Dr. Zase is accredited with the American Academy of Cosmetic Dentistry, meaning that he has demonstrated skill and artistry in cosmetic dentistry at the highest level. He was president of the AACD 2006-2007, and is also an accreditation examiner and lectures internationally on cosmetic dentistry. He also serves on the editorial boards of several dental journals and has published numerous articles. He is also famous for the colorful Hawaiian shirts that he wears.