1987, 1992, 1994 Research science awards of the German Society of Periodontology (DGP) in Baden-Baden, Berlin and Stuttgart. 1998 Willoughby D. Miller Scientific Award of the German Society of Dental, Oral and Craniomandibular Sciences (DGZMK) for his PhD equivalent (Habilitation) Klinische, biochemische und mikrobiologische Parameter zur Diagnose und Therapiekontrolle am Modell der chronischen und aggressiven parodontalen Entzündung und der parodontalen Regeneration (Clinical, biochemical and microbial parameters guiding diagnosis and therapy in chronic and aggressive periodontal inflammation and regeneration) in Bremen.