Tooth Decay Treatment in London

Tooth decay, also called cavities or dental caries, is one of the most common oral health problems. It occurs when bacteria in the mouth produce acids that erode the tooth enamel, eventually creating holes or permanent damage.

If left untreated, tooth decay can progress deeper into the tooth, causing severe pain, infection, and even tooth loss. At Thousand Smile, we help patients prevent, detect, and treat decay early to protect their natural teeth and maintain long-term oral health.

What Causes Tooth Decay?

Tooth decay develops when food particles (especially sugars and starches) remain on the teeth and interact with bacteria to form plaque. Over time, plaque hardens into tartar and produces acids that damage tooth enamel.

Factors that increase your risk include:

Poor brushing and flossing habits
High intake of sugary snacks and drinks
Frequent snacking between meals
Dry mouth (from medications or ageing)
Existing dental problems or worn fillings

Symptoms of Tooth Decay

You may not notice cavities in the early stages, but as decay worsens, symptoms can include:

Toothache or pain when biting
Sensitivity to hot, cold, or sweet foods and drinks
Visible holes or dark spots on the tooth
Bad breath or an unpleasant taste in the mouth
Swelling or infection in severe cases

Even if you’re not in pain, it’s important to attend regular check-ups, as our dentists can spot decay before it becomes serious.

020 3773 2280

Diagnosis at Thousand Smile

During your visit, our dentist may:

Examine your teeth visually for cavities or discolouration
Use a dental instrument to check for soft spots
Take X-rays to assess the extent of the decay and check for deeper damage
Ask about your symptoms, including sensitivity or pain

Treatment Options for Tooth Decay

The right treatment depends on how advanced the decay is. At Thousand Smile, we provide a full range of restorative options:

1. Fluoride Treatments

In the very early stages, professional fluoride applications can help strengthen enamel and reverse decay before cavities form.

2. Fillings

For small to moderate cavities, the decayed area is cleaned and restored with a filling. We offer tooth-coloured composite fillings for a natural look.

3. Crowns

If a tooth is weakened by extensive decay, a crown (custom-made cap) may be fitted to protect it. Crowns can be made from porcelain, resin, or porcelain fused to metal.

4. Root Canal Treatment

When decay reaches the inner pulp of the tooth, root canal therapy is required. The infected pulp is removed, the area is disinfected, and the tooth is sealed and restored.

5. Tooth Extraction

In cases where the tooth is too damaged to save, it may need to be removed. Replacement options such as implants, bridges, or dentures can restore function and appearance.

Managing Pain Before Your Appointment

If you’re waiting to see the dentist and experiencing discomfort, you can:

Brush gently with warm water and fluoride toothpaste
Avoid sugary, hot, or cold foods and drinks
Use desensitising toothpaste
Take over-the-counter pain relief (ibuprofen or paracetamol) as directed
Rinse with warm saltwater to reduce irritation

How to Prepare for Your Appointment

To help us provide the best care, bring along:

A list of your symptoms and when they began
Any medications, vitamins, or supplements you’re taking
Details of allergies or previous bad reactions to anaesthesia
Questions you’d like to ask (e.g., “Will I need a crown or filling?” or “How many visits will treatment take?”)

Prevention of Tooth Decay

You can greatly reduce your risk of cavities with good oral hygiene:

Brush at least twice daily with fluoride toothpaste
Floss or use interdental brushes every day
Limit sugary foods and snacks
Drink water (preferably fluoridated)
Visit our dentists and hygienists regularly for check-ups and professional cleaning

Book Tooth Decay Treatment in London

Tooth decay is preventable and highly treatable if caught early. Whether you have a small cavity or advanced decay, our team at Thousand Smile will provide the right treatment to restore your oral health.