Table 1. | Focus question 1 development according to the PICOST |
| Component | Description |
|---|---|
| Population (P) | Humans |
| Intervention (I) | Extraction socket |
| Comparison (C) | With or without membranes |
| Outcome (O) | Radiological, histological, histomorphometric or clinical |
| Study design (S) | Clinical trial; randomized controlled trial |
| Time (T) | 6 months |
| Focus question | "Are there radiological, histological, histomorphometric or clinical differences in humans extraction socket preservation when we are performed with and without membranes with a follow-up of at least 6 months?" |
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