Fig. 13: Comparison, Pre-Tx and 4-month progress from upper occlusal perspective Fig. 15: Comparison, Pre-and Post-4-month SC treatment, facial perspective. Fig. 16: Nance holding arch in place on MX e’s, due to MX 6’s with high tissue, band placement would be difficult. This will remain in situ throughout remainder of Phase I treatment, and then be replaced by Ph I Doyle retainer. Fig. 14: Comparison, Pre-Tx and 4-month SC progress from lateral perspective -Class I molars achieved. nent teeth in proper angulation and placement within the bony spaces/arches. IM’s facial and dental changes after 4 months of SC are seen in Figs. 15, 16, and 17. Following Phase I, retainers were planned, an upper Doyle with BG bead and lower lingual arch. (Fig. 16) Phase II needs would be re-evaluated once she was in a permanent dentition, and Phase II fees were to be determined at that time, if/as needed. Her parents were made aware that IM’s treatment with Sagittal Correctors was totally dependent on her excellent 24/7 wear of elastics. They were informed that otherwise her bite “will not be corrected and the treatment time will be much greater, and very probably not as successful.” Her excellent compliance provided very successful 4 month Class II correction. Fig. 17: Final pre-and post-treatment photos from lateral perspective. At this point, patient is ready for brackets to be added to lower 2-2, to finalize OB, OJ and arch positions of incisors. www.orthodontics.com Winter 2020 23
Journal of the American Orthodontic Society Winter 2020: Page 23
