Κυριακή 6 Οκτωβρίου 2019

Three dimensionally printed surgical guides for removing fixation screws from onlay bone grafts in flapless implant surgeries

Three dimensionally printed surgical guides for removing fixation screws from onlay bone grafts in flapless implant surgeries:

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Publication date: Available online 4 October 2019

Source: The Journal of Prosthetic Dentistry

Author(s): Otavio Henrique Pinhata-Baptista, Roger Nascimento Gonçalves, Ivan Onone Gialain, Marcelo Gusmão Paraíso Cavalcanti, Ricardo Yudi Tateno, Arthur Rodriguez Gonzalez Cortes

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.

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