Believe it or not this is a genetically controlled condition ~ and if you've ever paid for a child's braces you can imagine what that's like because the minute everything is perfect and the braces come off the teeth go on about their business.
I've got a tooth that's taken about 50 years to do a total rotation ~ and yet it's still crooked ~ has its own axis!
A larger than normal frenulum is a typical cause...often requiring a frenectomy...
A frenectomy (also known as a frenulectomy or frenotomy) is the removal of a frenulum, a small fold of tissue that prevents an organ in the body from moving too far. It can refer to frenula in several places on the human body. It is related to frenuloplasty, a surgical alteration in a frenulum.
A frenectomy can also be performed to remove a section of tissue (the frenulum) that attached to the gingival tissue between two teeth.
Now that sounds downright annoying!