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Nenad Popović – Dr .stom./Univ. Belgrad

Studied dental medicine in former Yugoslavia (Sarajevo and Belgrade) from 1987 – 1992. Dr. Popović has been working with Douglas Toll since 1996. From 2004-2007 orthodontic training under Prof. Fischer-Brandies/ Kiel and with Douglas Toll, D.D.S./ Bad Soden. Orthodontic practice owner and Douglas Toll's business partner since 2009. Scientific collaboration with the university in Kiel and Greifswald, and with the university in Podgorica (Montenegro). Since 2013 guest professor at the universities Marilia (UNIMAR) und Sao Paulo, Brazil.

Certified for Invisalign

Certified for the STB lingual system

Memberships:

• Deutsche Gesellschaft für Kieferorthopädie (DGKFO)
• World Federation of Orthodontists (WFO)
• American Association of Orthodontists (AAO)
• European Orthodontic Society (EOS)

Dr. Frank Christian Lissel

From 2001 - 2004: trained as physiotherapist in Stuttgart. Student of dental medicine at the Ruprecht-Karls-Universität in Heidelberg from 2008 - 2013. Licenced as dentist in November 2013. From 2014 - 2016: worked in Mannheim as general dentist, with focus on prosthodontics and aesthetic dental medicine. Graduation as doctor of dental medicine (Dr. med. dent.) in November 2015. From March 2016: assistant dentist at the orthodontic practice Popovic & Colleagues. From 2017: postgraduate programme in orthodontics run by the Hessian State Chamber of Dentistry associated with the universities of Frankfurt, Marburg and Gießen.

Memberships:

• Deutsche Gesellschaft für Kieferorthopädie (DGKFO)
• Deutsche Gesellschaft für Zahn-, Mund- und Kieferheilkunde (DGZKMK)
• Berufsverband Deutscher Kieferorthopäden (BDK)
• Deutsche Gesellschaft für Linguale Orthodontie (DGLO)
• European Orthodontic Society (EOS)