Table 3.
Quality assessment for all treatment modalities (modified from Plachokova et al., 2008 [32] and Vignoletti, 2011 [33]).
| Quality assessment items | Yes/no | Alveolar ridge or socket preservation | Sinus augmentation | Periodontal bony defect |
|---|---|---|---|---|
| Adequate sequence generation | Y | 1 | 4 | 7 |
| N | 5 | 12 | 13 | |
| Allocation concealment | Y | 1 | 4 | 4 |
| N | 5 | 12 | 16 | |
| Describe as randomized | Y | 3 | 12 | 16 |
| N | 3 | 4 | 4 | |
| Describe clear randomization methods | Y | 2 | 2 | 6 |
| N | 4 | 14 | 14 | |
| Describe control group | Y | 6 | 16 | 20 |
| N | 0 | 0 | 0 | |
| Blinding participant and/or examiner | Y | 2 | 3 | 5 |
| N | 4 | 13 | 15 | |
| Describe inclusion and exclusion criteria | Y | 2 | 12 | 14 |
| N | 4 | 4 | 6 | |
| Patient follow-up related to completed outcome data | Y | 5 | 11 | 16 |
| N | 1 | 5 | 4 | |
| Validity of statistical methods: sample calculation | Y | 1 | 8 | 4 |
| N | 5 | 8 | 16 | |
| Validity of statistical methods: power of statistic | Y | 4 | 12 | 18 |
| N | 2 | 4 | 2 | |
| Validity of outcome and estimation | Y | 6 | 16 | 20 |
| N | 0 | 0 | 0 | |
| Risk of bias: high | 5 | 15 | 18 | |
| Moderate | 0 | 0 | 1 | |
| Low | 1 | 1 | 1 | |
| Total | 6 | 16 | 20 |