“What do players criticize about mouthguards certified by World Rugby?
It is certain that they are less comfortable: they are thicker, less flexible than the model I used before, not connected, and which had been entirely custom-designed. Now there is a chip inside, on the side, and it causes discomfort in the mouth, even though a dentist came to the club to see what could be improved. But by putting it into practice and in matches, you get used to it and, today, it's much less difficult than at the start.