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Accuracy in Dental Medicine, A New Way to Measure Trueness and Precision
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Visual and digital comparative tooth colour assessment methods and atomic force microscopy surface roughness.

A A Grundlingh, E S Grossman, S Shrivastava

    SADJ : Journal of the South African Dental Association = Tydskrif Van Die Suid-Afrikaanse Tandheelkundige Vereniging
    |March 26, 2014
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    Summary
    This summary is machine-generated.

    Digital and visual tooth color assessment methods show varying agreement in bleaching studies. Combining both methods is recommended for accurate tooth color analysis and to compensate for individual deficiencies.

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    Area of Science:

    • Dentistry
    • Dental Materials Science
    • Biophotonics

    Background:

    • Accurate tooth color assessment is crucial for aesthetic dentistry and evaluating the efficacy of tooth bleaching treatments.
    • Existing methods for tooth color measurement include visual shade guides and digital spectrophotometers, each with potential limitations.

    Purpose of the Study:

    • To compare the agreement between digital (VITA Easyshade) and visual (VITAPAN 3D MASTER TOOTH GUIDE) tooth color assessment methods.
    • To evaluate the impact of different bleaching agents (Control, Ozicure Oxygen Activator, Opalescence Quick) on tooth color.
    • To investigate the relationship between tooth surface roughness and color assessment accuracy.

    Main Methods:

    • A sample of 99 teeth (incisors, canines, pre-molars) underwent three bleaching treatments.
    • Tooth color readings were recorded at nine intervals using both digital and visual methods.
    • Statistical analysis (GLM test for ANOVA) and atomic force microscopy for surface roughness were performed.

    Main Results:

    • Visual assessment showed significance for treatment, number of treatments, and tooth type.
    • Digital assessment indicated significance for treatment and tooth type.
    • Poor agreement was observed between visual and digital methods for Control and Ozicure treatments.
    • Opalescence Quick treatment resulted in a two-fold increase in surface roughness, potentially improving digital readings.

    Conclusions:

    • Both digital and visual tooth color assessment methods have limitations and should be used concurrently in bleaching studies.
    • Surface roughness influences the accuracy of digital color readings.
    • Further research is needed to optimize tooth color measurement techniques.