Dr. Geissberger graduated from the University of the Pacific in 1991 obtaining his dental degree and was elected to Omicron Kappa Upsilon as a student. He immediately returned to the school and taught for 27 years, obtaining the rank of Full Professor. He obtained a Masters of Arts in Educational Psychology from the University of the Pacific. From 2000-2015 he served as Department Chair of Restorative Dentistry. As he transitioned back into fulltime practice he became an Adjunct Clinical Professor in the Department of Preventive and Restorative Dentistry at the University of the Pacific from 2018 to 2021. He directed the University’s Aesthetic and Complex Care Clinic and teaches many hands-on CE courses in Restorative Dentistry. Dr. Geissberger has served as President of the National Chapter of Omicron Kappa. Dr. Geissberger has numerous publications including a textbook titled Esthetic Dentistry in Clinical Practice for Wiley-Blackwell. He has presented nationally and internationally giving over 500 continuing education programs. Additionally, he is a certified personal trainer. He maintains a private practice focusing on reconstructive and esthetic dentistry in Greenbrae, CA.