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Dirk Duddeck

Why contaminated implants can put the result of your digital planning at risk

The surface of dental implants determines the initial phases of the biological response to the implant and affects its ability to integrate into the surrounding tissue.

In four consecutive studies since 2007 more than 300 different, sterile-packaged dental implants were analyzed by scanning electron microscopy and elemental analysis (EDS). Nearly 50% of all analyzed implants in 2019 showed a wide variety of organic and/or inorganic impurities containing iron, copper, tin, chromium, tungsten, antimony and nickel. Additional Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) analysis revealed polysiloxanes, polyethylene and even hazardous surfactants on sterile dental implants.

The short lecture not only illustrates the clinical context with peri-implantitis but also separates the wheat from the chaff. Participants will receive clear information about the differences in quality that highlights the need of a new standard of purity for dental implants.

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About Dr. Dirk U. Duddeck, Dr. med. dent. (D.D.S.)


  • 1983-1985 University of Konstanz, Bachelor of Science in Biology

  • 1985-1992 Dental School University Berlin and Heidelberg, Germany

  • 1992 Certification as Dentist

  • 1992-2015 Dep. for Craniomaxillofacial and Plastic Surgery, University Heidelberg, Interdisciplinary Dep. for Oral Surgery and Implantology, University of Cologne, Germany,

  • 2009 Doctorate Dr. med. dent.

  • Since 2012 Implantologist in a private practice in Berlin, Germany

  • Since 2014 Founder and managing director of MMRI.BERLIN, the independent Medical Materials Research Institute, officially accredited as testing laboratory according DIN DIN EN ISO/IEC 17025, specialized in implant material analyses.

  • Since 2016 Guest researcher at the Charité University Medicine Berlin / Campus Benjamin Franklin; Department of Prosthodontics

  • Since 2016 Managing director of the CLEANIMPLANT FOUNDATION, non-profit organization, periodical quality assessment studies in implant dentistry, promotion of the “Trusted Quality Mark” for dental implant systems.

Clean Implant Foundation

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