Prof. Dr. Robert Gassner, a native of Innsbruck, Tyrol, Austria, received his medical and dental training at the University of Innsbruck, Austria. Following three years of residency in general and transplant surgery under Raimund Margreiter, including six months of general traumatology, he entered the specialty of oral and maxillofacial surgery under Ernst Waldhart in 1991. Having aquired.