Effect of laser etching on shear bond strength between polyether ether ketone (PEEK) and maxillofacial silicone after accelerated ageing – an in vitro study

Surface pretreatment significantly influenced the adhesion of maxillofacial silicone to PEEK. Laser treatment and air abrasion provided superior and statistically comparable bond strengths, whereas sulfuric acid etching was less effective. Accelerated ageing reduced bond strength over time, highlighting the effect of ageing conditions on the durability of adhesion.