Walmart has the Pedigree Dentastix for $2.98 making them $1.98 after coupon. You can also use the dog food one get a bag for around $8-9 on a 8.8lb bag before coupon.
Target has the best deal for the Pedigree if you have the Target coupons to stack.
$1/2 Pedigree Dog Treats Target Coupon 7-22-12 RP x9/22
$2/1 Pedigree Dry Dog Food 15lb+ Target Coupon 7-22-12 RP x9/22
Here is the best deal on Pedigree DentaStix with the coupons to stack.
Buy (2) Pedigree DentaStix Fresh, Assorted Varieties is $2.99 x2= $5.98 (PC thru 8/25)
Use $1/2 Pedigree Dog Treats Target Coupon 7-22-12 RP x9/22
Stack with (2) $1.00 off one PEDIGREE DENTASTIX coupon
Final Price= $2.98 on 2 or ($1.49 each) after stacked coupons!