i would get your daughter to a dentist asap for an examination. it’s possible that the tooth was ready to come out. it’s also possible that it is a permanent tooth with a bigger pre-existing problem. the only way to find out is by having her see the dentist.
my daughter had dental floss stuck between her 2nd to last molar and the tooth popped out. is this a baby tooth? . it looks like the tooth broke off instead of coming all the way out. she is 10 almost 11.