Fig. 2From: 3D-printed individualized tooth-borne tissue retraction devices compared to conventional dental splints for head and neck cancer radiotherapy: a randomized controlled trialSchedule of enrolment, interventions, and assessments for the prospective randomized controlled GUARD trial (SPIRIT figure). Abbreviations: Radiotherapy (RT), tissue retraction devices (TRDs), quality of life (QoL), computed tomography (CT), magnetic resonance imaging (MRI)Back to article page