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Tooth decay (dental review)

General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.

What it is

Tooth decay is damage to a tooth 's surface, or enamel. It happens when bacteria in your mouth make acids that attack the enamel. Tooth decay can lead to cavities ( dental caries ), which are holes in your teeth.

Sources: SI, NLM MedlinePlus · Reference · MedlinePlus (US NLM) · Mayo Clinic

Symptoms

Findings that point to it: toothache, facial swelling.

Sources: SI, NLM MedlinePlus · Reference · MedlinePlus (US NLM) · Mayo Clinic

When to seek care

See a qualified clinician to confirm or rule this out, sooner if symptoms worsen.

Sources: SI, NLM MedlinePlus · Reference · MedlinePlus (US NLM) · Mayo Clinic

Diagnosis

Tests used to confirm: dental review.

Sources: SI, NLM MedlinePlus · Reference · MedlinePlus (US NLM) · Mayo Clinic

Care & treatment

Treatment is decided by a clinician after confirming the diagnosis. No dosing information is given here.

Sources: SI, NLM MedlinePlus · Reference · MedlinePlus (US NLM) · Mayo Clinic

Clinical guideline

WHO oral health, SDCEP guidance

Sources: SI, NLM MedlinePlus · Reference · MedlinePlus (US NLM) · Mayo Clinic

⚠️ Red-flag signs — seek urgent care

📞 Call 102

🏥 Hospitals near you

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Learn more / References

🩺 Quick assessment

Text: SI summary in its own words (CC BY 4.0) with NLM MedlinePlus public-domain summary; facts checked against WHO fact sheets (CC BY-NC-SA 3.0 IGO, paraphrased with attribution) and Mayo Clinic (linked reference only, no text used); ICD-10 and labels from Wikidata (CC0).

Emergency — call📞 102