Abstract: Objective To evaluate the clinical application of a self-developed CAD-CAM implant guide template system used in implant restorations for edentulous patients. Methods Five patients with single edentulous jaw were selected. Data were acquired by cone-beam CT scan and imported into the self-developed software to design the digital implant guide templates. Physical guide templates were then rapid-prototyped. ITI implants were implanted guided by the template. After three months, definite prostheses were finished. Postoperative follow-ups were made periodically. Results Five acrylic resin CAD-CAM implant guide templates were fabricated. In the guidance of templates, flapless surgeries were made to place 38 ITI implants with good initial stabilities and small postoperative reactions. After three months, good osseointegrations were generated except one implant off. Fixed implant restorations were made for five patients. Six months and one year follow-ups showed good functional and aesthetic restorations. Conclusion The self-developed CAD-CAM implant guide template system can be applied in the edentulous implant surgery to achieve precise preoperative design and intra-operative accurate control of implant position, which can reduce surgical trauma and postoperative complications, and good effect of edentulous implant restoration can be acquired.

Key words: Edentulous, CAD-CAM, Implant guide template, Implant restoration