“…It could be speculated that a further optimization in irradiation techniques and a concomitant reduction in side effects, such as difficulty in swallowing, impaired sense of taste, xerostomia, and speech difficulties, could lead to a change in OHIP summary scores to the level of the normal population [33]. If this is the case, teeth and dentures may become increasingly important in terms of their impact on OHRQoL.…”