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Updated: Jan 6, 2026

Treatment of Facial Deformities using 3D Planning and Printing of Patient-Specific Implants
Published on: May 23, 2020
Three dimensionally printed surgical guides for removing fixation screws from onlay bone grafts in flapless implant
Otavio Henrique Pinhata-Baptista1, Roger Nascimento Gonçalves2, Ivan Onone Gialain3
1Head, Department of Implant Dentistry, Area Military Hospital of São Paulo (HMASP), São Paulo, Brazil.
Abstract:
The present technique report describes a digital workflow for flapless implant surgery after onlay block bone graft healing in the esthetic area. Virtual removal of block fixation screws and optimal single-tooth implant position and digital crown waxing were planned from cone beam computed tomography (CBCT) and intraoral scans. Two different surgical guides were digitally designed and 3D-printed to allow for flapless implant surgery. The first surgical guide was used to remove all 3 fixation screws from a healed onlay block graft, whereas the second guide was used to determine the implant position and direction. The present methodology may be considered a time-efficient flapless approach for placing implants in sites with block grafts.

