unless the nail matrix was damaged from the injury your nail should eventually regrow over the next few months. since i have no way of examining you to know the status of the matrix (the special cells at the base of your nails that form the nails) you may just have to hope and wait.
can you regrow all of your nail. i recently got fake nails and got them caught on something which caused all of my nail to come off. just wondering will i ever have real nails again or am i sol lol. if i can regrow it back about how long will ot take?