PopCap continues the fight against poor dental hygiene with the next step of its “Stop Zombie Mouth” campaign, which began earlier this month.

A limited run of 1 million packs of trading cards featuring characters from Plants Vs. Zombies are on their way to thousands of dentists nationwide. Each pack also includes a coupon redeemable for a free copy of Plants Vs. Zombies on PC or Mac. 

Coupons can also be downloaded for free at stopzombiemouth.com