My Two Year Old Daughter Fell Down The Stairs And

My two year old daughter fell down the stairs and landed on her chin. She fell from the second step as she was going up. She has been experiencing jaw pain when chewing or when light pressure is made against her jaw. She also has a small scratch on her chin. She's playing around normally and had a nap earlier as usual, but I'm concerned about the pain she is experiencing. Should I take her to have an x-ray done?