Transverse Stability after RPE in y Cleft Palate Patients

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Previous Study Methods • Di Direct t measurements t on plaster l t casts t (Long et al. 1995) – Prone to distortion when impressions are made Onl er pted permanent 1st – Only erupted permanent 1 molars meas red st molars measured • Measurements on photographs (Ramstad et al. 1997) – Sensitive to the angle and distance of camera • Measurements on 2D projection images (Kindelan et al. 1999) – Example: Lateral Head Films Films, Periapicals Periapicals, Occlusals – Affected by variable magnification and superimposition of structures – Sensitive to orientation of patient • Variable findings g of ppast studies may y be due to poor imaging modalities
Cone‐Beam Computed Tomography • CBCT is less prone to error than previous p modalities • Accurate from 0.125 to 04 0.4 mm with ihno detectable d bl magnification ifi i • Slices can be viewed individually y to eliminate overlapping structures • Pti Patient’s t’ orientation i t ti (Cartesian (C t i coordinates) di t ) can be standardized using software
Page 1 and 2: Transverse Stability y after RPE in
Page 3 and 4: Epidemiology of Cleft Palate • 1.
Page 5 and 6: Overview of Treatment • Complex t
Page 7 and 8: Deciduous Canine Permanent Unilater
Page 9: Stability of Expansion • Conflict
Page 13 and 14: Statement of Purpose • The h purp
Page 15 and 16: Data Collection • CBCT scans capt
Page 17 and 18: UCLA‐Molen 3D Orientation Second,
Page 19 and 20: UCLA‐Molen 3D Orientation
Page 21 and 22: j‐Point j •Most Medial Point at
Page 23 and 24: Absolute Measurements (mm) M 1st
Page 25 and 26: Alveolar Cleft Width Measurements M
Page 27 and 28: Conclusion #2 • Absolute expansio
Page 29 and 30: Conclusion #3 • Expansion is less
Page 31 and 32: Conclusion #4 • Relative expansio
Page 33: Acknowledgements • Special Thanks

Transverse Stability after RPE in y Cleft Palate Patients

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