There is a March Walgreens EasySaver rebate for $10 Dr. Katz Perio Therapy Gum Care System. In some areas there were $8 coupons in the 1/27 paper inserts or you can find a $5 printable coupon here. Check the box before buying, but I'm hearing reports of a $10 mail-in manufacturer's rebate. The manufacturer's rebate expires March 1, 2008.
Before your order is rung up, make sure you request a rebate receipt. It will print an extra receipt that may be mailed in for the manufacturer's rebate, then your original may be sent to Walgreens for the EasySaver rebate.
Note: The normal price for this item is 19.99. However, some managers apparently have the kit on megasaver for $10 all month long. At that price, this would be a moneymaker (with the coupon) even if you missed the manufacturer's mail-in rebate.