The Prosthetic Workflow in the Digital Era

Abstract

The purpose of this retrospective study was to clinically evaluate the benefits of adopting a full digital workflow for the implementation of fixed prosthetic restorations on natural teeth. To evaluate the effectiveness of these protocols, treatment plans were drawn up for 15 patients requiring rehabilitation of one or more natural teeth. All the dental impressions were taken using a Planmeca PlanScan® (Planmeca OY, Helsinki, Finland) intraoral scanner, which provided digital casts on which the restorations were digitally designed using Exocad® (Exocad GmbH, Germany, 2010) software and fabricated by CAM processing on 5-axis milling machines. A total of 28 single crowns were made from monolithic zirconia, 12 vestibular veneers from lithium disilicate, and 4 three-quarter vestibular veneers with palatal extension. While the restorations were applied, the authors could clinically appreciate the excellent match between the digitally produced prosthetic design and the cemented prostheses, which never required any occlusal or proximal adjustment. Out of all the restorations applied, only one exhibited premature failure and was replaced with no other complications or need for further scanning. From the clinical experience gained using a full digital workflow, the authors can confirm that these work processes enable the fabrication of clinically reliable restorations, with all the benefits that digital methods bring to the dentist, the dental laboratory, and the patient.

Color Aspect of Monolithic Zirconia Restorations: A Review of the Literature

“…Laboratory procedures of fabrication of monolithic zirconia restorations, from beginning to end, include: zirconia ceramic blank/block selection, restoration design, milling the zirconia blank/block, coloring, sintering, polishing and finishing, staining, and glazing the restoration . Zirconia ceramic selection is accomplished according to mechanical, esthetic, and clinical requirements.…”

Accuracy of Digital Models Obtained by Direct and Indirect Data Capturing of Multi-Implant Impressions

“…The results of our study were in accordance with many previous studies. (1,5,(11)(12)(13)(14)(15)(16) A previous study concluded that digital impressions create accurate physical models for all-on-four implants rehabilitation, (5) and that x-ray examination revealed a bar -implant connection accuracy. Another study concluded that clinical precision of digital quadrant impression models (I Tero Cadent, Lava COS, Lava true definition, 3 Shape Trios, Trios color, Cerec blue cam and Cerec omnicam) is sufficient to cover broad variety of restorative indications, giving precision within clinically acceptable range.…”

A Virtual Noninvasive Way of Constructing a Nasoalveolar Molding Plate for Cleft Babies, Using Intraoral Scanners, CAD, and Prosthetic Milling

“…The scanner's camera has a resolution of 600 Â 800 pixels, accuracy of 5.26 + 0.338 mm for single crown and precision (repeatability) of 3.18 + 0.487. It captured the cleft anatomy ( Figure 1) with precision and the files were converted to Standard Tessellation Language (Ciocca et al, 2009;Tordiglione et al, 2016) for the purpose of 3-dimensional (3-D) printing. The files were then interpreted using EXOCAD software (version 2016), which is a CAD software.…”

“…This is then attached with a nasal stent (Grayson and Court, 2001; Grayson and Maull 2004) and the appliance is delivered. We have devised a method to fabricate most parts of the NAM plate using digital technology such as intraoral scanners, computer-assisted designing (CAD) technology (Ciocca et al, 2009; Tordiglione et al, 2016), and sophisticated 5-axis milling machine and finally completing the assembly by attaching a nasal stent, which is fabricated separately in the laboratory.…”