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The physical and mechanical properties of the prosthetic components govern the success of the long-term restoration. Resistance to occlusal loads such as masticatory movements and para- function should be adequate to allow denture sur- vival. The modulus of elasticity and bending resis- tance of the material should be adequate to prevent undesirable fractures or micromove- ments.13 Furthermore, components used require a high degree of biocompatibility to prevent the occur- rence of abnormal tissue reactions such as initial peri-implant inflammation and mucositis, which may result in more severe complications such as peri-implantitis.14 Polyetheretherketone (PEEK) is a polymer from the polyaryletherketone family, a relatively newly developed family of high-tem- perature thermoplastic polymers having of an aromatic backbone interconnected by ketone and functional ether groups.1 In medicine, PEEK has been found to be an excellent substitute for tita- nium in orthopaedic applications15,16 and has been used in dental implants, provisional abutments, implantsupported bars, or clamp material in re- movable dentures.17,18 PEEK is biocompatible and has a natural tooth-coloured appearance, unlike metal reconstructions. Ceramically reinforced PEEK materials were de- veloped to improve the mechanical properties and the colour of dental restorations. One of these materials is BioHPP (bredent medical, Senden, Germany). In abutments, the BioHPP is directly injectionmoulded to a titanium base and forms a monolithic hybrid abutment called “elegance” abutment, with a screw seat in titanium for long- term stability plus a resilient body made of ceram- ically reinforced PEEK. To shorten procedures and eliminate interme- diate prosthetic steps, digital technologies were developed that allow the intraoral scanning of models and attachments with a high degree of precision and reproducibility. Chairside CAD/ CAM systems such as CEREC (Sirona) allow direct scanning of the abutments and the realization of immediate crowns. The ceramically reinforced hybrid abutments with a PEEK body and titanium base are easily scannable, yielding restorations of high quality with a good prognosis. Problems caused by removing and reinserting different research | AD 47TH DGZI INTERNATIONAL ANNUAL CONGRESS ONLINE CONGRESS PROGRAMME Fax Reply +49 341 48474-290 29./30. September 2017 Berlin – Maritim Hotel F O R T T K N U E16 B ILDUN G S P INTERNATIONALER JAHRESKONGRESS DER DGZI 29. | 30. SEPTEMBER 2017 MARITIM HOTEL BERLIN Spielt die Biologie noch eine Rolle? www.dgzi-jahreskongress.de I would like to receive further information on the 47TH DGZI INTERNATIONAL ANNUAL CONGRESS Theme: Does biology still play a role? Organiser / Scientifi c chair: Prof. (CAI) Dr. Roland Hille Organisation: OEMUS MEDIA AG Holbeinstraße 29 | 04229 Leipzig Tel.: +49 341 48474-308 | Fax: +49 341 48474-290 event@oemus-media.de | www.oemus.com Title, Surname, Name E-mail address (for digital programme) Stamp 7 1 / 2 M I Holbeinstraße 29 · 04229 Leipzig · Tel.: +49 341 48474-308 · event@oemus-media.de O EM U S M E D I A A G