Hi, my sister is a professional baseball player. Last week she met with an injury and she is not able to participate in an important competition that is happening on next week. All of the team members are forcing me to play the match instead of her. I have my friend's marriage coming up on the following week. I cannot take any chance because I have heard that baseball can often lead to injuries, and cannot look bad on that day. I have read a blog ( http://www.shorttermbraces.com/blog/general-category/mouth-guards-and-splints/ ) that wearing mouth guards can reduce the problem to some extent. What are your opinions regarding the usage of mouth guards? Does it help? Please give some genuine replies and suggestions. Thanks in advance.