Table 2 Descriptive analysis of group data for all students in both cohorts in relation to tooth surface, number of teeth restored in a quadrant and mean difficulty of all the teeth restored; values are median (min-max) unless otherwise stated
Group (completed restorations; number of students) | 1 (40-49; n = 27) | 2 (50-59; n = 55) | 3 (60-69; n = 27) | 4 (>70; n = 26) | Total (n = 139) |
|---|---|---|---|---|---|
Surface | |||||
Approximal anterior | 7 (2-14) | 8 (2-21) | 11 (2-17) | 13 (6-25) | 9 (2-25) |
Approximal posterior | 12 (4-21) | 14 (7-33) | 16 (7-29) | 16 (6-30) | 14 (4-33) |
Incisal edge | 3 (0-24) | 4 (0-31) | 9 (0-22) | 7 (0-37) | 6 (0-37) |
Smooth surface | 11 (2-19) | 12 (2-23) | 14 (5-37) | 23 (6-43) | 13 (2-43) |
Occlusal surface | 5 (2-11) | 8 (2-17) | 8 (2-14) | 10 (1-21) | 7 (0-21) |
Quadrant | |||||
1 | 12 (8-22) | 15 (3-25) | 18 (8-30) | 18 (11-38) | 15 (3-38) |
2 | 14 (7-23) | 15 (6-31) | 12 (8-28) | 12 (14-37) | 16 (4-37) |
3 | 11 (2-16) | 12 (3-23) | 16 (7-23) | 18 (12-28) | 13 (2-28) |
4 | 10 (4-16) | 12 (4-21) | 13 (4-24) | 18 (11-27) | 12 (3-27) |
Difficulty n (mean ± SD) | 27.81 (± 6.49) | 31.45 (± 6.36) | 36.81 (± 7.03) | 43.12 (± 8.78) | 34.04 (± 8.75) |
Difficulty % (mean ± SD) | 60.11 (± 12.71) | 57.65 (± 11.02) | 57.29 (± 10.61) | 54.45 (± 10.27) | 56.32 (± 11.09) |
