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ePaper created 2018-02-16, 11:17:41 | version 1.38.0
| case report maxilla restoration A convincing duo: Zirconium dioxide and fluorapatite glass-ceramic— the symbiosis of different procedures and materials for simplified and safe outcomes Authors: Dr Torsten Seidenstricker & Dominique Vinci, Switzerland functional problems, there was severe periodontal damage. The treatment began with an in-depth diag- nosis and an informative consultation. First, teeth #25, 26, 14, 16, 11 and 12 were extracted. The perio- dontitis was then targeted. Treatment of the perio- dontitis was successfully completed approximately 13 months later. Implants needed to be placed in re- gions #11, 12, 14, 16, 25 and 26. The clinical situation meant that all teeth in the maxilla and some teeth in the mandible had to be restored. Planning and temporisation Before starting such an extensive prosthetic recon- struction, photographic documentation of the oral situation and the patient’s face is essential. Primarily, the photographs help in assessing the axes and planes in terms of optimum aesthetics and function. We work with a 3-D design program (Digital Smile System, DSS). This tool enables us to simulate the possible re- sults virtually. Another advantage of this software is that the photographs can be used in the CAD software while the restoration is being produced. The teeth to be extracted were removed from the situation model, and the remaining teeth were prepared using the in- formation provided by the dentist. Fig. 1 Fig. 1: The situation after the implants in the maxilla had healed. All-ceramic restorations were planned. Fig. 2: Diagnosis according to photographs in the design software. This patient case demonstrates how a monolithic zirconium dioxide framework can ensure stability and function in a complex prosthetic restoration. The ceramic veneering of the vestibular surfaces gives the restoration natural light optical properties, con- tributing to the very pleasing final results. Initial situation A 60-year-old patient came to the dental practice as an emergency case. In addition to aesthetic and Fig. 2 26 CAD/CAM 4 2017