An implant stent is necessary for the ideal top-down treatment approach. Especially when the cooperation between the surgeon and the prosthodontist occurs, the surgical stent is of utmost importance for the success of the prosthesis. As dental implants are becoming an increasingly common treatment, several relevant techniques have been developed. Among them, there is a customized surgical stent for each patient on sale. This surgical aid is fabricated based on the CT scan data1). For instance, Nobel bio-guide (Nobel Biocare, Sweden) is one of such stents2). (Fig. 1) However, many dental clinics cannot currently afford purchasing a CT scanner. This has motivated many different implant manufacturers to develop a simpler device accurately and easily directing the drilling and implant installation.