1 Plasma donors may donate as often as every 28 days. 2  Platelets donors may donate as frequently as every eight days, and up to 24 times in a 12-month period. 3  Double Red Cell donors maybe donate as often as every 168 days.
In some cases, perfectly straight teeth can become crooked with age, as the structure of your mouth changes, or due to tooth loss and movement of the remaining teeth. Teeth straightening can be achieved by a variety of different cosmetic dental techniques.
They may straighten out when her other adult teeth come in. I think baby teeth are a different size than adult teeth. If her teeth do grow in crooked, don't be too worried. Many kids have crooked teeth. You can always talk to her dentist.