It usually takes about from six months to five months.
usually it takes from 4 to 5 months to grow back depending on how fast your teeth grow.
My guinea pigs tooth fell out, and surprisingly it grew fully in just three weeks!
Hair grows at an averate rate of 1/2 inch per month. So depending on how long it was and how short you cut it, you can go by that to help determine when your hair will be back to the length you want...