Achieving strong and reliable bond to all-ceramic restorations is a pre-requisite for long term clinical success. With the great diversity of the available materials, there is a need for establishing general concepts for bonding all-ceramic restorations. The aim of this study was to evaluate bond strength to two ceramic substrates using different resin cements in combination with different surface treatments. Zirconia and glass ceramic discs received either airborne particle abraded, etched with hydrofluoric acid and coated with silane coupling agent, or combination of particle abrasion and silane coupling agent. Specimens were bonded to composite resin discs and sectioned into micro-bars to evaluate ceramic resin micro-tensile bond strength

Purpose: Laboratory processing of implant-supported prostheses may alter the surface of the abutment in contact with the corresponding surface and thus the interface fit. This study assessed changes in the rotational freedom (R) at the interface of 1 implant ceramic abutments before and after preparation and glass infiltration processes

Objectives. The zirconia–resin bond strength was enhanced using novel engineered zirconia primers in combination with selective infiltration etching as a surface pre-treatment. The aim of this study was to evaluate the effect of artificial aging on the chemical stability of the established bond and to understand the activation mechanism of the used primers.

Objective: The aim of this study was to investigate the influence of a fiber post on the fracture mechanics of zirconia crowns inserted over endodontically treated teeth with different extent of coronal damage.

Objective: Bond strength limitations of zirconia frameworks have stood as a barrier against their widespread use.[Au: The first sentence was modified to keep the abstract within QI’s word limit. ok as edited?] Selective infiltration etching is a new surface treatment that enhances bonding to zirconia-based materials. Beside bond strength, the performance of adhesive zirconia restorations could be affected by other variables. The aim of this work was to study the influence of partial-retainer design on the failure load of selective infiltration etched zirconia restorations.

Objectives. Establishing a reliable bond to zirconia-based materials has proven to be difficult which is the major limitation against fabricating adhesive zirconia restorations. This bond could be improved using novel selective infiltration etching conditioning in combination with engineered zirconia primers.

Abstract Endodontically treated teeth are traditionally restored with a crown to prevent fracture. The aim of this study was to compare the fracture resistance and failure modes of endodontically treated maxillary premolars treated with or without a fiber post and restored with different types of crowns. Eighty human maxillary premolars were selected. After root canal treatment, the teeth were embedded in resin blocks and divided into four groups. Samples received MOD cavity preparations and were divided into two subgroups: with and without fiber posts and restored using porcelain fused to metal, lithium disilicate, fiber-reinforced composite, or zirconia crowns.