My design is based on if people on on the mission have problems with their mouth on the mission. Also people can have fun in space because they will be up there for a long time. Playing sports and other things like that. Guarding peoples teeth with a Rubber Mouth guard. The mouth guard protects the teeth in an activity or can be used as a holder for lost teeth in the mission. (if it occurs) Blood from the teeth usually comes out really fast so gripping down on the mouth guard can be used while other medical supplies can be found and used to stop the bleeding of the lost or damaged tooth.