Do the names Mint Chocolate Trek, Lime Spearmint Zest and Vanilla Mint Spark are known to you?

Ice cream? Cookies? Candy? No, this is a new line of toothpastes of the very well known Procter & Gamble.

New toothpaste flavors are associated with the Crest brand. 
Potential buyers lure the slogan "The whole new world of deliciousness wherever the brushing is done".
Procter & Gamble adds that the new line of toothpaste is aimed at the brave and open to new experiments, even in the case of oral hygiene. 
What was the cause of such a bold business decision? Apparently P & G is looking for a remedy for declining profits.