EFFICACY OF TEMPORARY FIXED RETENTION FOLLOWING ...

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Table A-4. Continued. Fixed Retention Removable Retention Variable x sd sem n x sd sem n IMPA -1.54 5.52 0.664 69 -2.32 6.11 0.620 97 SNA -2.06 1.86 0.224 69 -1.69 1.61 0.163 97 SNB -0.04 1.53 0.184 69 -0.21 1.41 0.143 97 ANB -2.01 1.92 0.231 69 -1.48 1.86 0.189 97 AOBO -2.30 3.32 0.400 69 -1.51 2.94 0.299 97 DOP 1.03 2.67 0.322 69 0.56 2.74 0.278 97 Z angle 7.26 6.04 0.727 69 6.23 6.48 0.658 97 UL 2.20 2.73 0.328 69 1.76 2.42 0.246 97 TC 1.67 1.88 0.227 69 1.69 1.79 0.181 97 AFH 4.30 2.99 0.360 69 3.52 2.82 0.286 97 PFH 4.97 3.68 0.443 69 3.41 3.56 0.362 97 OB -1.84 2.51 0.302 69 -1.86 2.19 0.222 97 OJ -3.61 3.37 0.406 69 -2.71 2.65 0.269 97 * An asterisk denotes statistical significance between the two kinds of retention. 159
Table A-5. Descriptive statistics for the posttreatment changes (sexes pooled). Fixed Retention Removable Retention Variable x sd sem n x sd sem n ADisc* 0.46 1.26 0.152 69 0.89 1.41 0.143 97 MADisc 0.12 0.31 0.038 69 0.20 0.74 0.075 97 COS 0.44 0.63 0.076 69 0.58 0.67 0.068 97 MC 0.10 1.71 0.206 69 0.31 1.86 0.189 97 ASR -0.38 3.14 0.378 69 -0.74 3.42 0.347 97 ISR* 0.69 3.96 0.477 69 -0.80 4.27 0.434 97 IAR* 5.77 12.41 1.494 69 3.12 12.78 1.297 97 ASP -1.58 1.18 0.142 69 -1.69 1.43 0.145 97 UMW* -0.39 0.86 0.104 69 -0.82 0.98 0.099 97 LMW -0.37 0.96 0.115 69 -0.45 1.16 0.118 97 UCW -0.45 0.99 0.119 69 -0.51 1.27 0.129 97 LCW -1.31 1.06 0.128 69 -1.09 1.01 0.103 97 ISD* -0.05 0.76 0.091 69 -0.33 0.84 0.085 97 ASD -0.50 0.73 0.088 69 -0.59 0.82 0.084 97 ID -0.16 1.38 0.167 69 -0.03 1.92 0.195 97 ASW -1.10 0.97 0.117 69 -1.08 1.08 0.110 97 II* 1.46 1.90 0.229 69 2.30 2.60 0.264 97 FMIA 1.17 3.68 0.443 69 1.79 4.05 0.412 97 FMA -0.94 2.00 0.241 69 -0.60 2.10 0.214 97 Continued 160
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EFFICACY OF TEMPORARY FIXED RETENTI
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DEDICATION This thesis is dedicated
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ABSTRACT Instability of the occlusi
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CHAPTER 5. DISCUSSION .............
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LIST OF FIGURES Figure 3-1. All cas
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Figure 4-14. Box plot of the distri
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Joondeph and Riedel (1994, p 908) d
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Strang (1952, p 794) claimed that
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malocclusion must be maintained if
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e aimed at maintaining, in most ins
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three time intervals: during treatm
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mechanical treatment does not neces
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elation, the masticatory system wil
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exerted on the denture from the buc
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In summary, the variance in tongue
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Sinclair and Little (1983, p 114) a
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Study and 43 orthodontically treate
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and Sakols 1982; Vaden et al. 1997;
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years postretention. Årtun et al.
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adjustment, if necessary. This abil
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Duration of Retention The premise i
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The reduction in tooth structure of
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4. The most stable position of the
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CHAPTER 3. MATERIALS AND METHODS Sa
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The present sample consisted of the
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Figure 3-2. Illustration of how mol
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Figure 3-3. Illustration showing di
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Figure 3-5. Illustration showing mi
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Figure 3-6. Illustration showing an
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Figure 3-8. Illustration showing in
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34. LR3 cusp tip point. 35. Right d
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Figure 3-10. Illustration showing o
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Figure 3-11. Illustration of Inciso
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3. Go, Gonion (anatomic): The most
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Figure 3-13. Depiction of the angle
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Figure 3-15. Illustration of the me
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Figure 3-17. Illustration of the me
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Figure 3-19. Illustration of the an
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Figure 3-21. Illustration of the up
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Figure 3-22. Illustration of the to
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Figure 3-24. Illustration of the po
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the “older” Tweed force system,
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The null hypothesis is: There was n
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Figure 4-1. Distribution of the 166
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occlusal issues are tolerated by bo
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40 35 30 FMA (degrees) 25 20 15 10
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Figure 4-4. Plot of the average val
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larger ANB at the recall examinatio
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21 19 Total Chin (mm) 17 15 13 11 9
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Figure 4-8. Box plot of the distrib
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which a Class I relationship was no
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Figure 4-11. Plot of mean Curve of
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Figure 4-13. Box plot of the distri
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Table A-4 addresses the question of
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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
Page 119 and 120: 1.5 Incisor Segment Depth (ISD) 1 0
Page 121 and 122: more stable (i.e., the mean change
Page 123 and 124: Molar Correction (MC) 10 8 6 4 2 0
Page 125 and 126: Anterior Segment Width (ASW) 1 0 -1
Page 127 and 128: final vertical positions. This phas
Page 129 and 130: decreased in both arches during the
Page 131 and 132: Figure 5-1. Plot of average Incisor
Page 133 and 134: Based on the present results, the u
Page 135 and 136: these variables indicate more anter
Page 137 and 138: and the hassle associated with plac
Page 139 and 140: Figure 5-2. Scatter-plot graph refl
Page 141 and 142: stability?” and “for how long?
Page 143 and 144: 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
Page 155 and 156: 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
Page 165 and 166: Table A-2. Descriptive statistics a
Page 167 and 168: Table A-3. Descriptive statistics f
Page 169: Table A-4. Descriptive statistics f
Page 173 and 174: APPENDIX B. ANCOVA TESTS OF THE COM
Page 175 and 176: Table B-1. Continued. Sex Retention
Page 185 and 186: Table C-1. Results of ANCOVA tests
Page 197 and 198: Table D-1. Descriptive statistics,
Page 203 and 204: Table E-1. Two-way ANOVA tests eval
Page 205: VITA Mark Owens was born on January
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