Can Tooth Decay Cause Swollen Gums?

Can Tooth Decay Cause Swollen Gums? Can tooth decay cause swollen gums? Untreated dental decay can lead to a dental abscess, which is localized gum swelling. Can cavities cause gum swelling? Undetected tooth abscess It starts when bacteria successfully infiltrates the tooth pulp which happens with undetected tooth decay or cracked tooth. If left untreated,