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Ceramic shade determination: current technique for a direct approach.

E J Riley, J M Filipancic

    The International Journal of Prosthodontics
    |March 1, 1989
    PubMed
    Summary
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    Dentists can now achieve optimal ceramic restoration shades using a direct custom shade tab method. This technique improves laboratory communication and minimizes costly post-fabrication adjustments for better dental aesthetics.

    Area of Science:

    • Dental Materials Science
    • Restorative Dentistry

    Background:

    • Accurate shade selection is crucial for the aesthetic success of ceramic dental restorations.
    • Current shade matching methods can be subjective and lead to discrepancies between the clinical and laboratory findings.

    Purpose of the Study:

    • To present a novel, direct method for selecting the optimal shade of ceramic restorations.
    • To enhance communication between dentists and dental laboratories regarding shade matching.

    Main Methods:

    • A custom shade tab is created by the dentist using unfired dental porcelain powder and an organic binder.
    • The binder's refractive index is adjusted to match the fired porcelain material.
    • Shade parameters (hue, chroma, value, translucency) are verified via direct comparison with the patient's natural tooth.

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    Main Results:

    • The direct comparison method allows for precise shade verification before restoration fabrication.
    • Adjustments to the shade can be made proactively, reducing the need for post-fabrication alterations.
    • Improved accuracy in shade selection facilitates better communication with dental laboratories.

    Conclusions:

    • This direct custom shade tab method offers a reliable approach to achieving optimal ceramic restoration shades.
    • The technique streamlines the shade selection process, leading to improved clinical outcomes and patient satisfaction.
    • Enhanced dentist-laboratory communication through this method minimizes errors and rework in dental prosthetics.