The resin bond to high‐translucent zirconia—A systematic review

Abstract

Objectives Several systematic literature reviews have assessed the scientific evidence on resin bonding protocols to conventional 3 mol% ytrria‐stabilized zirconia (3Y‐TZP) ceramics. It has been widely discussed, however, that the differing composition and physical properties of new high‐translucent zirconia generations (4Y‐TZP and 5Y‐TZP) may require alternative bonding materials and procedures. This paper reviewed in vitro studies on the success and durability of bonding protocols to high‐translucent zirconia. Material and methods A systematic search of PubMed and Cochrane Library for in vitro studies on bonding to new zirconia generations published until November 2020 was conducted and complemented by a manual search. Studies selected for review fulfilled the applied inclusion and exclusion criteria. The quality of the included studies was assessed with the Cochrane risk‐of‐bias tool for randomized trials. Results Of 629 screened articles, 18 were included in this review. They investigated different surface pretreatment methods, primers, resin cements, aging procedures, and bond strength test protocols. The limited number of the identified studies and the heterogeneity of the extracted data did not allow to conduct a meta‐analysis. Conclusions The available evidence suggests that resin bonding protocols successfully applied to conventional zirconia are also the most successful for high‐translucent zirconia. Airborne particle abrasion and special phosphate monomer‐containing primers or composite resin cements provide long‐term durable resin bonds. Clinical significance Durable bonds can be established between high‐translucent zirconia and resin cements. The bonding materials and procedures applied do not compromise their physical properties.

Strains Induced by Zirconia and Metal Resin Bonded Attachments Versus Extracoronal Attachment With Full Veneer Retainer in Maxillary Distal Extension Removable Partial Dentures

“…The accuracy of 3D-printed models may be linked to the fact that they have little or no internal stresses owing to the layer-by-layer method of production of the cast. [23][24][25] Three strain gauges were placed on each side, two around each second premolar abutment on the buccal and distal sides, and the third one was on the edentulous ridge. This is in accordance with other studies that advocated a similar placement of strain gauges to monitor strains around abutments.…”

“…For the retention of removable dental prostheses, there are currently several types of zirconia attachments available: an extracoronal attachment, a ball attachment for overdentures as a component of a zirconia post, and a bar attachment. [19][20][21][22][23] Recent advancements in computer-aided design and manufacturing (CAD/CAM) have made it possible to use zirconia for many dental restorations. Zirconia milling with CAD/CAM-controlled milling equipment is used to fabricate zirconia restorations.…”

Full‐mouth rehabilitation in a completely digital workflow using partially adhesive monolithic zirconia restorations

“…To ensure an adequate esthetic zone, a multilayer zirconia was used that mimics the color gradient from the incisal area to the cervical region, in addition, to further increase the esthetic characteristic, external stains and glazing were also applied to the restorations to acquire a more natural appearance. For UTML zirconia restorations fabricated with a minimally invasive approach, proper bonding is even more necessary 16,25,26 . Previous studies have shown that the final color of translucent monolithic zirconia is affected by material thickness and cement shade 27,28 .…”

Cement-Based Materials in Dentistry

“…The same protocol can be applied on 3Y, 4Y and 5Y zirconia. Air abrasion followed by application of special primer with monomer 10-methacryloyloxydecyl dihydrogen phosphate (MDP) or composite resin cements containing MDP can lead to the long-term bond [73][74][75].…”