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Nasolabial fold
Compare the procedure groups used for this indication, ranked by evidence score. Grade reflects the volume and quality of research; direction reflects what the papers conclude.
| Grade | Score | Direction | Procedure group | RCT & meta | Clinical & observational | Case reports | Total papers |
|---|---|---|---|---|---|---|---|
| A | 67.9 | Supported | HA filler crosslinked | 99 | 29 | 32 | 262 |
| B | 54.2 | Supported | CaHA filler | 9 | 3 | 5 | 22 |
| C | 40.4 | Supported | Pdo PCL PLLA thread lifting | 0 | 2 | 4 | 15 |
| D | 34.3 | Insufficient | PCL filler | 0 | 0 | 0 | 1 |