Method for determining and drawing the ideal individual shape of the two upper front teeth (11, 21) of a patient, characterized in that it comprises the following steps: • using at least one image of the patient's face, in front view, non-smiling and with mouth closed; • using at least one image of the patient's face, in front view, smiling and with closed teeth; • determining the front facial angle of the patient's face, starting from the image of the patient's face non-smiling and with mouth closed, wherein the front facial angle is the angle defined between the segments that are joined at the vertex at the level of the nasion and pass through the points of intersection (H, B) between the horizontal straight line passing through the nasal spine and two vertical straight lines (1yd, 1ys) passing through the distal points of the irides, respectively right and left; • drawing eleven vertical straight lines (1yd, 2yd, 3yd, 4yd, 5yd, 6y, 5ys, 4ys, 3ys, 2ys, lys) included between the right and the left distal points of the irides on said image of the patient's face, non-smiling and with mouth closed; • drawing six horizontal straight lines (1x, 2x, 3x, 4x, 5x, 6x) on said image of the patient's non-smiling and with mouth closed, wherein the first straight line is that passing through the pupils and the last one is that passing through the nasal spine; • joining the point on the nasion with the points of intersection between the vertical straight lines (1yd, 1ys) passing through the distal points of the irides and the five horizontal straight lines (2x, 3x, 4x, 5x) below the horizontal straight line passing through the pupils; • highlighting the crossing points between the ten oblique lines obtained, to the right and to the left, and said vertical straight lines (1yd-6yd) and (1ys-6ys); • drawing a parabola with vertex at A and base at H and B, passing through the points highlighted in the previous step, and wherein said parabola defines the shape of the gingival margin of said tooth. • using at least one image of the patient's face, in front view, non-smiling and with mouth closed; • using at least one image of the patient's face, in front view, smiling and with closed teeth; • determining the front facial angle of the patient's face, starting from the image of the patient's face non-smiling and with mouth closed, wherein the front facial angle is the angle defined between the segments that are joined at the vertex at the level of the nasion and pass through the points of intersection (H, B) between the horizontal straight line passing through the nasal spine and two vertical straight lines (1yd, 1ys) passing through the distal points of the irides, respectively right and left; • drawing eleven vertical straight lines (1yd, 2yd, 3yd, 4yd, 5yd, 6y, 5ys, 4ys, 3ys, 2ys, lys) included between the right and the left distal points of the irides on said image of the patient's face, non-smiling and with mouth closed; • drawing six horizontal straight lines (1x, 2x, 3x, 4x, 5x, 6x) on said image of the patient's non-smiling and with mouth closed, wherein the first straight line is that passing through the pupils and the last one is that passing through the nasal spine; • joining the point on the nasion with the points of intersection between the vertical straight lines (1yd, 1ys) passing through the distal points of the irides and the five horizontal straight lines (2x, 3x, 4x, 5x) below the horizontal straight line passing through the pupils; • highlighting the crossing points between the ten oblique lines obtained, to the right and to the left, and said vertical straight lines (1yd-6yd) and (1ys-6ys); • drawing a parabola with vertex at A and base at H and B, passing through the points highlighted in the previous step, and wherein said parabola defines the shape of the gingival margin of said tooth.