Wait, now I know the answer to this. I saw Bruce Willis having to complete the same task in "Twelve Monkeys".
Ok, so let's see... Okay, so he goes into the bathroom... and... He's got a knife! And then, he goes in, and... closes the door. And then they cut to Madeline Stowe's face, and you hear some screaming from the bathroom.
Hmmm, I thought they showed- Oh yeh! They then cut BACK to the bathroom, and you see that the screaming is coming from some unsavory street urchin-type that Bruce had thrown in the tub in an earlier scene. And he starts saying "What the FUUUCK are you DOING, man!!!" And he's all scared now, like wicked, wicked creeped out, and you know Willis is doing some weird shit.
And, then he comes out of the bathroom, with like one bloody hand cupped in the air, and as he strides toward the camera, you see that he's got several teeth in there. Then he says, "Just...just in case. In case I'm not crazy...(holds up the bloody molars)That's how they find us. By our teeth. I don't want them to find me. Ever. I don't want to go back." And then they like blow right the hell out of there, cause it was like a bad scene, seriously.
So, that's everything I know about the autoextraction of wisdom teeth. Hope this helps.
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Ham-fisted ham fisting.