Dental question about observed-topic:dental-sinus-or-root-infection
A gum pimple or draining sinus near a tooth can indicate a root infection and needs examination, imaging, and treatment of the source.
The short answer
A gum pimple or draining sinus near a tooth can indicate a root infection and needs examination, imaging, and treatment of the source. The drainage may reduce pressure without eliminating infection inside the tooth.
What is the direct answer?
What does this question mean?
Bacteria can enter the pulp through decay, a crack, or injury and spread through the root canal system. The body may form a small drainage pathway through bone and gum, appearing as a recurrent bump or bad taste.
What can you do next?
A dentist tests the tooth, examines neighbouring teeth, and takes focused radiographs or other imaging when needed. Treatment may involve root canal therapy to clean and seal the canals, or extraction when the tooth cannot be predictably restored.
When should you seek dental care?
Arrange prompt care for a gum swelling, sinus tract, persistent toothache, pain on biting, or a bad taste. Facial swelling, fever, eye swelling, or difficulty swallowing or breathing requires urgent assessment.
What should you ask the dentist?
Ask which tooth is the source, whether it can be restored, and what imaging shows about the roots and surrounding bone. Ask how root canal treatment compares with removal and replacement in your situation.
Frequently asked questions
Can a dental sinus disappear on its own?
Drainage can stop temporarily, but the tooth may still contain infection and needs assessment.
Are antibiotics enough?
They may be used in selected spreading or systemic infections, but they do not remove infected tissue inside a tooth.