Mentoplasty or genioplasty is a common operation to enhance function and appearance of the chin, which has major impact on character impressions and facial beauty. With the advent of new 3D technologies, the technique can be performed using customized guides and plates (with 3D planning and printing), addressing the drawbacks of the procedure, making it minimally invasive, safe, very accurate, and predictable. In this article, we describe a surgical technique using customized surgical guides and plates and performed under local anesthesia and oral sedation, with a surgical time of approximately 45 minutes. The video includes a 3D animation of customized mentoplasty and a recording of real procedures for chin augmentation using customized guides and plates, with use of a minimally invasive approach.