Pain or pressure at the back of the mouth
Swollen, red, or tender gums behind the molars
Jaw soreness or stiffness
Difficulty opening the mouth fully
Pain when chewing on the back teeth
A new tooth or bump visible behind the last molar
Gum flap partially covering a tooth
Bad breath or a bad taste in the mouth
Headache or earache on the affected side
Crowding or shifting of nearby teeth
Food getting trapped near the back of the mouth
Mild bleeding or irritation around the area