The Social Six refers to the top front 6 teeth and implies that by treating only these teeth, a smile improvement can be achieved. Unfortunately, this can lead to an obviously artificial-looking smile, which most of us do not want. The truth is that most people show at least 8 upper teeth when they smile and at least 6 lower teeth when they talk!
For the most natural-looking smile (which most of us DO want), it is usually better to treat 2, 4, 8, or 10 upper teeth and make sure the bottom teeth match. Veneers, whitening, bonding, or small movements of teeth with Invisalign can also help create a great smile. Natural and life-like options are chosen based on how well they will complement both your smile and your unique facial features.
An experienced and dedicated cosmetic dentist will take many pictures and video of your face and smile to decide which options will work best to meet your goals. Your consultation should include a picture comparison of your teeth with multiple other patients, whose teeth are similar to yours, that the cosmetic dentist has personally treated.