EFFICACY OF TEMPORARY FIXED RETENTION FOLLOWING ...

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Digitized Landmarks The following points were digitized on the casts. Figures 3-2 through 3-9 illustrate these variables. 1. Distal contact point, LL7 2. Mesial contact point, LL7 3. Distal contact point, LL6 4. Mesial contact point, LL6 5. Distal contact point, LL5 6. Mesial contact point, LL5 7. Distal contact point, LL4 8. Mesial contact point, LL4 9. Distal contact point, LL3 10. Mesial contact point, LL3 11. Distal contact point, LL2 12. Mesial contact point, LL2 13. Distal contact point, LL1 14. Mesial contact point, LL1 15. Mesial contact point, LR1 16. Distal contact point, LR1 17. Mesial contact point, LR2 18. Distal contact point, LR2 19. Mesial contact point, LR3 20. Distal contact point, LR3 21. Mesial contact point, LR4 22. Distal contact point, LR4 23. Mesial contact point, LR5 24. Distal contact point, LR5 25. Mesial contact point, LR6 26. Distal contact point, LR6 27. Mesial contact point, LR7 28. Distal contact point, LR7 29. Left occlusal depth point: The posterior limit of the tooth-bearing portion of the mandible. 30. LL6 mesial buccal groove at gum line point. 31. Left divide point: The junction of the left midarch segment and the anterior segment. This point is the distal contact point of LL3 in a stable and wellaligned arch. This point is centered over the alveolus in an irregular arch. 32. LL3 cusp tip point. 33. Midline point: Midline of mandibular arch determined by geometric construction. 45
Figure 3-6. Illustration showing anterior segment depth, anterior segment width, and anterior segment ratio. Anterior segment depth is perpendicular from the midline point to the anterior segment width line. Anterior segment width is the linear distance between the left and right divide points. Anterior segment depth divided by the anterior segment width is the anterior segment ratio. 46
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EFFICACY OF TEMPORARY FIXED RETENTI
Page 3 and 4:
DEDICATION This thesis is dedicated
Page 5 and 6: ABSTRACT Instability of the occlusi
Page 7 and 8: CHAPTER 5. DISCUSSION .............
Page 9 and 10: LIST OF FIGURES Figure 3-1. All cas
Page 11 and 12: Figure 4-14. Box plot of the distri
Page 13 and 14: Joondeph and Riedel (1994, p 908) d
Page 15 and 16: Strang (1952, p 794) claimed that
Page 17 and 18: malocclusion must be maintained if
Page 19 and 20: e aimed at maintaining, in most ins
Page 21 and 22: three time intervals: during treatm
Page 23 and 24: mechanical treatment does not neces
Page 25 and 26: elation, the masticatory system wil
Page 27 and 28: exerted on the denture from the buc
Page 29 and 30: In summary, the variance in tongue
Page 31 and 32: Sinclair and Little (1983, p 114) a
Page 33 and 34: Study and 43 orthodontically treate
Page 35 and 36: and Sakols 1982; Vaden et al. 1997;
Page 37 and 38: years postretention. Årtun et al.
Page 39 and 40: adjustment, if necessary. This abil
Page 41 and 42: Duration of Retention The premise i
Page 43 and 44: The reduction in tooth structure of
Page 45 and 46: 4. The most stable position of the
Page 47 and 48: CHAPTER 3. MATERIALS AND METHODS Sa
Page 49 and 50: The present sample consisted of the
Page 51 and 52: Figure 3-2. Illustration of how mol
Page 53 and 54: Figure 3-3. Illustration showing di
Page 55: Figure 3-5. Illustration showing mi
Page 59 and 60: Figure 3-8. Illustration showing in
Page 61 and 62: 34. LR3 cusp tip point. 35. Right d
Page 63 and 64: Figure 3-10. Illustration showing o
Page 65 and 66: Figure 3-11. Illustration of Inciso
Page 67 and 68: 3. Go, Gonion (anatomic): The most
Page 69 and 70: Figure 3-13. Depiction of the angle
Page 71 and 72: Figure 3-15. Illustration of the me
Page 73 and 74: Figure 3-17. Illustration of the me
Page 75 and 76: Figure 3-19. Illustration of the an
Page 77 and 78: Figure 3-21. Illustration of the up
Page 79 and 80: Figure 3-22. Illustration of the to
Page 81 and 82: Figure 3-24. Illustration of the po
Page 83 and 84: the “older” Tweed force system,
Page 85 and 86: The null hypothesis is: There was n
Page 87 and 88: Figure 4-1. Distribution of the 166
Page 89 and 90: occlusal issues are tolerated by bo
Page 91 and 92: 40 35 30 FMA (degrees) 25 20 15 10
Page 93 and 94: Figure 4-4. Plot of the average val
Page 95 and 96: larger ANB at the recall examinatio
Page 97 and 98: 21 19 Total Chin (mm) 17 15 13 11 9
Page 99 and 100: Figure 4-8. Box plot of the distrib
Page 101 and 102: which a Class I relationship was no
Page 103 and 104: Figure 4-11. Plot of mean Curve of
Page 105 and 106: Figure 4-13. Box plot of the distri
Page 107 and 108:
Table A-4 addresses the question of
Page 109 and 110:
Figure 4-16. Bar chart of the avera
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only sample changed significantly m
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3 2 1 0 Canonical Variate 2 -1 -2 R
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8 Anterior Discrepancy (ADisc) 6 4
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40 Incisor Aspect Ratio (IAR) 30 20
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1.5 Incisor Segment Depth (ISD) 1 0
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more stable (i.e., the mean change
Page 123 and 124:
Molar Correction (MC) 10 8 6 4 2 0
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Anterior Segment Width (ASW) 1 0 -1
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final vertical positions. This phas
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decreased in both arches during the
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Figure 5-1. Plot of average Incisor
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Based on the present results, the u
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these variables indicate more anter
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and the hassle associated with plac
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Figure 5-2. Scatter-plot graph refl
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stability?” and “for how long?
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About two-thirds (64%) of the corre
Page 145 and 146:
Baume LJ, Horowitz HS, Summers CJ,
Page 147 and 148:
Case CS. Techniques and principles
Page 149 and 150:
Glenn G, Sinclair PM, Alexander RG.
Page 151 and 152:
Joondeph DR. Retention and relapse.
Page 153 and 154:
Littlewood SJ, Millett DT, Doubleda
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Ormiston JP, Huang GJ, Little RM, D
Page 157 and 158:
Rosenstein SW, Jacobson BN. Retenti
Page 159 and 160:
Steadman SR. A philosophy and pract
Page 161 and 162:
Zachrisson BU, Büyükyilmaz T. Bon
Page 163 and 164:
Table A-1. Descriptive statistics a
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Table A-2. Descriptive statistics a
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Table A-3. Descriptive statistics f
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APPENDIX B. ANCOVA TESTS OF THE COM
Page 175 and 176:
Table B-1. Continued. Sex Retention
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Table C-1. Results of ANCOVA tests
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Table D-1. Descriptive statistics,
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Table E-1. Two-way ANOVA tests eval
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VITA Mark Owens was born on January
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