I have a dental abscess in a molar and have been prescribed antibiotics which thank goodness seem to be finally helping with the pain. I have noticed a really weird thing though. My top and bottom teeth at the side which is affected feel like they havent been brushed and are covered in plaque (they have been brushed). They feel fine immediately after brushing but soon feel nasty again. the other side of my mouth feels absolutely fine and clean. Is this normal when you have an abscess?