Happy brand name created for any product or service that brings u a "smile" to one's face.
The name "MissionSmile" has 12 letters and three syllables. Successful brands using three syllable names include Microsoft, McDonald's and Verizon.
Missionsmile.com is a dot-com domain. Dot com domains are the most popular, and the most desirable. Once secured, a dot-com all but guarantees no-one else can outrank you for your own name in the long run.