Medical leadership
DR. MED. DR. MED. DENT. HANS KREHN
Specialist in Oral and Maxillofacial Surgery (Germany)
Physician · Dentist
MEDISMILE
Hans Krehn is a physician, dentist and specialist in oral and maxillofacial surgery, and medical director of MEDISMILE in Budapest.
After studying human medicine and dentistry at Semmelweis University in Budapest, he completed OMFS specialty training at Charité Berlin (Campus Virchow Klinikum) under Prof. Dr. Dr. B. Hoffmeister — following earlier specialty training in Nürnberg.
Medicine and dentistry belong together for him. Minimally invasive solutions — including non-prep veneers in the sense of the connected 109FIFTY concept — take priority when findings allow.
In implantology his specialty links bone, soft tissue and later prosthetics. Immediate and short implants are assessed individually. He is a specialist in oral and maxillofacial surgery (Germany), authorised by the Ärztekammer Hamburg (Hamburg Medical Association) to provide specialist training. The Hamburg chamber does not supervise this Budapest practice.
Medical leadership: DR. MED. DR. MED. DENT. HANS KREHN, physician, dentist and specialist in oral and maxillofacial surgery; medical director of MEDISMILE Budapest.
DR. MED. DR. MED. DENT. HANS KREHN holds German licences to practise as a dentist (NiZzA, 29 Sep 2011) and as a physician (NiZzA, 30 Sep 2011), is a specialist in oral and maxillofacial surgery (Germany; specialist recognition Ärztekammer Bremen, 19 April 2017) and is authorised by the Ärztekammer Hamburg (Hamburg Medical Association) to provide specialist training (Mund-Kiefer-Gesichtschirurgie, 24 months, WBO 05; public register retrieved 14 September 2026). The Hamburg chamber does not supervise MEDISMILE in Budapest.
MEDISMILE starts as lightly as biology allows: substance-sparing steps, including additive non-prep veneers when enamel, bite and proportions support them.
Connected concepts
Qualifications
- Specialist in Oral and Maxillofacial Surgery (Germany)
- Specialist recognition, Ärztekammer Bremen (19 Apr 2017)
- Licence to practise as a dentist, NiZzA Lower Saxony (29 Sep 2011)
- Licence to practise as a physician, NiZzA Lower Saxony (30 Sep 2011)
- Physician and dentist
- Authorised to provide OMFS specialist training (Ärztekammer Hamburg, Hamburg Medical Association)
- DGBT lecturer / member
Ärztekammer Hamburg — authorised trainers register (Hamburg Medical Association) ↗ · Verified MKG listing (retrieved 14 Sep 2026) ↗
Clinically reviewed pages
Hans Krehn clinically reviewed and approved the following treatment pages on 7 September 2026.
Career
- 2001–2008Medical studies, Semmelweis University, Budapest
- 2007–2011Dental studies, Semmelweis University, Budapest
- 2011Approbation as dentist, NiZzA Hannover (29 Sep 2011)
- 2011Approbation as physician, NiZzA Hannover (30 Sep 2011)
- 2011–2013OMFS resident, Klinikum Nürnberg-Süd (Prof. Dr. Dr. M. Farmand)
- 2013–2016OMFS resident, Charité Universitätsmedizin Berlin, Campus Virchow Klinikum (Prof. Dr. Dr. B. Hoffmeister)
- 2016–2017Physician and dentist, practice Dr R. Zerweck, Bremerhaven
- 2017Specialist in oral and maxillofacial surgery, Ärztekammer Bremen (19 Apr 2017)
- 2018–2019Specialist, Maxillofazialikum Hamburg (practice Dr M. Suhr)
- 2019–2023Founding of MEDIKUSS facial surgery in Hamburg (separate practice)
- Since 2023Founding and medical leadership of MEDISMILE Budapest
Press
Biographical details from public profile pages (as of 08/2026). MEDISMILE Budapest is a separate practice from MEDIKUSS Hamburg; 109FIFTY is an outbound connected concept only.
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Frequently asked questions
What role does Hans Krehn have at MEDISMILE?+
Medical leadership: DR. MED. DR. MED. DENT. HANS KREHN — physician, dentist and OMFS specialist; medical director of MEDISMILE Budapest — teeth, bone and face planned as one system.
How invasive is the starting point?+
As light as the case allows. Non-prep veneers and other substance-sparing options come first when findings support them.
Where do I read about implantology?+
Under OMFS & surgery for the medical framing; dentistry keeps only short pointers so the full-mouth picture stays complete.