- Histological scoring of the cases.
| Groups | Epithelial regeneration | Inflammation | Angiogenesis | Fibroblast proliferation and collagen deposition |
|---|---|---|---|---|
| Control group | ||||
| C1 | 1 | 2 | 2 | 3 |
| C2 | 1 | 3 | 2 | 4 |
| C3 | 2 | 4 | 2 | 3 |
| C4 | 2 | 3 | 2 | 2 |
| C5 | 1 | 3 | 2 | 2 |
| C6 | 2 | 4 | 2 | 4 |
| C7 | 1 | 4 | 2 | 3 |
| Dexpanthenol group | ||||
| D1 | 1 | 2 | 2 | 2 |
| D2 | 2 | 3 | 2 | 3 |
| D3 | 2 | 3 | 2 | 2 |
| D4 | 2 | 2 | 2 | 1 |
| D5 | 1 | 3 | 2 | 3 |
| D6 | 1 | 2 | 3 | 4 |
| D7 | 2 | 3 | 3 | 2 |
| Alpha-lipolic acid group | ||||
| A1 | 2 | 2 | 2 | 3 |
| A2 | 1 | 2 | 3 | 1 |
| A3 | 1 | 3 | 2 | 1 |
| A4 | 2 | 2 | 2 | 2 |
| A5 | 2 | 2 | 3 | 2 |
| A6 | 2 | 3 | 3 | 3 |
| A7 | 2 | 2 | 2 | 1 |
The numbers in the groups indicates the rat’s number. Ehrlich/Hunt numerical scale: “0” for absence; “1” for occasional presence; “2” for light scattering; “3” for abundance; and “4” for confluence of cells or fibers.5 Epithelial regeneration: “0” no epithelium; “1” single-layer epithelium with a partial closure; and “2” stratified epithelium with complete closure (according to Loewen’s study).6