What oral piercings cause least damage to gums and teeth?

My family history consists of terrible teeth. No matter what we do, our teeth just give us problems. I would love an oral piercing. However, my gums are already receding and my teeth already suck, despite proactive care and good hygiene.

Are there any oral piercings that do little damage or any way to prevent it?
What oral piercings cause least damage to gums and teeth?
Post Opinion