Did you file an incident report with Main Event? They may have insurance which will help with the cost of repairing her tooth. I had an accident at our church, where a football came over a temporary wall in our gym, and our church's insurance paid for my visit to my eye doctor (I had just recently had eye surgery). I would suggest going ahead and calling Main Event and asking them if they have insurance to help cover such costs. (They should!) But in order for them to help you with the costs, the incident should be reported ASAP.
Your daughter's dentist may have to make a crown, which will involve filing down the broken tooth, as well as having a mold made of her teeth. However, with all of the advances made in the last 20 years in dentistry, I can't tell you exactly what they will do. The dentist will be able to explain everything to you, and answer any questions you and your DD may have. Be sure and ask, though, how long the "new" tooth should last, and if she will have to have it replaced sometime down the line. (My bridge is 21 years old, now, and should've been replaced 10+ years ago, but I'm still doing ok with it, and really just now NEEDING to replace it.) I can tell you that the repair will probably NOT be noticeable, and if it is, everyone will just think it's an "improvement".
Good Luck with this!