We're sisters, best friends, and co-CEOs. Here's a day in our lives running our dental tech company.

Dr. Haley Abivardi and Dr. Goly Abivardi. Jos Schmid This as-told-to essay is based on a conversation with Dr. Haley Abivardi, DMD (above, right), and Dr. Goly Abivardi, DMD, the 56- and 52-year-old co-CEOs and founders of vVardis, based in Zug and Zurich. It's been edited for length and clarity. We're sisters and best friends who founded vVardis, a healthcare company in the dental med-tech space. Dr. Haley oversees the financial part of the business, Dr. Goly manages tech, and the rest we d...