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Related Experiment Videos

Colour stability of two self curing denture base materials

S Purnaveja, A M Fletcher, G M Ritchie

    Biomaterials
    |October 1, 1982
    PubMed
    Summary
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    New denture base materials were tested for color stability. While measurable color changes occurred after soaking, they were barely noticeable to the human eye, suggesting good performance for these dental materials.

    Area of Science:

    • Materials Science
    • Dental Prosthetics

    Background:

    • Denture base materials require excellent color stability.
    • Some self-curing resins exhibit color instability, impacting aesthetics.
    • Evaluating new denture materials for colorfastness is crucial.

    Purpose of the Study:

    • To assess the color stability of two new denture base materials.
    • To quantify color changes after exposure to water and denture cleansers.
    • To investigate potential causes of color instability in denture base resins.

    Main Methods:

    • Utilized a sophisticated colorimetric instrument for precise color change measurement.
    • Exposed two novel denture base materials, including a pour-type resin, to simulated oral conditions (water, cleansers).
    • Evaluated color changes over a two-week period.

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    Main Results:

    • Both tested denture base materials exhibited measurable color changes.
    • The observed color alterations were minimal and barely perceptible visually.
    • The pour-type resin and the other material showed similar low levels of color change.

    Conclusions:

    • The new denture base materials demonstrate acceptable color stability for clinical use.
    • While measurable, the color changes are unlikely to cause aesthetic concerns for patients.
    • Further investigation into the mechanisms of color instability in these materials is warranted.