CASE 2 MAXILLARY TRANSVERSE EXPANSION Clear aligners are extremely effective with certain patients and less predictable with others. In the latter group: Maxillary transverse expansion in an adult is an often-required maneuver, albeit a tough one. The 37-year-old patient had previously been through traditional braces and two-jaw surgery. She had since experienced some relapse, and her right buccal segment was in full cross bite. She wanted correction, but did not want to go back into braces (Fig. 12). The Clincheck predicted full correction, but it was going to be difficult to achieve clinically (Fig. 13). After four weeks of Invisalign alone, with one-week aligner intervals, MOP and HFV (for aligner seating) were added (Figs. 14 and 15). At one month and two months post-MOP the transverse improvement was realized (Figs. 16 and 17). Fig. 12: Right side: Posterior cross-bite Fig. 13: Full correction predicted Fig. 14: MOP Fig. 15: HFV Fig. 16: One month post-MOP (aligner #8) Fig. 17: Two months post-MOP (aligner #12) CASE 3 A LATERAL OPEN BITE CLOSES WITH MOP Patient is a 55-year-old female who has never had occlusal contacts on her right side (Figs. 18 and 19). Braces were initiated and MOP was applied to the upper right buccal segment at six months (Fig. 20). At four weeks post-MOP, contact was established (Fig. 21a). At 12 weeks post-MOP, the occlusion is being detailed (Fig. 21b). Fig. 20: MOP, upper right Fig. 18: Patient's smile Fig. 21a: Four weeks post-MOP Fig. 19: Patient's occlusion Fig. 21b: 12 weeks post-MOP orthotown.com \\ JUNE 2017 37http://www.orthotown.com