The CATFISH study (Cumbria Assessment of Teeth a Fluoride Intervention Study for Health) sees Researchers from Salford Royal NHS Foundation Trust, The University of Manchester’s, Cambridge University, Kings College London, the specialist dental services at North Cumbria Integrated Care NHS Foundation Trust and Cumbria and NENC Local Research Network team. Salford Royal and the University of Manchester are among the partners in MAHSC, the Manchester Academic Health Science Centre.