After retraction of the periostium a rectangularly shaped channel, having a configuraton equal to the shape of the implant, is cut in the jawbone beneath the ridge crest. The channel is checked with a gauge having a shape substantially the same as the implant but having slightly smaller dimensions. The...http://www.google.es/patents/US4177562?utm_source=gb-gplus-sharePatente US4177562 - Dental implant and method of inserting the same
