First Online: 23 August 2019
Declaration of interests
: This project was jointly funded by a grant from GSK and UCL IMPACT (award number 157,871). The authors declare no conflict of interest. The Centre for Oral Health and Performance is part of the UK IOC Research Centre for Prevention of Injury and Protection of Athlete Health with the Institute of Sport Exercise and Health (ISEH) and the National Centre for Sport and Exercise Medicine (NCSEM).