Happy brand name created for any product or service that brings u a "smile" to one's face.
The name "MissionSmile" has 12 characters and three syllables. Established brands using three syllable names include Armani, Sainsbury's and Heineken.
Missionsmile.com is a .com domain. Dot com domains are the most prestigious top-level-domain in the world, famously used by websites like google.com. Once you own a .com, it will be much easier to rank for your own name in Google.