Why Choose Flash Curing?

Not All Lights are Equal

How Stroboscopic Light Creates a Superior Finish

Why Choose Flash Curing?

For the Broader Spectrum

  • Stroboscopic light is emitted at wavelengths in the range of 250-950 nm. By contrast, LEDs emit in a narrow range (± 10 nm) near the stated wavelengths (265, 285 405 nm) only.

Why does this matter?

  • The photoinitiators in dental resins and composites have an absorption ranges beyond those listed on the bottle. Ranges fall between 240 and 510 nm. (1) The most effective cure (resulting in superior mechanical properties) occurs when the emitted light covers the absorption range of the photoinitiators used. Given the broad spectrum of stroboscopic light, this is virtually guaranteed - making stroboscopic light a near universal curing choice.*

  • Broad spectrum stroboscopic light gives you flexibility in your resin/composite choice. And because new resins are always being developed, it may help future-proof your lab.

For the Higher Intensity

  • For the duration of the flash, stroboscopic light is approx. 10,000 times more intense than LED light.

Why does this matter?

  • High-intensity light results in the formation of longer polymer chains and fewer residual monomers. High-intensity light also penetrates deeper into polymerization materials, especially opaque ones. These processes result in:

    • Improved mechanical properties such as higher Martens hardness and indentation modulus. (2)

    • Improved biocompatibility (3) and possibly reduced likelihood of allergic reactions.

Add Nitrogen for Improved Surface Characteristics

  • Using a nitrogen (or other protective) atmosphere complements a flash cure by preventing the development of a tacky inhibition layer on the surface. This results in:

    • Harder, more scratch-resistant surfaces

    • Smoother and better-fitting surfaces for increased precision

    • A reduction in surface-level residual monomers, resulting in improved biocompatibility

    • Less need for post-processing

  1. Kowalska, A., Sokolowski, J. and Bociong, K., 2021. Polymers, 13(3), p.470.

  2. Reymus, M., and Stawarczyk, B., 2021. The Journal of Prosthetic Dentistry, 125(5), p.817

  3. Reymus, M., Lümkemann, N. and Stawarczyk, B., 2019. International Journal of Computerized Dentistry, 22(3).

* Always follow resin/composite manufacturer guidelines and refer to device instructions to ensure proper curing results. Results and times may vary depending on resins/composites used and curing conditions (e.g., condition of curing trays, etc.)

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