Tooth decay, also known as dental caries or cavities, is one of the most common oral health issues affecting people of all ages. It occurs when the enamel, the tooth’s protective outer layer, is damaged by acids produced by bacteria in the mouth. Understanding the symptoms of tooth decay and the available treatment options can help prevent further damage and maintain a healthy smile. Learn about tooth decay, its symptoms, and the treatments available.
What is Tooth Decay?
Tooth decay is a progressive dental disease that occurs when bacteria in the mouth convert sugars and carbohydrates from food into acids. These acids erode the enamel, creating small openings or cavities in the teeth. If left untreated, the decay can progress deeper into the tooth, affecting the dentin and eventually reaching the tooth’s pulp, leading to severe pain and infection.
Symptoms of Tooth Decay
- Tooth Sensitivity: One of the initial signs of tooth decay is tooth sensitivity to hot, cold, or sweet stimuli. When exposed to these triggers, the affected tooth may experience sharp, temporary pain.
- Toothache: As the decay progresses and reaches the deeper layers of the tooth, a persistent toothache may develop. The pain can range from mild to severe and may worsen when biting or chewing.
- Visible Holes or Discolouration: As the cavities develop, you may notice visible holes or pits on the surface of the affected teeth. Discolouration, such as white, brown, or black spots, may also be present.
- Bad Breath: The breakdown of food particles by bacteria can lead to persistent bad breath, even after brushing and using mouthwash.
- Swelling and Pus: In advanced cases, a tooth abscess may develop, causing gums swelling and pus around the affected tooth. This can be accompanied by fever and a foul taste in the mouth.
Tooth Decay Treatment Options
- Dental Fillings: When tooth decay is detected early, and the cavity is small, the most common treatment is a dental filling. Your dentist removes the decayed portion of the tooth and fills the cavity with a material such as composite resin, porcelain, or amalgam.
- Dental Crowns: If the tooth decay has progressed to a more significant extent, compromising the tooth’s structural integrity, a dental crown may be required. The decayed portion of the tooth is removed, and a custom-made crown is placed over the remaining tooth to restore its shape, strength, and functionality.
- Root Canal Therapy: A root canal procedure may be necessary when the decay reaches the tooth’s pulp, causing severe pain and infection. The dentist removes the infected pulp, cleans the root canals, and seals them to prevent further infection. A dental crown is typically placed on the tooth to protect and strengthen it.
- Tooth Extraction: In cases where tooth decay is extensive, causing significant damage and cannot be saved, tooth extraction may be the only option. After the extraction, the dentist may discuss options for replacing the missing tooth, such as dental implants, dental bridges, or dentures.
Prevention and Conclusion
Preventing tooth decay is possible with good oral hygiene practices and regular dental check-ups. Here are some preventive measures:
- Brush your teeth at least twice a day with fluoride toothpaste.
- Floss daily to remove plaque and food particles from between the teeth.
- Limit the consumption of sugary and acidic foods and beverages.
- Visit your dentist regularly for professional cleanings and check-ups.
By recognizing the symptoms of tooth decay and seeking early treatment, you can prevent further damage and maintain a healthy smile. Remember, oral health is an essential part of overall well-being.

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