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Accuracy of Computer-Assisted Dynamic Navigation as a Function of Different Intraoral Reference Systems: An In Vitro Study

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  • Sigmar Schnutenhaus

    (Centre for Dentistry, Dr Schnutenhaus Community Health Centre (CHC) GmbH, 78247 Hilzingen, Germany
    Department for Dentistry, Clinic for Prosthodontics, Ulm University, 89081 Ulm, Germany)

  • Anne Knipper

    (Centre for Dentistry, Dr Schnutenhaus Community Health Centre (CHC) GmbH, 78247 Hilzingen, Germany)

  • Martin Wetzel

    (Centre for Dentistry, Dr Schnutenhaus Community Health Centre (CHC) GmbH, 78247 Hilzingen, Germany)

  • Cornelia Edelmann

    (Centre for Dentistry, Dr Schnutenhaus Community Health Centre (CHC) GmbH, 78247 Hilzingen, Germany)

  • Ralph Luthardt

    (Department for Dentistry, Clinic for Prosthodontics, Ulm University, 89081 Ulm, Germany)

Abstract

The aim of this in vitro study was to determine whether the process chain influences the accuracy of a computer-assisted dynamic navigation procedure. Four different data integration workflows using cone-beam computed tomography (CBCT), conventional impressions, and intraoral digitization with and without reference markers were analyzed. Digital implant planning was conducted using data from the CBCT scans and 3D data of the oral models. The restoration of the free end of the lower jaw was simulated. Fifteen models were each implanted with two new teeth for each process chain. The models were then scanned with scan bodies screwed onto the implants. The deviations between the planned and achieved implant positions were determined. The evaluation of all 120 implants resulted in a mean angular deviation of 2.88 ± 2.03°. The mean 3D deviation at the implant shoulder was 1.53 ± 0.70 mm. No significant differences were found between the implant regions. In contrast, the workflow showed significant differences in various parameters. The position of the reference marker affected the accuracy of the implant position. The in vitro examination showed that precise implantation is possible with the dynamic navigation system used in this study. The results are of the same order of magnitude that can be achieved using static navigation methods. Clinical studies are yet to confirm the results of this study.

Suggested Citation

  • Sigmar Schnutenhaus & Anne Knipper & Martin Wetzel & Cornelia Edelmann & Ralph Luthardt, 2021. "Accuracy of Computer-Assisted Dynamic Navigation as a Function of Different Intraoral Reference Systems: An In Vitro Study," IJERPH, MDPI, vol. 18(6), pages 1-13, March.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:6:p:3244-:d:521324
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    References listed on IDEAS

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    1. Saverio Cosola & Simone Marconcini & Michela Boccuzzi & Giovanni Battista Menchini Fabris & Ugo Covani & Miguel Peñarrocha-Diago & David Peñarrocha-Oltra, 2020. "Radiological Outcomes of Bone-Level and Tissue-Level Dental Implants: Systematic Review," IJERPH, MDPI, vol. 17(18), pages 1-20, September.
    2. Gerardo Pellegrino & Pierantonio Bellini & Pier Francesco Cavallini & Agnese Ferri & Andrea Zacchino & Valerio Taraschi & Claudio Marchetti & Ugo Consolo, 2020. "Dynamic Navigation in Dental Implantology: The Influence of Surgical Experience on Implant Placement Accuracy and Operating Time. An in Vitro Study," IJERPH, MDPI, vol. 17(6), pages 1-9, March.
    3. Luigi V. Stefanelli & George A. Mandelaris & Alessio Franchina & Nicola Pranno & Michele Pagliarulo & Francesca Cera & Fabio Maltese & Francesca De Angelis & Stefano Di Carlo, 2020. "Accuracy of Dynamic Navigation System Workflow for Implant Supported Full Arch Prosthesis: A Case Series," IJERPH, MDPI, vol. 17(14), pages 1-15, July.
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