How can I prevent dental caries?

Brush twice daily with fluoride toothpaste, clean between teeth daily with floss, reduce the frequency of sugary snacks and drinks, attend regular dental check-ups, and ask your dentist about fluoride varnish or sealants if appropriate.

Does every cavity cause pain?

No. Early caries may cause no pain. Pain and sensitivity often develop as the lesion reaches dentin or the tooth’s nerve. Regular dental exams help detect issues before pain starts.

When is a toothache an emergency?

If toothache is accompanied by facial or neck swelling, fever, trouble breathing or swallowing, seek urgent medical or dental care promptly.

Can fluoride reverse early decay?

Topical fluoride and improved oral hygiene can help remineralize some early enamel lesions. Discuss monitoring and preventive options with your dentist to determine the best approach.

Health guide

What to know about dental caries

Dental caries develops when acids produced by bacteria in dental plaque break down tooth enamel and, over time, reach deeper layers. It is common in both children and adults. Below is practical information on how caries forms, early warning signs, prevention strategies and when to seek dental care.

How caries develops

Bacteria that live in dental plaque feed on sugars and starches from foods and produce acids. These acids demineralize enamel; early stages may show as white chalky spots. If demineralization continues, the dentin and eventually the pulp can be involved, which may lead to sensitivity, pain and the need for restorative dental work.

Risk factors and prevention

Factors that increase risk include poor oral hygiene, frequent consumption of sugary or sticky foods, low fluoride exposure, dry mouth and certain medical conditions. Preventive measures include twice-daily brushing with fluoride toothpaste, daily flossing, limiting sugary snacks and drinks, regular dental check-ups, and professional preventive options such as topical fluoride or fissure sealants for children—discuss with your dentist.

Signs and when to see a dentist

Early signs include white or dark spots on teeth and increased sensitivity to hot, cold or sweet stimuli. Later signs are persistent toothache, swelling, bad taste or odor, and visible breaks in the tooth. Seek prompt dental evaluation if you have severe pain, facial or neck swelling, fever, or difficulty breathing or swallowing—these may require urgent care.

Diagnosis and care pathways

A dentist diagnoses caries through clinical examination and, if needed, radiographs. Early lesions may be managed with remineralization strategies and closer monitoring; progressive lesions typically require restorative treatment such as fillings or further specialist care. For complex cases, referrals are commonly made to Pediatric Dentistry, Endodontics or Oral and Maxillofacial Surgery.

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