Digital workflow in full‐arch implant rehabilitation with segmented minimally veneered monolithic zirconia fixed dental prostheses: 2‐year clinical follow‐up

Abstract

This article presents an integrated digital workflow that was implemented for the implant-prosthodontic rehabilitation of three edentulous patients with monolithic zirconia prostheses. Monolithic zirconia has been successfully incorporated in implant prosthodontics in an effort to reduce the technical complications associated with bilayered ceramics. This workflow simplifies design and fabrication of the zirconia prostheses. However, caution should be taken during CAD planning of the prosthesis to make sure the zirconia cylinder is sufficiently thick at the interface with the titanium insert. Additionally, when cutback is planned for facial porcelain veneering, the functional occluding cusps and incisal edges should be fabricated in monolithic zirconia to avoid chipping.

Accuracy of printed casts generated from digital implant impressions versus stone casts from conventional implant impressions: A comparative in vitro study

“…During a complete digital workflow, the cast is not necessary as the prosthesis and the titanium insert or the abutment can be cemented without a cast or even intraorally (Chun et al, ). For the full arch fixed implant rehabilitation, a complete digital workflow is currently not feasible and instead a combination of digital and conventional workflow is the current status (Papaspyridakos et al, , ).…”

“…Understanding the impact of these factors allows the fabrication of an accurate master cast, which reduces the possibility of framework misfit. The introduction of digital impressions using intra‐oral optical scanner (IOS) into the fields of fixed and implant prosthodontics aims to aid in achieving this goal while it carries advantages, namely the elimination of tray selection, reduced risks of distortion during impression making, pouring, disinfecting, and shipping to the laboratory, potentially increased patient comfort and acceptance and finally electronic storage as digital information, leading to better efficiency and reduced costs (Papaspyridakos et al, ,). In a digital workflow for the fabrication of implant prostheses, deviations in accuracy (trueness and precision) have been reported when making a digital impression in similar fashion to the conventional approach.…”

Implant survival rates and biologic complications with implant‐supported fixed complete dental prostheses: A retrospective study with up to 12‐year follow‐up

“…The longitudinal effectiveness of dental implants has been scientifically validated for both partially and completely edentulous patients (Balshi, Wolfinger, Stein, & Balshi, ; Buser et al, ; Fischer & Stenberg, ; Gallucci et al, ; Jemt, ; Jemt, Nilsson, Olsson, & Stenport, ; Malo, Araújo Nobre, Borges, & Almeida, ; Malo, Araújo Nobre, Guedes, & Almeida, ; Papaspyridakos, Chen, Chuang, & Weber, ; Papaspyridakos, et al, ; Papaspyridakos, Mokti, et al, ; Wittneben et al, ). While many longitudinal studies have reported data on implant survival, data on implant complications are still sparse (Heitz‐Mayfield, Needleman, Salvi, & Pjetursson, ; Papaspyridakos, Chen, Chuang, Weber, & Gallucci, ; Papaspyridakos, Chen, Singh, Weber, & Gallucci, ; Pjetursson, Asgeirsson, Zwahlen, & Sailer, ; Zarb & Schmitt, ).…”

Model‐less digital workflow for the replication of an existing complete fixed implant‐supported prosthesis using an intraoral scanner

“…The rationale applied to the patient was that the replication of general prosthetic contours, vertical dimension, tooth disposition and size, gingiva volume, and color references could shorten the clinical steps and increase final predictiveness (Figure ). As such, the volume of the previous CAFIP superimposed with hard and soft tissue contours, needed to be transported, by a dual‐scan technique into the CAD software to enable the new design …”

“…Zirconium oxide (ZO) is one of the materials suited for implant‐supported CAD/CAM rehabilitations, prepared via subtractive milling, as it offers good esthetics, biocompatibility, shade stability, low accumulation of plaque, good resistance to abrasion, and low thermal conductivity . Recent advances in the ZO technology were achieved by the production of variants with improved translucency that allows the construction of full‐contour restorations, combining esthetic results along with high mechanical properties …”