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.
Complications. If the crack gets bigger, a piece of the tooth may break off. Thereâs an increased risk of developing an infection in the gum around the fractured tooth. You may notice a pimple-like bump on the gum near the tooth, an abscess. If you notice this, please see your dentist for an oral care evaluation.