A toothache at the gum line usually feels different from a general toothache. It’s often a sharp, localized sting or persistent soreness right where the tooth meets the gum. You may get sudden pain with cold or when brushing, bleeding, or a tender spot that lingers. Don’t ignore it — a toothache at gum line Naples, FL can mean gum disease, exposed root surfaces, decay near the gum, or even an infection that needs quick care. Common Causes Of A Toothache At Gum Line Gum disease (gingivitis vs. periodontitis)   Gingivitis causes red, swollen gums that bleed easily. If it progresses to periodontitis, pockets form between the tooth and gum where bacteria collect. That pocketing and infection can create sharp, localized pain at the gum line, plus bleeding and sensitivity. Gum recession and exposed root surfaces   When gums pull back, root surfaces (dentin) are exposed. Dentin has tiny tubules that transmit sensations to the nerve, so exposed roots can cause shar ...