Really bad toothache
Severe toothache can arise from decay, pulp inflammation, a crack, gum infection, or an abscess and needs prompt dental assessment.
The short answer
A severe toothache may mean that decay, a crack, exposed dentine, inflamed pulp, or infection is affecting the tooth, and pain relief alone does not remove the cause.
What is the role of the pulp inside a tooth?
The pulp is the living tissue containing nerves and blood vessels inside the tooth. Bacteria entering through decay or a crack can inflame the pulp, while infection may spread through the root tip into surrounding bone and gum.
What can you do now for severe toothache?
Rinse gently, remove trapped food, use a cold compress on the cheek, and take only pain medicine that is suitable for you according to its label or a pharmacist. Do not heat the area, place chemicals on the tooth, or delay care because pain temporarily stops.
When does severe toothache need prompt care?
Contact a dentist promptly for intense, persistent, or night pain, pain on biting, swelling, fever, or a bad taste. Facial swelling, trouble swallowing, or breathing difficulty requires emergency medical care.
Can the affected tooth still be restored?
Ask whether the pulp is inflamed or infected and whether the tooth can be restored. Ask about examination tests, radiographs, drainage, a filling, root canal treatment, or extraction.
Frequently asked questions
Why can a tooth hurt when I bite?
Biting pain can occur when the ligament around a tooth is inflamed, or when a crack or root-area infection changes how the tooth bears pressure.
Can an abscess disappear by itself?
The pain may change if pressure drains, but the source of infection can remain and needs dental treatment.
Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.