EFFICACY OF TEMPORARY FIXED RETENTION FOLLOWING ...

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Table A-2. Continued. Variable Fixed Retention Removable Retention x sd sem n x sd sem n IMPA 91.59 7.75 0.933 69 90.60 6.80 0.690 97 SNA 79.06 3.36 0.405 69 78.47 3.38 0.343 97 SNB 76.32 3.12 0.375 69 75.69 3.64 0.369 97 ANB 2.74 1.69 0.203 69 2.78 1.93 0.196 97 AOBO 0.64 2.35 0.282 69 0.37 2.39 0.243 97 DOP 9.49 3.88 0.467 69 10.05 3.88 0.394 97 Z angle 76.12 6.51 0.784 69 75.14 6.51 0.661 97 UL 15.48 2.97 0.357 69 14.95 2.84 0.288 97 TC* 16.41 2.38 0.286 69 15.36 2.31 0.234 97 AFH 68.43 5.35 0.644 69 67.09 5.56 0.564 97 PFH 52.32 5.14 0.619 69 50.71 4.67 0.474 97 OB* 2.51 1.16 0.139 69 2.00 0.84 0.085 97 OJ* 2.67 0.74 0.089 69 2.32 0.80 0.081 97 * An asterisk denotes statistical significance between the two kinds of retention. 155
Table A-3. Descriptive statistics for the recall examination (sexes pooled). Fixed Retention Removable Retention Variable x sd sem n x sd sem n ADisc 0.38 1.43 0.172 69 0.56 1.48 0.150 97 MADisc -0.15 0.28 0.034 69 -0.19 0.58 0.059 97 COS* 1.19 0.56 0.068 69 1.01 0.58 0.059 97 MC 1.59 1.73 0.208 69 1.30 1.86 0.189 97 ASR 34.42 4.20 0.506 69 33.26 4.92 0.499 97 ISR 17.77 4.56 0.548 69 17.02 5.00 0.507 97 IAR 82.44 15.87 1.911 69 78.46 14.20 1.442 97 ASP 36.08 2.31 0.278 69 35.27 2.60 0.264 97 UMW 50.29 3.20 0.385 69 49.90 3.06 0.311 97 LMW 47.99 2.98 0.359 69 47.98 3.33 0.338 97 UCW 33.27 2.04 0.245 69 32.61 2.10 0.213 97 LCW 24.60 1.54 0.186 69 24.44 1.77 0.180 97 ISD 3.69 0.93 0.112 69 3.50 1.02 0.104 97 ASD 9.50 1.16 0.140 69 9.07 1.31 0.133 97 ID* 23.87 7.76 0.934 69 19.96 6.77 0.687 97 ASW 27.58 1.49 0.179 69 27.32 1.77 0.180 97 II* 1.92 2.03 0.244 69 2.53 2.55 0.259 97 FMIA 63.55 6.11 0.736 69 64.42 6.93 0.703 97 FMA 25.20 7.15 0.861 69 26.29 6.42 0.652 97 Continued 156
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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
Page 115 and 116: 8 Anterior Discrepancy (ADisc) 6 4
Page 117 and 118: 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: Table A-2. Descriptive statistics a
Page 169 and 170: Table A-4. Descriptive statistics f
Page 171 and 172: Table A-5. 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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EFFICACY OF TEMPORARY FIXED RETENTION FOLLOWING ...

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