Medical leadership
DR. MED. DR. MED. DENT.
HANS KREHN
Specialist in oral and maxillofacial surgery
Physician · Dentist
See Understand Act
Hans Krehn is a physician, dentist, and specialist in oral and maxillofacial surgery, and medical director of MEDIKUSS in Hamburg. The dual qualification in human medicine, dentistry, and OMFS specialist training supports a joint reading of tooth, jaw, and face — not a blanket superiority over another specialty.
After studying human medicine and then dentistry at Semmelweis University in Budapest, he completed specialist training in oral and maxillofacial surgery at Charité Berlin, Campus Virchow Klinikum, under Prof. Dr. Dr. B. Hoffmeister.
For him, medicine and dentistry belong together. The view is not of a single structure, but of the interplay of proportion, expression, and personality. Minimally invasive solutions — including non-prep veneers — take priority when findings and biology allow. The 109FIFTY principles (Maximum precision · Minimal preparation) are documented on the specialist platform 109FIFTY. 109FIFTY does not treat patients itself; examination and treatment take place at MEDIKUSS in Hamburg.
In implantology, his specialist qualification links assessment of bone, soft tissue, and later prosthetics. Immediate implantations and short implants are reviewed individually as possible effort-limiting options — not as a blanket promise.
Qualifications
- Specialist in oral and maxillofacial surgery
- Physician and dentist
DR. MED. DR. MED. DENT. HANS KREHN is a specialist in oral and maxillofacial surgery as well as a physician and dentist.
Postgraduate training
DR. MED. DR. MED. DENT. HANS KREHN holds the postgraduate training authorisation for oral and maxillofacial surgery (Hamburg Medical Association). Under this authorisation, postgraduate training assistants can complete up to 24 months of training at the practice.
Career path
- 2001–2008Medical studies, Semmelweis University, Budapest
- 2007–2011Dental studies, Semmelweis University, Budapest
- 2011–2013OMFS training assistant, Klinikum Nürnberg-Süd (Prof. Dr. Dr. M. Farmand)
- 2013–2016OMFS training assistant, Charité Universitätsmedizin Berlin, Campus Virchow Klinikum (Prof. Dr. Dr. B. Hoffmeister)
- 2016–2017Employed physician and dentist, practice Dr. R. Zerweck, Bremerhaven
- 2017Specialist in oral and maxillofacial surgery
- 2018–2019Employed OMFS specialist, Maxillofazialikum / practice Dr. M. Suhr, Hamburg city centre
- Since 2019Founding and leadership of MEDIKUSS, facial surgery / oral and maxillofacial surgery, Hamburg city centre
Connected concepts
Press and publications
Source of biographical details: public information from MEDIKUSS Hamburg and the register of the Hamburg Medical Association (as retrieved 08/2026).
Clear answers
Frequently asked questions
What are the medical director’s qualifications?+
DR. MED. DR. MED. DENT. HANS KREHN is a specialist in oral and maxillofacial surgery as well as a physician and dentist.
Do minimally invasive options take priority?+
Minimally invasive options — including non-prep veneers — take priority when findings and biology allow.
Can postgraduate training assistants train at the practice?+
DR. MED. DR. MED. DENT. HANS KREHN holds the postgraduate training authorisation for oral and maxillofacial surgery (Hamburg Medical Association). Under this authorisation, postgraduate training assistants can complete up to 24 months of training at the practice.
What is 109FIFTY in relation to MEDIKUSS?+
109FIFTY is a treatment philosophy and a specialist information platform and does not provide medical services. Examination and treatment take place at MEDIKUSS in Hamburg.
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