Markus Schlee runs a private practice specialized in periodontology and implantology in Forchheim, Germany, since 1990. He holds the specialist qualifications in periodontology (DGP) and implantology (BDIZ and DGI) .He is a member of numerous professional associations, including Neue Gruppe, DGP, DGI, AAP, IADR, ECDI, DGÄZ and APW. He received his external professorship at Goethe University of Frankfurt in 2015 and is still affiliated there. He lectures in the masters programs of Goethe University Frankfurt (MOI), DGI at Steinbeis University Berlin, DGP at Dresden International University and DGÄZ at the University of Greifswald. He has lectured and published extensively, both nationally and internationally, in the fields of periodontology, implantology, peri-implantitis bone augmentation, soft-tissue management, microsurgery, piezosurgery, and esthetics.