A healthy smile is not critical for first impressions, it’s an indicator of a longer life. White teeth and clean gums can not only make consumers look years younger, but add years to their life, according to a recent study from the Oral Health Foundation.   Originally developed for Australian actors and models, White Glo has become a global leader in teeth whitening technology. Launched in 1995 and available in 50 countries, the dentist-approved brand has finally landed in the US and is ...