How can my loose tooth be fixed? Was suggested braces. (photos)

I went to the dentist and I was told it wasn't gum disease., but she did say I have some bone lost . I was also told it could be trauma from my prior braces wear. My dentist put some Resin between the tooth and suggested I get braces again since the tooth has separated from the other teeth. My tooth is still loose and I don't think putting braces on , will fix that. I'm not confident that my dentist is doing a good job and would like some other opinions.