Share this video so others can see. How to get more teeth 1 Tooth - Every 300 Kills (Instead of 600) 2 Teeth - Every 10 completed challenges 4 Teeth - Completing every challenge (If I fail I always get 10, if I achieve it I always get 14) 1 Tooth - Per relic Thank you Zuxun for the information. Zuxuns Channel On August 8th there was a silent update with the Extinction Teeth System. Now you earn almost three times as many teeth as you would normally. The highest Ive seen was 19 teeth in one game.