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ePaper created 2017-11-09, 09:28:26 | version 1.38.0
| overview Fig. 7 Fig. 8 Fig. 9 Fig. 10 Fig. 11 Fig. 12 Figs. 7–9: Case 2: A Z5m implant inserted in region #25 is an example for long-term success. Figs. 10–12: Case 3: A Z5m(t) implant was inserted in region #15. tween the implant crown and the natural or artificial crown of the adjacent tooth. The implant in this case was placed immediately (Figs. 13–16). the future market, and experts see great growth potential here for two-piece ceramic implant systems. Case 5 (2016) Bone level indication extensions (Z5s implants in re- gions #46 and 47) were used in this case, in which, even with a two-piece tissue level implant, there were con- cerns about stable fixing owing to the lack of good pri- mary stability. Furthermore, the desire of many oral sur- geons to be able to collaborate clearly with the referring dentist has to be considered (Figs. 17–20). Scientific background Will two-piece implants become established? The similarity in placement procedure of the two-piece ceramic implant to that of the two-piece titanium implant is its main benefit. The risk of undesirable stresses in the healing phase do not arise. There are more possi- ble variations in the positioning in the current operation area during surgical intervention. There is more flexibil- ity in prosthetic treatment through the choice of abut- ments, with various angles and diameters available. It is thus to be expected that two-piece ceramic implants will be used more often. Are two-piece implants safe? We currently have at our disposal many more stud- ies, user observations and experiences for single-piece ceramic implants than for two-piece implants. There is a great need for further studies on two-piece ceramic implants, most of all controlled long-term studies. A race can be expected between the ever-more expensive stud- ies and the fast development of the dental industry in There are currently no clear comparisons with a sound basis in studies between 1. one-piece and two-piece ceramic implants, 2. two-piece ceramic and titanium implants, 3. two-piece ceramic implants and two-piece implants consisting of a cemented titanium base with a zirco- nium dioxide superstructure. 16 implants 1 2017