Sore gum at base of tooth
A sore gum at a tooth base can come from plaque, trapped food, trauma, decay, or infection and needs examination if it persists.
The short answer
A sore gum at the base of a tooth is commonly caused by plaque-related inflammation, trapped food, brushing trauma, decay, or an infection near the root.
What is the direct answer?
What does this question mean?
The area at the tooth base is the gingival margin, where gum tissue meets enamel or a root surface. Redness, swelling, bleeding, tenderness, recession, or a small pimple there can reflect a local gum problem or disease inside the tooth that drains through the gum.
What can you do next?
Brush gently with a soft toothbrush, clean between the teeth, and rinse with warm salt water if it is comfortable. Do not pick the gum or place aspirin, alcohol, or concentrated oils on it; arrange an examination if the soreness does not settle or chewing is painful.
When should you seek dental care?
Seek prompt care for facial swelling, fever, pus, a bad taste, difficulty opening the mouth, swallowing, or breathing. A dentist may inspect the gum, probe around the tooth, test cold or biting response, and take a dental radiograph when decay or root infection is possible.
What should you ask the dentist?
Ask whether the tenderness is from the gum, the tooth, or both, and whether an X-ray is needed. Ask which treatment addresses the cause, how to clean the area during healing, and which symptoms would require urgent review.
Frequently asked questions
Why does the gum hurt when I brush?
Inflamed tissue can be tender and bleed with contact, while forceful brushing can add mechanical irritation.
Can a sore gum heal without treatment?
Minor irritation may improve after the irritant is removed, but persistent pain or swelling needs a dental examination to identify the cause.