4.1 Article

Comparison of the accuracy of dental implant placement using static and dynamic computer-assisted systems: an in vitro study

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ELSEVIER
DOI: 10.1016/j.jormas.2020.11.008

Keywords

Dental implant; Computer-assisted system; Accuracy; Model study

Funding

  1. National Key Research and Development Program of China [2016YFC1102900]
  2. National Natural Science Foundation of China [81671029]
  3. Guangzhou Science, Technology, and Innovation Commission [201704030024, 201803040008]

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This study compared the accuracy of implant placement between static and dynamic computer-assisted systems in a partially edentulous mandible model, and found that dynamic CAS showed significantly less deviations and higher accuracy in implant placement compared to static CAS.
Objectives: The study aimed to compare the accuracy of implant placement between static and dynamic computer-assisted systems (CAS) in a partially edentulous mandible model. Materials & Methods: A total of 80 implants was placed in mandible models. The implants were placed using either static or dynamic computer-assisted system. Deviations of implant hex, apex and angulation were measured between preoperative planning and postoperative CBCT in planning software. Results: The mean deviations of implant hex, apex and angulation in static CAS group were 1.15 +/- 0.34 mm, 1.37 +/- 0.38 mm and 2.60 +/- 1.11 degree, while in dynamic CAS group were 0.40 +/- 0.41 mm, 0.34 +/- 0.33 mm and 0.97 +/- 1.21 degree, respectively. Implant placement with dynamic CAS showed less deviations of shoulder, apex and angulation than with static CAS significantly. Conclusions: The implant accuracy using CAS system could be influenced by the guiding technique. (C) 2020 Elsevier Masson SAS. All rights reserved.

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