trench mouth
This is trench mouth this happens when the soldiers did not brush their teeth for a long time the symptoms of trench mouth are bad breath fever foul taste in the mouth and a grayish film on the gums.The gums bleed and get really sore the way to get your teeth clean and not have trench mouth anymore is you have to get your gums cleaned really well this can also happen if you smoke or used tobacco. to get rid of the germs and bacteria you had to brush your teeth more.