CASE STUDY behind the Anterior Arc (Fig. 5). 12 The maxilla is short and improperly positioned. ᕦ The growth pattern is normal although both upper and lower gonial angles are weak (Fig. 6). The significance of this is that the skeletal response to orthodontic treat-ment will not be significant. The bottom line to the above Sassouni Plus cephalometric jargon is that the patient possesses a short maxilla that is positioned properly posteriorly but is deficient anteri-orly. The mandible is positioned correctly anteriorly, but is slightly long posteriorly. Fig. 3 Skeletal Diagnosis b Skeletal Class I -TIII b Normal to slightly closed skeletal vertical dimension b Normal growth pattern Fig. 4 Fig. 5 Dental Observations (Figs. 7-9) b V-shaped and somewhat narrow maxillary arch b Lower incisor crowding due to a slightly narrow mandibu-lar arch b Maxillary midline is 3 mm to the left of the mandibular midline b Right cuspids are Class I-TII b Right molar approaches Class I b Left cuspid and molars are Class I b 4 mm overjet b Overbite is normal Fig. 6 Dental Diagnosis b Dental Class I-TII on the right side b Dental Class I on the left side b A mild dental platform asymmetry exists. www.orthodontics.com Fall 2021 13
Journal of the American Orthodontic Society Fall 2021: Page 13
