Fig. 1From: The optimal orthodontic displacement of clear aligner for mild, moderate and severe periodontal conditions: an in vitro study in a periodontally compromised individual using the finite element modelThe 3D mandible models of three different periodontal conditions. a The 3D model of normal periodontal condition. b The 3D model of mild periodontal disease. c The 3D model of moderate periodontal diseaseBack to article page