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events | DGZI past President Dr Friedhelm Heinemann spoke about fixed restorations made from full- ceramics—tension-free and efficient. “There is a lot that works, however, you have to do it in the right way,” with this initial statement Dr Heinemann had the auditorium on his side. Oftentimes, dentists have to decide between a tension-free cementation that may be fraught with biological difficulties (cemen- titis), and screwing that comprises aesthetic disad- vantages and may cause tensions. He proposed a solution using both procedures: fabrication of the crown with a hole, cementing, and screwing. Dr Victor Clavijo who had been travelling from Brazil to the German capital, divided his lecture into three parts: experiences, evidence, and reproducibil- ity. In his lecture, he focused on the maxillary ante- rior teeth which are an aesthetically relevant zone. Thereby, he pointed out differences in the prosthetic treatment. His first take-home message was: “Keep the maxillary anterior teeth as long as possible!” If implants cannot be avoided any longer, he sug- gested to use diameter reduced implants preceded by a soft- and hard-tissue augmentation. His second take-home message was: “Always change an un- favourable initial situation to a favourable one, and only afterwards talk about implants!” Fig. 2 After the opening session, the congress partici- pants had ample opportunities to visit different po- diums; they could choose between the main podium, the international podium, and the corporate podium. Fig. 3 Biology and medication In the afternoon of the first congress day, one of the first lectures was presented by DGZI President Prof. Dr Deppe. He referred on benefits and limitations of dental implants in patients with systemic dis- eases. Thereby, he concentrated on cardiovascular diseases, diabetes, and immunodeficiency dis- eases. Despite inconsistent guidelines and ad- vices, Prof. Deppe concluded that patients with these diseases may be well treated with dental Fig. 1: View into the main podium of the 47th DGZI International Annual Congress. Fig. 2: (from left) Congress President Dr Roland Hille, Dr Stefan Wolfart and DGZI President Prof. Dr Herbert Deppe. Fig. 3: At the booth of the DGZI gold sponsor OT medical. implants given the respective disease is under con- trol. The same applies to old patients in a good over- all condition. Prof. Dr Weischer perfectly rounded off the lecture of his previous speaker by emphasising the meaning of biology in implant treatment of patients having pre-existing diseases. In case of patients undergoing an antiresorptive therapy, the individual risk poten- tial limits the decision of inserting dental implants— especially in long-term and intravenous administra- tion. Another risk for implant treatment is caused by long-term and high administration of cortisone. Thus, a careful anamnesis, well-balanced indication, and pre-operative antibiosis is crucial for the implant © YurkaImmortal/Shutterstock.com implants 4 2017 53