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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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.

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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