Accuracy comparison between the three-dimensional position of planned and placed implants with flapless fully-guided surgery: 1-year follow-up from a single-cohort retrospective study


Published: 2 July 2020
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Authors

  • P. C. Passarelli Department of Head and Neck, Division of Oral Surgery and Implantology, Fondazione Policlinico Universitario Gemelli, Italy.
  • M. Ferro Department of Head and Neck, Oral Surgery and Implantology Unit, Institute of Clinical Dentistry, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Gemelli, Rome, Italy, Italy.
  • P. De Angelis Department of Head and Neck, Oral Surgery and Implantology Unit, Institute of Clinical Dentistry, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Gemelli, Rome, Italy, Italy.
  • P. Papi Department of Oral Surgery and Implantology, University of Rome La Sapienza, Rome, Italy, Italy.
  • G. B. Piccirillo Department of Head and Neck, Oral Surgery and Implantology Unit, Institute of Clinical Dentistry, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Gemelli, Rome, Italy, Italy. https://orcid.org/0000-0003-4956-9145
  • V. Desantis Department of Head and Neck, Oral Surgery and Implantology Unit, Institute of Clinical Dentistry, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Gemelli, Rome, Italy, Italy.
  • R. Papa Department of Head and Neck, Oral Surgery and Implantology Unit, Institute of Clinical Dentistry, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Gemelli, Rome, Italy, Italy.
  • G. Pompa Department of Oral Surgery and Implantology, University of Rome La Sapienza, Rome, Italy, Italy.
  • A. D'Addona Department of Head and Neck, Oral Surgery and Implantology Unit, Institute of Clinical Dentistry, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Gemelli, Rome, Italy, Italy.

Aim This research was performed to evaluate the in vivo accuracy of flapless, computer-guided implant placement by comparing the three-dimensional position of planned and placed implants.

Materials and methods In this retrospective study the results from a 1-year follow-up of a single-cohort of 15 patients (30 implants) are reported. A 3D planning software was used to determine the correct placement, considering the bone volume, the functional and the aesthetic prosthetic result. CAD/CAM technology was used to turn the virtual plan into the surgical guide.

Results The statistical analysis showed a mean radial deviation of the implant head of 0.3 mm (SD 0.21), a mean radial deviation of the implant apex of 0.58 mm (SD 0.33), a mean depth deviation of the implant head of 0.37 mm (SD 0.29), a mean depth deviation of the implant apex of 0.43 mm (SD 0.25) and a mean angular deviation of the long axis of 2.87° (SD 1.99); the mean actual translation between the planned and the placed implant was 0.66 mm (SD 0.35) at implant platform and 1.04 mm (SD 0.47) at apex.

Conclusion Flapless and computer-guided implant placement proved to be a reliable clinical option for an accurate implant insertion.


Passarelli, P. C., Ferro, M., De Angelis, P., Papi, P., Piccirillo, G. B., Desantis, V., Papa, R., Pompa, G., & D’Addona, A. (2020). Accuracy comparison between the three-dimensional position of planned and placed implants with flapless fully-guided surgery: 1-year follow-up from a single-cohort retrospective study. Journal of Osseointegration, 12(3), 229–235. https://doi.org/10.23805/JO.2020.12.03.2

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