Fig. 4From: Combining virtual model and cone beam computed tomography to assess periodontal changes after anterior tooth movementMeasurement of gingival thickness and alveolar bone thickness. a, b: Perpendicular line from the cemento enamel junction to the tooth axis. c, d The line incorporating parallel translation of (a, b) towards its root apex as 4 mm. e, f Gingival thickness. f, g Alveolar bone thicknessBack to article page