Funda Bayindir

Purpose Debonding of zirconia restorations remains a significant clinical challenge due to its glass-free microstructure, which limits micromechanical and chemical adhesion. Zircos-E, a nitric–hydrofluoric acid mixture, has been proposed as a simplified room-temperature alternative to airborne-particle abrasion (APA). This meta-analysis aimed to compare the shear bond strength (SBS) of zirconia surfaces treated with Zircos-E etching versus APA.

1. Introduction Over the last three decades, researchers from various expertise such as physics, engineering, chemistry, biology and medical sciences, have been working in collaboration in order to develop new materials for medical implementation. In this context, several materials have been introduced over the last centuries; they developed various brands using metals, ceramics and polymers where they can be used in different parts of the human body.

1. Introduction Numerous factors such as the amount of remaining tooth tissue, the treatment procedure applied, the type of material applied, and the position of the current tooth on the dental arch impact the prognosis of endodontically treated teeth [1] . When coronal tissue loss is 50% or more, post-core treatment can be applied to ensure the continuity of remaining tooth tissues [2] .