A surgical guide is widely used in dental implant surgery for positioning a fixture. There are various designs of surgical guides from each company. This study aimed to compare the accuracy of 2 static computer-guided implant systems; a metal sleeve with a key handle (Nobel guide, Nobel Biocare) and a metal sleeve without a key handle (Dentium full guide kit, Dentium), when placing the implant in bone models. A total of 20 polyurethane bone models were fabricated to simulate human bone. The dental implants for each system were placed in the bone models following the company’s recommended protocols. After the dental implants were installed, the digital scans were done by an extraoral scanner. The deviations of the implant position were evaluated between the post-implant placement and reference model by GOM inspect software. The data were analyzed using an independent sample t-test. The data were from 20 bone models, 10 models for each system. The accuracy of the dental implant position was not significantly influenced by the difference in the surgical guide system (p>0.05). However, more deviation of the implant position was found in a metal sleeve with key handle type (Nobel guide), except in the angular deviation. Within the limitations of this study, the accuracy of implant placement of two types of surgical guides was similar. Hence, the operators can choose the surgical guide system according to the preference.