In my experience, the cementation of glass-ceramic veneers is one of the most technique-sensitive procedures in restorative dentistry, owing to the minimal margin for error and the high aesthetic standards required to achieve a result that satisfies both clinician and patient. Current protocols emphasise conservative preparation, ideally remaining entirely within the enamel or, at the very least, minimising extension into the dentine. Preparation design and extent should not be planned in isolation, but coordinated through close collaboration between clinician and technician, ensuring that the final result is both biologically sound and aesthetically predictable.