A system for the placement of dental implants, comprising: - one or more posts, each configured for the coupling thereof in a dental implant of a patient, wherein each post includes a plurality of first locators made of a radiologically visible material; - a reference element, adapted for the positioning thereof around the teeth of said patient, wherein said reference element includes a series of second locators made of a radiologically visible material, distributed at prefixed distance and position on a surface of the reference element; - an image acquisition system configured for obtaining at least one three-dimensional image of the posts and of said reference element when the posts with their first locators are coupled in the implant and when the reference element with its second locators is positioned around the teeth of the patient; and - a processing unit configured for processing said acquired three-dimensional image by: - implementing a first algorithm which: ▪ detects how the second locators in the reference element are arranged in the image, ▪ calculates the distance between the second locators in the image, and ▪ calculates a correction factor by comparing said calculated distance with said prefixed distance and position; and - implementing a second algorithm which: ▪ detects in the image the first locators, ▪ groups the detected first locators, in correspondence to each post, by the number of elements and by proximity, ▪ applies an adjustment factor, taking into account said calculated correction factor, to one or more of the groups using a third point iteration algorithm, providing a series of geometrical transformations of the first locators, and ▪ prepares a file using said series of geometrical transformations, such that the placement and axial orientation are indicated for each post. - one or more posts, each configured for the coupling thereof in a dental implant of a patient, wherein each post includes a plurality of first locators made of a radiologically visible material; - a reference element, adapted for the positioning thereof around the teeth of said patient, wherein said reference element includes a series of second locators made of a radiologically visible material, distributed at prefixed distance and position on a surface of the reference element; - an image acquisition system configured for obtaining at least one three-dimensional image of the posts and of said reference element when the posts with their first locators are coupled in the implant and when the reference element with its second locators is positioned around the teeth of the patient; and - a processing unit configured for processing said acquired three-dimensional image by: - implementing a first algorithm which: ▪ detects how the second locators in the reference element are arranged in the image, ▪ calculates the distance between the second locators in the image, and ▪ calculates a correction factor by comparing said calculated distance with said prefixed distance and position; and - implementing a second algorithm which: ▪ detects in the image the first locators, ▪ groups the detected first locators, in correspondence to each post, by the number of elements and by proximity, ▪ applies an adjustment factor, taking into account said calculated correction factor, to one or more of the groups using a third point iteration algorithm, providing a series of geometrical transformations of the first locators, and ▪ prepares a file using said series of geometrical transformations, such that the placement and axial orientation are indicated for each post. - implementing a first algorithm which: ▪ detects how the second locators in the reference element are arranged in the image, ▪ calculates the distance between the second locators in the image, and ▪ calculates a correction factor by comparing said calculated distance with said prefixed distance and position; and ▪ detects how the second locators in the reference element are arranged in the image, ▪ calculates the distance between the second locators in the image, and ▪ calculates a correction factor by comparing said calculated distance with said prefixed distance and position; and - implementing a second algorithm which: ▪ detects in the image the first locators, ▪ groups the detected first locators, in correspondence to each post, by the number of elements and by proximity, ▪ applies an adjustment factor, taking into account said calculated correction factor, to one or more of the groups using a third point iteration algorithm, providing a series of geometrical transformations of the first locators, and ▪ prepares a file using said series of geometrical transformations, such that the placement and axial orientation are indicated for each post. ▪ detects in the image the first locators, ▪ groups the detected first locators, in correspondence to each post, by the number of elements and by proximity, ▪ applies an adjustment factor, taking into account said calculated correction factor, to one or more of the groups using a third point iteration algorithm, providing a series of geometrical transformations of the first locators, and ▪ prepares a file using said series of geometrical transformations, such that the placement and axial orientation are indicated for each post.