Function toLabel

toLabel(fdiTooth: string | number, system: NumberingSystem): string
Convert an FDI tooth number to the label for the requested numbering system.
Parameters
- fdiTooth: string | number
  Tooth number in FDI notation (e.g. 14, 55). Accepts a string that can be parsed as a number.
- system: NumberingSystem
  The target numbering system ("FDI", "UNIVERSAL", or "PALMER").
Returns string
The formatted label (e.g. "5" for Universal, "UR-4" for Palmer). Returns the input as-is when it cannot be mapped.
Example
```
toLabel(14, "FDI");       // "14"
toLabel(14, "UNIVERSAL"); // "5"
toLabel(14, "PALMER");    // "UR-4"
toLabel(55, "UNIVERSAL"); // "A"
```
- Defined in utils/numbering.ts:47