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| research 18 implants 3 2016 ing dental implants, dentists, not only in Europe, should act in accordance with what is said to be a Lenin citation which claims that trust is good, but control is a lot better. The CleanImplant Foundation, an international non-profit organisation, will continue and extend the periodic analyses of dental implants all over the globe in order to provide dentists with independent research results and evaluate improvements in the manufacturing process of previously analysed im- plants. More information and a correspondent newsletter is available at the project´s homepage www.cleanimplant.com_ Literatureavailablefromtheauthor. Fig. 17 Fig. 19 Fig. 18 Fig. 20 Fig. 21 Fig. 22 C Atomic percentage Certainty 74.4 % 0.99 Ti 21.8 % 1.00 Al V 2.9 % 0.98 0.9 % 0.97 Tab. 6 Ti Atomic percentage Certainty 81.7 % 1.00 Al 14.5 % 0.99 V 3.8 % 0.95 Tab. 7 Fig. 17: Allfit KOS, x500. – Fig. 18: Major aluminum oxide particle, x2,500. – Fig. 19: Allfit KOS, machined thread, x2,500. – Fig. 20: EDX analysis of organic material, x10,000. – Fig. 21: Qualitative elemental analysis of spot # 1 in Fig. 20. – Fig. 22: Qualitative elemental analysis of spot # 2 in Fig. 20. – Tab. 6: Quantitative elemental analysis of spot # 1 in Fig. 20. – Tab. 7: Quantitative elemental analysis of spot # 2 in Fig. 20. contact Dr Dirk U. Duddeck Managing Director CleanImplant Foundation Guest Researcher at Charité University Medicine Berlin Campus Benjamin Franklin – Department of Prosthodontics CleanImplant Foundation Am Brandenburger Tor Pariser Platz 4a 10117 Berlin, Germany duddeck@cleanimplant.com www.cleanimplant.com Dr Franz-Joseph Faber Department of Preclinical Dentistry Material Science, University of Cologne Kerpener Str. 62, 50937 Köln, Germany 32016