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Precision of In Vivo Quantitative Tooth Wear Measurement Using Intra-Oral Scans
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Intraoral Scanning Systems: Need for Maintenance.

Peter Rehmann, Viktor Sichwardt, Bernd Wöstmann

    The International Journal of Prosthodontics
    |January 14, 2017
    PubMed
    Summary

    Manufacturer calibration significantly improves the accuracy of intraoral scanning systems. Regular maintenance is crucial for these digital dental tools to ensure precise results.

    Area of Science:

    • Dental Technology
    • Digital Dentistry
    • Diagnostic Imaging

    Background:

    • Intraoral scanners are essential for modern dental practices.
    • Accuracy of these systems can be affected by hardware calibration status.
    • User-perceptible calibration issues are not always apparent.

    Purpose of the Study:

    • To evaluate the impact of manufacturer calibration on the accuracy of intraoral scanning systems.
    • To determine if calibration can enhance the precision of digital dental scans.
    • To assess the need for regular maintenance of intraoral scanners.

    Main Methods:

    • A master model was scanned using Lava Chairside Oral Scanner and CEREC Bluecam systems before and after calibration.
    • An iTero system was used for comparative analysis.

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  • Mean deviation of scans (entire arch and single tooth) was calculated against the master scan.

    • Main Results:

    • Both the Lava Chairside Oral Scanner and CEREC Bluecam showed a significant improvement in accuracy after manufacturer calibration.
    • Calibration enhanced the precision of the scanned dental models.

    Conclusions:

    • Intraoral digital scanners are susceptible to hardware decalibration that may not be visually detectable.
    • Regular maintenance and calibration are recommended for intraoral scanning systems to ensure optimal accuracy.
    • Consistent performance of digital dentistry tools relies on proper upkeep.