Happy brand name created for any product or service that brings u a "smile" to one's face.
The word "MissionSmile" contains 12 letters and three syllables. Three syllable names are used by established brands like Toshiba, Armani and Mastercard.
Missionsmile.com is a .com domain. Dot com domains are the most desirable domain extension in the world, famously used by websites like twitter.com. Once you own a .com, it will be much easier to rank for your own name in Google.