Can anchor worms infest the mouth?

[Zenna]

So I was looking at my little guy and he has anchor worms, but I looked at his mouth and I thought I seen something in it, so I waved a straw passed his mouth so he would open it and it looks like he might have anchor worms inside his mouth as well. Is this possible? How would I get rid of those ones? All answers are greatly appreciated

 

[Jennewt]

I don't know if they can get them in their mouth, but it seems like it could be possible. If you are using chemical treatment, it should get rid of them everywhere.