Figure 1.
Distribution of bond failures between pumiced and non-pumiced teeth
| Group | Bond failure | Intact bonds | Total | Percentage (%) | p-value | |
|---|---|---|---|---|---|---|
| n=14 | Total | |||||
| Pumice | 6 | 154 | 160 | 42.9 | 3.8 | |
| No pumice | 8 | 152 | 160 | 57.1 | 5 | 0.393 |
| Total | 14 | 306 | 320 | 100 | 4.4 | |
Distribution of bond failures between anterior and posterior teeth
| Group | Location | Total | p-value | |
|---|---|---|---|---|
| Anterior, n (%) | Posterior, n (%) | |||
| Pumice | 3 (21.4) | 3 (21.4) | 6 | |
| No pumice | 5 (35.7) | 3 (21.4) | 8 | 0.393 |
| Total | 8 (57.1) | 6 (42.8) | 14 | |
Distribution of bond failures between upper and lower arches
| Group | Location | Total | p-value | |
|---|---|---|---|---|
| Upper, n (%) | Lower, n (%) | |||
| Pumice | 1 (7) | 5 (35.7) | 6 | |
| No pumice | 4 (28.6) | 4 (28.6) | 8 | 0.238 |
| Total | 5 (35.6) | 9 (64.3) | 14 | |
Distribution of ARI scores for the bond failures
| Group | Adhesive Remnant Index (ARI) score | Total | p-value | |||
|---|---|---|---|---|---|---|
| 0 n (%) | 1 n (%) | 2 n (%) | 3 n (%) | |||
| Pumice | 0 | 4 (28.6) | 2 (14.3) | 0 | 6 | 0.576 |
| No pumice | 1 (28.6) | 4 (28.6) | 3 (21.4) | 0 | 8 | |
Distribution of bond failures between archwires
| Group | Archwires | Total | p-value | |||
|---|---|---|---|---|---|---|
| 0.014˝ NiTi n (%) | 0.018˝ NiTi n (%) | 0.017˝ × 0.025˝ NiTi n (%) | 0.019˝ × 0.025˝ SS n (%) | |||
| Pumice | 4 (28.6) | 2 (14.3) | 0 | 0 | 6 | |
| No pumice | 2 (14.3) | 6 (42.8) | 0 | 0 | 8 | 0.594 |
| Total | 6 (42.8) | 8 (57.1) | 0 | 0 | 14 | |
Distribution of bond failures according to tooth type
| Location | Upper, n (%) | Lower, n (%) | Total, n (%) |
|---|---|---|---|
| Central incisor | 1 (7.1) | 1 (7.1) | 2 (14.2) |
| Lateral incisor | 3 (21.4) | 3 (21.4) | 6 (42.9) |
| Canine | 1 (7.1) | 2 (14.3) | 3 (21.4) |
| Premolar (1st/ 2nd) | 0 (0) | 3 (21.4) | 3 (21.4) |
| Total | 5 (35.6) | 9 (64.2) | 14 (100) |