PHARYNGEAL AIRWAY VOLUME FOLLOWING ...

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T0 A T1 A T0 B Figure 3.2: Sculpted Pharyngeal Airway Volume of a Patient at T0, T1, and T2. (T0= Pre-surgery; T1= 2 mo. postsurgery; T2= 7 mo. post-surgery; A= A-P view of the airway; B= lateral view of the airway as viewed from the anterior) The pharyngeal airway was divided into superior and inferior aspects by creating a line from the maxillary incisal edge perpendicular to the inferior aspect of the posterior pharyngeal wall (Figure 3.3). Superior pharyngeal airway and inferior pharyngeal airway volumes were also calculated. T1 B 32 T2 A T2 B
Line from Maxillary Incisor to Posterior Pharyngeal Wall Figure 3.3: Highlighted Pharyngeal Airway Volume with Superior and Inferior Aspects Identified Determining Amount of Surgical Advancement In order to determine the amount of surgical advancement, or anteroposterior (A-P) movement, of each jaw, CBCT scans taken before surgery and 2 weeks after surgery were used. Each scan was imported into Dolphin 3D. Head position was oriented with Frankfort Horizontal parallel to the horizontal plane (x-axis, or axial plane) and the facial midline centered on the vertical plane (z- axis, or sagittal plane). A plane created through nasion 33 Superior Pharyngeal Airway Inferior Pharyngeal Airway
Page 1 and 2: PHARYNGEAL AIRWAY VOLUME FOLLOWING
Page 3 and 4: PHARYNGEAL AIRWAY VOLUME FOLLOWING
Page 5 and 6: ACKNOWLEDGEMENTS I would like to th
Page 7 and 8: LIST OF TABLES Table 3.1: Descripti
Page 9 and 10: CHAPTER 1: INTRODUCTION Combined or
Page 11 and 12: CHAPTER 2: REVIEW OF THE LITERATURE
Page 13 and 14: the posterior pharyngeal wall, 2 or
Page 15 and 16: mask discomfort, nasal dryness, and
Page 17 and 18: Tongue-Reduction Procedures Other s
Page 19 and 20: structures causes the airway muscle
Page 21 and 22: after surgery, the upper retropalat
Page 23 and 24: skeletal tissues, soft tissues, and
Page 25 and 26: Literature Cited 1. Schwab RJ, Gold
Page 27 and 28: 19. Wittels EH, Thompson S. Obstruc
Page 29 and 30: 37. Li KK, Guilleminault C, Riley R
Page 31 and 32: CHAPTER 3: JOURNAL ARTICLE Abstract
Page 33 and 34: patients often have elongated soft
Page 35 and 36: subsequent to orthognathic surgery
Page 37 and 38: years. Females had a mean age of 28
Page 39: Line from Sella to PNS Posterior of
Page 43 and 44: counterclockwise rotation of the ma
Page 45 and 46: Table 3.1: Descriptive Statistics f
Page 47 and 48: Volume (cubic mm) 30000.00 25000.00
Page 49 and 50: percent change from T0 to T2 (r=.55
Page 51 and 52: surrounding soft tissues encroachin
Page 53 and 54: the pre-surgical values, but there
Page 55 and 56: Conclusions 1. In this study, patie
Page 57 and 58: 10. Lyberg T, Krogstad O, Djupeslan
Page 59 and 60: 27. Li KK, Powell NB, Riley RW, Tro

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