Abstract
Genioplasty is a surgical technique that consists of modifying the projection of the chin in three dimensions to achieve symmetry and facial harmonization. Virtual 3D planning is being increasingly used, supplanting the conventional surgical technique due to the precise and predictable results that are obtained. The definition of the objective of the study was first carried out using the PICO question method. Posteriorly, an updated literature review was carried out in the "PubMed" database using the keywords "Genioplasty & Virtual 3D Planning", obtaining 11 articles for the study with the objective of defining the advantages and disadvantages of performing a virtually planned genioplasty, comparing it with the conventional technique. In the results, it is observed that virtually planned genioplasty presents greater precision, a reduction in surgical time, and a lower rate of complications than the conventional technique. Virtual planning using CAD/CAM technology presents good reproducibility in the patient with <2mm variations between what was planned and what was obtained postoperatively, with statistically significant results (p<0.001). In conclusion, virtually planned genioplasty with customized cutting guides and osteosynthesis plates achieves very precise surgery results with good reproducibility, reducing surgical time, intraoperative complications, and the difficulty of the surgical technique.
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