The Relationship Between Breast Density Change During Menopause and the Risk of Breast Cancer in Korean Women.

Background: The aim of this study was to investigate the relationship between changes in breast density during menopause and breast cancer risk.

Methods: This study was a retrospective, longitudinal cohort study for women over 30 years of age who had undergone breast mammography serially at baseline and postmenopause during regular health checkups at Samsung Medical Center. None of the participants had been diagnosed with breast cancer at baseline.

Three-dimensional soft tissue analysis for the evaluation of facial asymmetry in normal occlusion individuals.

Objective: To identify the right and left difference of the facial soft tissue landmarks three-dimensionally from the subjects of normal occlusion individuals.

Materials And Methods: Cone-beam computed tomography (CT) scans were obtained in 48 normal occlusion adults (24 men, 24 women), and reconstructed into 3-dimensional (3D) models by using a 3D image soft ware. 3D position of 27 soft tissue landmarks, 9 midline and 9 pairs of bilateral landmarks, were identified in 3D coordination system, and their right and left differences were calculated and analyzed.