Digital Workflow in Reconstructive Dentistry

Fig 2.23Digital images of the scanned maxilla and mandible. The optical impressions were processed by the company to portray the preparation margins. Polyurethane casts were fabricated by using digital data sets from the scanning procedure.

Fig 2.24The SimedaCad 2.0 software was used to design the restorations. A prototype of the restorations was fabricated and tried intraorally.

Fig 2.25By using a digital cutback, the framework design was created. The intraoral try-in of the zirconia frameworks showed proper fit and retention. The selection of the tooth shade was performed using a spectrophotometer.

Fig 2.26Before finalization of the restorations, a biscuit try-in was performed to check esthetics, phonetics, and occlusion.

Before cementation of the final restorations, a radiographic examination and re-evaluation of the intraoral status were performed to check the vitality and the periodontal status of the abutment teeth. Furthermore, the inner zirconia surface of the final crowns was airborne-particle abraded with alumina oxide under a pressure of 0.5 bars and chemically treated with a monophosphate monomer (Clearfil Ceramic Primer, Kuraray Dental, Tokyo, Japan). Afterwards the crowns and FPDs were cemented with a dual curing adhesive cement (Panavia 21, Kuraray Dental; Figs 2.27– 2.29).

Fig 2.27Frontal view of the final crowns after cementation.

Fig 2.28Lateral and occlusal views of the cemented restorations.

Fig 2.29Frontal lateral views of the patient’s smile showing a successful esthetic outcome of the prosthetic rehabilitation.

One week after the insertion, the final re-evaluation of the occlusal relationship was conducted. The patient was enrolled in a 6-month recall regimen.

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