My hamster broke a tooth should i change the cage ?

[Willowknows]

I've only had my Syrian for about a month, she did cage bite at the start but I havnt seen or heard it since. Last night I noticed she has broke her bottom tooth. I call my vet she said wait a few day and see if it turns grey or she's not eating or drinking to bring her in. She has loads of toys and chews and the cage 80X50x50..... I don't know how she broke it, just wondering should I get a tank instead or wait and see if the cage was the cause ? Any suggestions would be great !! I feel so bad about her tooth I'll do whatever she need!!