If it’s loose that’s a danger sign and definitely should be evaluated by a dentist ASAP.
Yes, it’s possible that it will tighten up in a week or so but it’s equally possible that it will both. Only a dentist can tell you that after evaluation. There is really no way that you can tell independently whether it’s just minor damage or something worse. If you guess wrong you’ll be wishing later that you had let a dentist decide.
I had a situation once where two of my 3rd graders accidentally collided on the playground. One was slightly shorter than the other so we had teeth colliding with forehead.
Initially the focus was upon the kid whose forehead was bleeding. Afterward I checked out the child who had collided with him who was quietly resting at his desk.
I remembered from reading that loose teeth CAN signal a major problem and should be evaluated within 12–24 hrs. Absolutely no longer.
And sure enough, even tho it didn’t hurt to move them, his front teeth were loose. So I told the office to keep persisting until they reached one of his parents to come get him.
I told his mother to be absolutely certain that he get evaluated by a dentist.
Long story short, she took him to the ER and insisted that in addition to whatever else they do, he needed to be seen by a dentist. By that time it was getting pretty late in the day so the person who was in call was the head of the Pediatric Dental clinic affiliated with the hospital.
A few days later the kid comes back with a mouthful of metal and a grateful mother. These were his permanent teeth and had they not been immediately supported by the bracework (they weren’t finished until well into late evening) he almost certainly would have lost them.
So, better safe than sorry. Get it checked out by a dentist ASAP. Hopefully you’ll have better luck.