Wear behavior of dental glass-ceramics: a scoping review on the damage of opposing tooth enamel surfaces

The main aim of this study was to perform a scoping review on the wear behaviour of recent dental glass-ceramics and its influence on the damage of opposing tooth enamel surfaces. Relevant in vivo and in vitro studies reported significant damage on enamel surfaces after friction against current glass-ceramics and therefore different parameters have been studied such as the glass-ceramic type, wear set up, environment, and surface treatment. The opposing enamel loss in volume, weight, or vertical measurement shown by previous studies is significantly higher when compared to enamel-by-enamel wear values. In fact, high values of hardness and elastic modulus of glass-ceramics combined with rough surfaces can result in detrimental effects on the tooth enamel surfaces. Restorative dental materials must withstand masticatory loads in combination with aesthetic benefits and high biocompatibility. Nevertheless, elastic modulus, hardness, and roughness of glass-ceramics should be adjusted to decrease the damage on tooth enamel surfaces. •The present literature review focused on the wear of glass-ceramics and opposing tooth enamel.•In vivo and in vitro studies revealed significant damage on enamel surfaces against glass-ceramics.•Different parameters are studied such as the glass-ceramic type, wear set up, environment, and surface treatment.•Glass-ceramic surface treatment varies according to the manufacturers’ instructions, clinician, and technician skills.•A combined effect of hardness, elastic modulus, and roughness induce the wear of opposing enamel.