Cl II Malocclusion Treatment, Using the Modified Twin Block Appliance Coordinated with Fixed Orthodontics in a Postmenarche Patient

Figure 5

Twin Block appliance: maxillary part (A): (a) modified ball clasps used instead of conventional clasps to coordinate with fixed appliance; Twin Block appliance (B): (b) block A, (c) block B, (d) labial bow, (e) C clasps, and (f) Adam’s clasp; mandibular part (C); mandibular part mucosal surface (D); mandibular part occlusal surface (E); maxillary part mucosal surface (F); maxillary part occlusal surface (G).