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Woven bone scoring key.
| Score | Description |
|---|---|
| 5 (good) | Past woven bone stage |
| 4 | Abundant woven bone |
| 3 | Woven bone becoming organized into trabeculae |
| 2 | Moderate osteoid ECM between osteoblasts |
| 1 | Scant osteoid ECM deposition between mesenchymal cells |
| 0 (bad) | No bone formation |
ECM: extracellular matrix.
