Abstract— Mouthguards are important for those involved in contact sports and their use in such sports is recommended by authorities as they provide considerable protection for the orofacial structures. The use of mouthguards in contact sports in part reflects the success of community awareness programmes designed to encourage such practice. A comprehensive study of 116 Rugby Union footballers was undertaken in 1984 to study the prevalence of orofacial injuries and the use of mouthguards in that sport and the results are presented in this paper. The grades ranged from club level through to international level of competition. Overall the usage of mouthguards was high and ranged from 79–96 per cent in the various teams. This study is the most complete ever recorded in Rugby Union.