PURPOSE: To present a method for mandibular defects reconstruction with free fibular flap by three-dimensional virtual technology. METHODS: In 11 patients(8 with ameloblastomas, 1 with ossifying fibroma, 2 with carcinoma of the mandibular gingiva), three-dimensional virtual technology was simulated with software. The osteotomies were translated into rapid prototyping guides. The solid model of the mandible and the surgical guides were the same as the full size and the shape, and made by using rapid prototyp...