Resin Performance Through Decreasing its Viscosity by Different Methods.

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Decreasing the viscosity of dental resin composites improves handling and application, especially in complex cavities. This study reviews methods like flowable composites and sonic vibration to aid dentists in material selection.

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Area of Science:

  • Dental Materials Science
  • Biomaterials Engineering

Background:

  • Resin composites are widely used in restorative dentistry.
  • Handling and placement of viscous resin composites can be challenging, particularly in anatomically complex preparations.
  • Optimizing the handling properties of dental composites is crucial for successful clinical outcomes.

Purpose of the Study:

  • To review and present current methods for decreasing the viscosity of resin composite materials.
  • To provide dentists with criteria for selecting appropriate viscosity-reducing techniques based on therapeutic needs.
  • To evaluate the impact of viscosity reduction on the handling and application of dental composites.

Main Methods:

  • Review of literature on viscosity-reducing techniques for resin composites.
  • Analysis of methods including: use of flowable composites, monomer mixture viscosity reduction, composite heating, and application of sonic vibration.
  • Comparison of the effects of different methods on handling, application, and other material properties.

Main Results:

  • Lowering resin composite viscosity demonstrably improves handling characteristics and ease of application, particularly in cavities with intricate morphologies.
  • Viscosity reduction facilitates faster clinical procedures and enhances the marginal adaptation of the restorative material.
  • The impact of viscosity reduction on other composite properties, such as mechanical strength and degree of conversion, showed variability and was influenced by factors like composite brand and light-curing equipment.

Conclusions:

  • Methods for decreasing resin composite viscosity offer significant advantages in handling and application, leading to improved clinical efficiency and restoration quality.
  • Dentists can benefit from understanding these techniques to optimize material selection for specific clinical scenarios.
  • Further research is needed to fully elucidate the effects of viscosity reduction on all critical properties of resin composites across different materials and curing conditions.