Our smiles are often our signature, and a genuine smile carries through into the way we carry ourselves and even the spark in our eyes. It means so much and it's a sign of friendliness, which is an important factor in opening up opportunities for greater happiness and fulfillment. In a world where we should be using our smile to change the world, we need to be mindful of how losing our smile can change us. Dr. Bryce Gates is aware of this every single day when he goes to work and with every patient that he meets.

Imagine how wonderful it would be to go from covering up your...