Figure 1
Descriptive statistics and correlation analysis of patient experience and influencing factors_
| Initial group | Refinement group | |||||||
|---|---|---|---|---|---|---|---|---|
| Factors | Characteristics | VAS | SAS | OHIP-14 | Characteristics | VAS | SAS | OHIP-14 |
| Age (years) | 29.23 ± 8.07 | 0.05 | 0.69 | 0.14 | 27.93 ± 5.73 | 0.81 | 0.37 | 0.44 |
| Gender | 0.82 | 0.20 | 0.92 | 0.24 | 0.90 | 0.89 | ||
| Male | 8 (13%) | 7 (17.5%) | ||||||
| Female | 54 (87%) | 33 (82.5%) | ||||||
| Angle's classification | 0.18 | 0.50 | 0.38 | 0.87 | 0.39 | 0.28 | ||
| Class I | 11 (17.7%) | 13 (32.5%) | ||||||
| Class II | 39 (63%) | 18 (45%) | ||||||
| Class III | 12 (19.3%) | 9 (22.5%) | ||||||
| Skeletal classification | 0.17 | 0.12 | 0.29 | 0.93 | 0.09 | 0.07 | ||
| Class I | 27 (43.5%) | 21 (52.5%) | ||||||
| Class II | 29 (46.8%) | 11 (27.5%) | ||||||
| Class III | 8 (9.7%) | 8 (20%) | ||||||
| Crowding | 0.61 | 0.56 | 0.37 | N/A | N/A | N/A | ||
| None | 15 (24.2%) | 34 (85%) | ||||||
| I° | 29 (44.6%) | 0 (0) | ||||||
| II° | 9 (14.5%) | 0 (0) | ||||||
| III° | 4 (6.5%) | 0 (0) | ||||||
| Space | 8 (10.2%) | 6 (15%) | ||||||
| ICON scores | 39.27 ± 21.60 | 0.22 | 0.10 | 0.47 | 20.8 ± 13.96 | 0.58 | 0.92 | <0.01 |
| Treatment design | ||||||||
| Number of aligners sets | 47.98 ± 11.77 | 0.82 | 0.50 | 0.35 | 29.7 ± 11.94 | 0.86 | <0.01 | 0.20 |
| Number of extraction teeth | 1.92 ± 1.72 | 0.49 | 0.58 | 0.20 | 0 (0) | N/A | N/A | N/A |
| Amount of interproximal reduction (mm) | 1.56 ± 1.05 | 0.46 | 0.59 | 0.56 | 1.84 ± 1.71 | 0.66 | 0.67 | 0.75 |
| Attachment design | ||||||||
| Number of teeth with attachment | 16.95 ± 1.99 | 0.15 | 0.17 | 0.89 | 15.85 ± 3.69 | 0.09 | 0.36 | 0.35 |
| Number of teeth with optimised attachments | 7.9 ± 4.98 | 0.92 | 0.96 | 0.03 | 6.73 ± 4.01 | 0.93 | 0.47 | 0.15 |
| Ratio of teeth with optimised attachments to all teeth with attachments | 0.46 ± 0.29 | 0.14 | 0.12 | 0.89 | 0.42 ± 0.25 | 0.68 | 0.67 | 0.16 |
| Number of upper incisors with attachments | 1.48 ± 1.11 | 0.96 | 0.19 | 0.15 | 1.75 ± 1.17 | 0.98 | 0.54 | 0.51 |
| Elastics design (the need for elastics) | 0.34 | 0.26 | 0.24 | 0.81 | 0.43 | 0.03 | ||
| With elastics | 46 (74.2%) | 24 (60%) | ||||||
| Without elastics | 16 (25.8%) | 16 (40%) | ||||||
| Number of buttons | 1.06 ± 1.21 | 0.17 | 0.41 | 0.25 | 1.1 ± 1.41 | 0.30 | 0.95 | 0.06 |
Baseline characteristics of the initial and refinement groups_
| Characteristics | Initial group | Refinement group | P-value |
|---|---|---|---|
| Age (years) | 29.23 ± 8.07 | 27.93 ± 5.73 | 0.38 |
| Gender (male; female) | 8; 54 | 7; 33 | 0.57 |
| VAS (Visual Analogue Scale) | 1.48 ± 1.21 | 1.10 ± 0.87 | 0.09 |
| SAS (Self-Rating Anxiety Scale) | 38.17 ± 6.94 | 37.97 ± 6.02 | 0.88 |
| OHIP-14 (oral health impact profile-14) | 12.73 ± 9.51 | 12.80 ± 9.74 | 0.97 |
| ICON (Index of Complexity Outcome and Need) | 39.27 ± 21.60 | 20.80 ± 13.97 | <0.01 |