Not a lot, you're pretty much dosed up to the max, you can only have 2 x 500mg paracetamol tablets every 6 hours, and Ibubrofen you can have every 400mg every 2 hours, maxing out at 1200mg daily.
However, you shouldn't really be mixing paracetamol AND ibuprofen, you should be on one or the other.
I'm assuming by tooth ack you mean tooth ache. Don't eat much, or only eat soft foods. Try applying something to the area that has a numbing effect, maybe bonjella or simply very cold water/ice.