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ePaper created 2018-02-16, 11:17:41 | version 1.38.0
| industry report CAD/CAM-assisted treatment Fig. 8 Fig. 9 Fig. 10 Fig. 11 Fig. 12 In the first stage, a scan of the complete jaw was performed using the CEREC Ortho software and the CEREC Omnicam. This formed the basis for creating the therapeutic aligners for intrusion in the maxilla and mandibula in order to correct the bite (Fig. 3). We were fascinated by the accuracy of the fit. Adaptation is especially good in the lingual area; the interface between the natural tooth and ceramic is barely visible. This is ultimately what we had hoped to achieve. The patient wore Invisalign aligners for nine months. This created ideal gingival harmony and sufficient space to place no-prep veneers on the anterior teeth (Fig. 4). It proved very simple to produce the veneers with the new CEREC software 4.5. The complete scan had a very positive impact on the quality of the initial pro- posal, enabling the software to use several teeth as a reference for the initial proposal. In line with expec- tations, a first-class proposal was produced for the desired restoration as previously configured. We pro- vided the patient with a total of six veneers (13 to 23) in the maxilla in a single visit. The shape of the upper veneers were designed to maximise upper lip support. We also orthodontically modified the position of the teeth in the mandible in order to prepare teeth 32 to 42 for veneers. The no-prep veneers were pro- duced chairside from e.max blocks using extra-fine milling tools and were 0.2 to 1 mm thick (we use both CEREC zirconia and CERASMART in our practice). The margins were designed optimally thanks to the new software-controlled milling algorithms. This meant no corrections at all were required; adaptation to the natural teeth was immediate and created a highly attractive result. For enhanced quality of life Our approach of starting out with orthodontic correction enabled us to greatly influence the overall visual impression of the patient’s face. Following treatment, the patient appeared younger; the teeth can now be seen when the patient talks, and the upper lip is well supported by the teeth. For us, this meant an ideal result after nine months without compromises; for the patient it meant a greatly im- proved quality of life._ Editorial note: Registered brands, trade names, and logos are used. Even if they are not marked as such in the respec- tive places, the corresponding legal provisions apply. contact Dr Mark Ahonen graduated from University of Helsinki in 2011 and is currently doing clinical research on digital dentistry with a strong focus on guided implantology. He teaches and lectures on current and future applications of CAD/CAM technology and CBCT integration both nationally and internationally. He has a website and blog about different topics, especially about CEREC at www.cerecfinland.fi Fig. 8: Veneers produced chairside prior to fitting. Fig. 9: Image after fitting the veneers. Fig. 10: Perfect adaptation of the veneers with optimal margin design. Fig. 11: Final appearance on lip rest position showing good amount of tooth structure. Fig. 12: Good support for the upper lip. 34 CAD/CAM 4 2017