1. THE EDWARD H. ANGLE SOCIETY OF ORTHODONTISTS Midwest Component Annual Meeting Orlando, Florida January 29 th _ February 2 nd 2011

2. CBCT EVALUATION OF SKELETAL, DENTAL, AND VOLUMETRIC MAXILLARY SINUS CHANGES ASSOCIATED WITH TWO TYPES OF MAXILLARY EXPANDERS Valmy Pangrazio-Kulbersh, DDS, MS

14. . INTRODUCTION

21. METHODS AND MATERIALS

25. Palatal Maxillary Width (mm) PMW METHODS AND MATERIALS

26. Buccal Maxillary Width (mm) BMW METHODS AND MATERIALS

27. Palatal CEJ to X (˚) PCEJ-X METHODS AND MATERIALS

28. Buccal CEJ to X (˚) BCEJ-X METHODS AND MATERIALS

29. Buccal Cusp Tip to X (˚) BCusp-X METHODS AND MATERIALS

30. Posterior Nasal Width (mm) PNW P METHODS AND MATERIALS

31. Nasal Floor Width (mm) NFW METHODS AND MATERIALS

32. Anterior Nasal Width (mm) NWH/NWL P NWH NWL METHODS AND MATERIALS

33. Maxillary Width (mm) MaxW METHODS AND MATERIALS

34. Alar Width (mm) METHODS AND MATERIALS

35. Maxillary Sinus Volume (mm³) MSV METHODS AND MATERIALS

36. METHODS AND MATERIALS Posterior airway Volume (mm³) PAV

43. RESULTS

48. RESULTS

65. Showed that thinning of the buccal alveolar bone and increase in width of the lingual alveolar was more prominent with the Hass type of expander vs. the hyrax type. Daniela Gamba Gaig, Jose fernando castanha Henriques, Guillerme janson, Marco roberto Freitas, Adriano Yacubian Fernandez. Periodontal effects of rapid maxillary expansion with tooth tissue borne appliance and tooth borne expanders a computed tomography evaluation. Am J Orthod dentofacial orthop 2006;129:749-758

67. DISCUSSION

77. WHERE DO WE GO FROM HERE?

78. INITIAL 14 años 2 meses CVM 4

81. 1/9/07 EXPANSION COMPLETED 1 vuelta por día durante 1 mes 15 días Expansion obtenida 12mm

82. 10/2/07 (5 MONTHS OF PROTRACTION) Periodo de retención 5 meses

85. 3/18/08 Tiempo de tratamiento 22 meses

87. Sean meadows 4/15/08

89. Un mes de posisionador y ajuste oclusal

92. WORKS CITED

93. WORKS CITED