Influence of Alternative and Conventional Surface Treatments on the Bonding Mechanism between PEEK and Veneering Resin for Dental Application

This study evaluated the influence of conventional and alternative surface treatments on wettability bond strength between polyether ether ketone (PEEK) veneering resin. PEEK samples were randomly divided into five groups: sandblasting, tribochemical silica coating, etching with 98% sulfuric acid for 5 s, 30 coating plus heated silane. One them was subjected to analysis by energy-dispersive X-ray spectroscopy (EDS) ten analyzed goniometry (n = 5) scanning electron microscopy 5). Shear (SBS) tested, failure types assessed. Data using one-way ANOVA, followed Tukey Duncan tests (all, α 5%). Treatment sandblasting had lowest SBS means (4.2 MPa 4.4 respectively), while s showed highest mean value (12.6 MPa), + All failures classified as adhesive. The contact angle found polished (control) etched group (83.9°). Etching increased resin PEEK.