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Related Experiment Videos

Light curing--an update.

John O Burgess1, Richard S Walker, Corey J Porche

  • 1Operative Dentistry and Biomaterials Department, Louisiana State University School of Dentistry, New Orleans, Louisiana, USA.

Compendium of Continuing Education in Dentistry (Jamesburg, N.J. : 1995)
|November 19, 2002
PubMed
Summary

This review examines four curing light technologies used in dentistry, including quartz tungsten halogen (QTH), plasma arc curing (PAC), laser, and light-emitting diode (LED) systems. Future dental restorations may benefit from advancements in LED curing lights.

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Area of Science:

  • Dental materials science
  • Biomedical engineering

Background:

  • Light-cured, resin-based composites are fundamental in esthetic and restorative dentistry.
  • The effectiveness of dental restorations relies heavily on the proper curing of composite resins.
  • Various light curing technologies exist, each with distinct performance characteristics.

Purpose of the Study:

  • To review the performance and limitations of four types of dental curing lights.
  • To explore the potential of light-emitting diode (LED) technology in future dental applications.
  • To examine the impact of different curing modes on the integrity and leakage of dental restorations.

Main Methods:

  • Review of existing literature on dental curing light technologies.
  • Comparative analysis of quartz tungsten halogen (QTH), plasma arc curing (PAC), laser, and light-emitting diode (LED) curing lights.

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  • Discussion of curing modes such as soft-start, exponential, and pulse delay.

    • Main Results:

    • Quartz tungsten halogen (QTH) lights are currently dominant but less efficient than plasma arc curing (PAC) lights.
    • Plasma arc curing (PAC) lights offer more efficient curing of composite resin increments.
    • Light-emitting diode (LED) curing lights are predicted for future use but currently lack the power of PAC and QTH lights.

    Conclusions:

    • LED curing lights represent the future of dental restoration, offering potential improvements in efficiency and patient care.
    • Understanding the limitations and performance of current technologies is crucial for developing next-generation curing systems.
    • Optimizing curing modes can enhance marginal integrity and reduce leakage in resin-based composite restorations.