CASE STUDY decreased. Witts parameters increased to -4 demonstrating her true camouflaged Class III skeletal relationship. Her Pogonion to NB increased by 2 mm. Maxillary incisors stayed in the same position but angulation was decreased by 5 degrees. Incisor angulation was increased improving clinical appearance and helping to create a new overbite and acceptable overjet. Mandibular teeth decreased their maxillary protrusion by 1 mm and decreased the original angulation by 5 degrees (Figs. 4-5 and Figs.17-18). Correction of the anterior open bite was based on bi-maxillary intrusion of the molars. Class III dental rela-tionship was corrected by mandibular arch retraction into a Class I. These movements eliminated lower lip protru-sion and straining of the peri-oral muscles. They also eliminated the possibility of creating an esthetically chal-lenging gummy smile. Her continuing efforts to learn new facial movements without “guarding” her former open bite appearance are physiological and esthetical bonuses of her treatment. At the time of final records, her dental classification was Class I, with very adequate overjet and overbite. Her face was balanced, with improved facial and dental esthet-ics. She was pleased with the results and the initial objec-tives were met (Figs. 15-20). gic rhinitis on dental and skeletal development: a comparison of sibling pairs, Am J Orthod Dentofacial Orthop 92;286293, 1987 3. Linder-Aronson S: Adenoids: their effect on mode of breathing and nasal airflow an their relationship to characteristics of the facial skele-ton and the dentition-a biometric, rhino-manometric and cephalometro-radiographic study on children with and without adenoids, Acta Otolaryngol Suppl 265:1-132, 1970 4. Vig KW: Nasal obstruction and facial growth: the strength of evidence for clinical assumptions, Am J Orthod Dentofacial Orthop 113:603-611, 1988 5. Proffit WR, White RP, Sarver DM: Long face problems. In Profit WR, White RP, Sarver DM, editors: Contemporary treatment of dentofacial deformity, St Louis 2003, Mosby, PP 464-506 6. Echeverri J C, Echeverri E A: Taming Anterior Open bite with Mini Screws, Journal of the American Orthodontic Society Vol. 11, Issue 5: 24-32, 2011 7. Echari P, Kim TW, Favero L, Kim HJ: Correction of anterior open bite. In Echari P, Kim TW, Favero L, Kim HJ editors: Orthodontics and microimplants; complete technique, step by step, Madrid 2007, Ripano pp. 156-181 8. In Sarver DM, editor: Esthetic orthodontics and orthognathic surgery, St Louis, 1988, Mosby, pp 2-55 9. Uribe FA, Nanda R: Efficient mechanics and appliances to correct vertical excess and open bite. In Nanda R., Sunil K, editors: Current therapy in Orthodontics ,St Louis 2010, Mosby P 178 10. Wilmes B: Fields of application of mini-implants, in Bowman SJ, Baumgaertel S editors: Mini-implants in orthodontics, innovative anchorage concepts, Germany 2008 Quintessence Publishing Co, Ltd, pp. 108-109 11. Cope JB: Intrusion of upper molars to close a skeletal open bite, in Cope JB, editor: Ortho TADs; the clinical guide and atlas, Dallas 2007, Underdog Media, pps. 361-367 References 1. Yamaguchi K: Etiological and therapeutic considerations with open bite, In Nanda R., Sunil K, editors: Current therapy in Orthodontics ,St Louis 2010, Mosby P 159-170 2. Trask GM, Shapiro GG, Shapiro PA: The effects of perennial aller-24 Summer 2014 JAOS
Journal of the American Orthodontic Society Summer 2014 / Buyer's Guide: Page 24
