He is Professor and Chairman at Department of Prosthetics and Oral Function, Faculty of Dentistry, University of Oslo (Norway).

He is co-inventor of Osseospeed™ dental implant (Dentsply Sirona Inc, USA); Solidox Hvite Tenner and Solidox Frisk Pust toothpastes (Lilleborg AS, Norway); and SB12 mouthwash (former Solidox Frisk Pust mouthwash) (SB12 AB, Sweden). He was co-founder and Chairman of the Board of Corticalis AS (Norway).

He has received several awards, including the William R. Laney award in 2006 and the University of Oslo – Birkeland Innovation Award in 2009.