A method is described for positioning a guide tube on a plate to be positioned over a patients mandible or maxilla, forming a surgical guide that allows for positioning the guide tube on the exact position so as to enable the drilling of a perfect hole in the patients bone portion and the subsequent positioning of an implant exactly on the planned spot. A tomographic reference support is described for fixing a guide tube positioning device, and a guide tube positioning device is described for positioning one or more guide tubes on an acrylic plate or the like, configuring a surgical guide.
