My daughter is 3.5 yrs old. I had noticed two days back that her front middle bottom tooth is a bit shaky..is it not early to get her tooth broken. I asked her manier times that something happened in school but she didn't told anything. Today she told yes I got hurt by the door. Her right side back bottom two teeths are also having cavity which I noticed that day only as they have turned brown. What should I do..pls suggest.