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ePaper created 2018-01-31, 10:01:59 | version 1.38.0
| research Fig. 10a Fig. 10b Fig. 10: Final restoration at the day of surgery (a). Detail of soft-tissue attachment (b). files to be recognised by the intraoral scanner. The res- toration margins should be well-defined and prepared to the gingival or subgingival level.24, 25 The SKY elegance abutment anatomy allows to create a proper emergency profile that can be customised for each patient (Fig. 9). The next step is to obtain relative isolation, with any hint of moisture removed, to ensure a good intraoral impres- sion. The savings in terms of time and money are evident, as is the increase in patient comfort. Fabricating a CEREC crown The choice of restorative material to use on an implant requires familiarity with the way masticatory forces are transmitted via the crown and abutment to the bone- to-implant contact area. Biomimetics is the study of the materials that allow us to adapt prosthetic elements to their intended proper function, based on similarity to the receiving environment.26 Knowing how forces are trans- mitted is essential to avoid loads that can lead to bone loss or implant failure. The SKY elegance is a hybrid abutment with a tita- nium base and a ceramically reinforced PEEK body, so the transmission of forces from the crown to the implant proceeds gradually and progressively. This helps avoid crown fractures due to internal or external tension be- tween a ceramic crown and an all- ceramic abutment. these cements are more stable bio mechanically than ionomer cements or derivatives (Figs. 10a & b). Conclusion The establishment of a stable peri-implant seal to maintain gingival health around implant-supported res- torations must be a primary objective of any implant treat- ment. The single-stage approach allows the establish- ment of an initial peri-implant soft-tissue attachment that will be preserved as the abutment is not removed; hence, no violation of the biologic space will occur, allowing for greater tissue stability and yielding better aesthetics and an improved bone and soft-tissue stability. The integration of digital technology (CEREC) in the implant/restorative process shortens the treatment time and reduces the cost for the patient. The SKY elegance abutment helps treat patients with predictable results. Editorial note: A list of references is available from the publisher. This article was first published in EDI Journal No. 1/2016. Using a hybrid abutment approach, there is a choice of resin or ceramic base materials, from feldspar ceram- ics to ceramics with a silicate base. This still leaves the interface to consider; here, the crown is best connected to the abutment using a resin-based composite cement that facilitates the gradual transmission of forces; also, contact José Eduardo Maté Sánchez de Val Plaza de Luceros n. 15, bj. izq. 03004 Alicante, Spain jemate@ucam.edu 14 CAD/CAM 1 2018