Wisdom teeth

[Edy]

so, the external side of one of my wisdom teeth has a cavity. It's placed right at the bottom, at the level of the gum. Should i extract my tooth? Or is it nothing too bad and it can wait?

 

[MattKW]

Extract. You got a cavity in it because it's hard to clean.

1. Even if you get it filled, will you be able to keep it clean for the rest of your life?
2. Does it function/fit well against the opposing wisdom tooth? If not, then what is the use of keeping it?
3. It6 is extremely rare that I see people keep their wisdom teeth into old age. If I have to extract them in old age, they usually have medical conditions, medications, and poor healing outcomes that make me wish they'd removed them by 30yo at latest.