Signs of Tooth Decay in Epsom:
Causes, Symptoms & Treatment
Sensitivity, dark spots, or pain when you eat? These can all be early signs of tooth decay. At Epsom Smiles, we catch decay early — before it becomes painful, expensive, or harder to treat.
Severe toothache or swelling? Decay that reaches the nerve needs urgent care. Call us for a same-day emergency appointment: 01372 679192.
Tooth Decay Is the Most Common Reason People Need Dental Treatment
Tooth decay (dental caries) is the single most common chronic disease in the UK — affecting one in three adults and around a quarter of children by age five. It happens when bacteria in your mouth feed on sugars from food and drink, producing acid that gradually dissolves the hard outer layer of your teeth (enamel).
The critical thing to understand: early decay is often completely painless. By the time you feel it, the damage is usually more advanced and the treatment more involved. That's exactly why regular check-ups matter — we can spot the earliest signs before you'd ever notice them yourself.
Spring Smiles offer: New patient check-ups are currently 50% off — just £30 (usually £60). We'll examine every tooth, take X-rays where needed, and catch any decay early. Claim your offer →
How Tooth Decay Develops — Stage by Stage
Decay doesn't happen overnight. It progresses through distinct stages — and the earlier we catch it, the simpler and less costly the treatment.
Demineralisation (White Spots)
Acid begins to strip minerals from the enamel surface. You may notice chalky white spots on your teeth — but no pain. At this stage, decay can actually be reversed with fluoride treatment, improved brushing, and dietary changes. No filling needed.
Enamel Breakdown
If demineralisation continues, the enamel breaks down and a cavity forms. You might see a brown or dark spot, or your dentist may detect it on an X-ray before it's visible. A small filling at this stage is quick, straightforward, and preserves most of the tooth.
Dentine Involvement
Once decay reaches the dentine (the softer layer beneath enamel), it spreads faster. You'll likely notice sensitivity to hot, cold, or sweet things. The cavity is larger now and needs a more substantial filling — but the tooth can still be saved comfortably.
Pulp & Nerve Damage
Decay reaches the pulp (nerve and blood supply). This causes severe, throbbing pain that may keep you awake at night. Treatment at this stage typically requires root canal treatment or, in some cases, extraction. This is what we want to help you avoid.
Already in pain? If you have a persistent toothache, swelling, or a bad taste in your mouth, the decay may have progressed to infection. Read our guide to toothache in Epsom or call us directly — don't wait for it to get worse.
Signs of Tooth Decay to Watch For
Some of these are obvious, others are easy to miss. If you recognise any of these, it's worth getting checked:
- Sensitivity to hot, cold, or sweet — a sharp twinge when drinking tea, eating ice cream, or having something sugary. More on what causes sensitive teeth →
- A visible hole or pit in a tooth — you might feel it with your tongue or see it when looking in a mirror
- Brown, black, or white spots on a tooth — these discolourations often appear on the biting surfaces or between teeth
- Pain when biting down — especially on a specific tooth, which may indicate decay has weakened the structure
- Food getting stuck in the same place repeatedly — a cavity can create a trap that didn't exist before
- Bad breath or an unpleasant taste — bacteria feeding on decayed tooth matter produce odour
- A dull, persistent ache — this can indicate deeper decay approaching the nerve
- A broken or chipped filling — decay can undermine existing fillings, causing them to fracture
Don't wait for pain. Most early decay has no symptoms at all. A check-up with X-rays is the only reliable way to catch it. New patients: 50% off this spring.
What Causes Tooth Decay?
Decay is caused by acid — but several everyday factors control how much acid your teeth are exposed to.
Frequent Sugar Intake
Every time you eat or drink something sugary, bacteria in your mouth produce acid for around 20–30 minutes. It's the frequency that matters most — five cups of sugary tea throughout the day is far worse than one slice of cake with dinner.
Poor Brushing Habits
Plaque builds up on tooth surfaces within hours. If it's not removed with proper twice-daily brushing, the bacteria within it produce acid continuously. Areas that are missed — particularly along the gum line and between teeth — are where decay most commonly starts.
Not Cleaning Between Teeth
Your toothbrush can't reach between teeth. Without floss or interdental brushes, plaque sits undisturbed in these gaps — which is why decay between teeth is one of the most common types we see, often only detectable on X-rays.
Acidic Food & Drinks
Fizzy drinks, fruit juices, wine, and citrus fruits are acidic even without added sugar. They soften enamel directly. Sipping acidic drinks throughout the day — even diet versions — keeps your teeth in a constant acid bath.
Dry Mouth
Saliva is your mouth's natural defence against decay — it neutralises acid and washes away food particles. Medications, mouth breathing, and certain medical conditions can reduce saliva flow, dramatically increasing decay risk.
Rinsing After Brushing
One of the most common mistakes: rinsing your mouth with water immediately after brushing washes away the fluoride that protects your teeth. Spit, don't rinse — let the fluoride stay on your teeth and do its job.
How We Treat Tooth Decay at Epsom Smiles
Treatment depends entirely on how far the decay has progressed. We always aim for the least invasive option that protects the tooth long-term — and we'll explain everything clearly before we begin.
- Fluoride treatment (very early decay). If we catch decay at the white-spot stage, concentrated fluoride can help remineralise the enamel and reverse the damage entirely. No drilling, no filling — just prevention in action.
- Composite (white) fillings. For small to moderate cavities, we remove the decayed material and fill the tooth with tooth-coloured composite resin. It's strong, discreet, and preserves as much healthy tooth as possible. Most fillings take 20–40 minutes.
- Inlays, onlays and crowns. When a cavity is too large for a standard filling, we restore the tooth with a custom-made inlay, onlay, or crown depending on how much healthy tooth remains. These are precision-made to fit your tooth exactly — strong, long-lasting, and designed to look natural.
- Root canal treatment. When decay reaches the nerve, root canal treatment removes the infection, saves the tooth, and prevents extraction. Modern root canal treatment is no more uncomfortable than having a filling — the reputation is outdated.
- Extraction (last resort). If the tooth is too damaged to save, we'll remove it carefully and discuss replacement options — implants, bridges, or dentures — to restore function and appearance.
Concerned about cost? Our fees page has full pricing, and we offer interest-free payment plans for treatments over a certain value. We'll always give you a clear price before any treatment starts.
Why Choose Epsom Smiles for Your Check-Up?
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We Catch Decay Before It Costs You
A small filling is quicker, cheaper, and more comfortable than a crown or root canal. Regular check-ups with us mean problems are found while they're still small — saving you time, money, and discomfort down the line.
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Thorough Exams — Not a Quick Glance
Every check-up includes a full examination of all your teeth, gums, and soft tissues. We use X-rays when clinically indicated to find hidden decay between teeth and below the surface — the kind you'd never spot yourself.
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Honest, Preventive Approach
We'd rather teach you how to prevent decay than treat it repeatedly. We'll give you practical, personalised advice about diet, brushing, and fluoride — not generic leaflets — based on what we actually see in your mouth.
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New Patients Always Welcome
You don't need to be an existing patient. Whether you've not seen a dentist in years or you're looking for a new practice in Epsom, we'll make the process straightforward and judgement-free.
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Transparent Pricing — No Surprises
We explain the cost of any recommended treatment before we start. Our fees page is fully transparent, and finance options are available when needed.
"I hadn't been to a dentist in over five years and was dreading it. The team at Epsom Smiles were so reassuring — they found two small cavities, filled them the same day, and I barely felt a thing. Genuinely wish I'd gone sooner."Google Review
Tooth Decay FAQs
Early decay often has no symptoms at all — which is why regular check-ups are so important. As it progresses, you may notice sensitivity to hot, cold, or sweet foods, visible holes or dark spots on your teeth, pain when biting, or food getting stuck where it didn't before. If you're experiencing any of these, book a check-up as soon as possible.
Yes — but only at the very earliest stage (demineralisation), before a cavity has formed. At this point, the enamel can be remineralised with fluoride treatment, improved oral hygiene, and dietary changes. Once a physical cavity exists, it cannot heal on its own and needs a filling. This is why catching decay early at a check-up is so valuable.
Filling costs at Epsom Smiles depend on the size and location of the cavity. We use tooth-coloured composite fillings as standard. You can find our current pricing on our fees page, and we always confirm the cost before starting any treatment. Finance options are available for larger treatments.
No. We use local anaesthetic so you won't feel pain during the procedure — just some pressure and vibration. Most patients are surprised at how quick and comfortable modern fillings are. If you're anxious about dental treatment, let us know — we're experienced with nervous patients and will take things at your pace.
Brushing is essential but it's only one factor. Frequent sugar or acid exposure, not cleaning between teeth, rinsing with water after brushing (which washes away fluoride), dry mouth from medications, and even the natural shape and spacing of your teeth all play a role. A check-up lets us look at your specific risk factors and give you targeted advice that actually makes a difference.
Decay doesn't stop on its own — it only gets worse. Left untreated, a small cavity becomes a large one. Eventually it reaches the nerve, causing severe pain and infection (a dental abscess). At that point, treatment is more complex, more expensive, and may mean losing the tooth. A small filling now prevents a root canal or extraction later.
For most adults, every six months is ideal. Some patients with lower risk may be fine with annual visits, while others (higher decay risk, gum disease, or medical conditions) may benefit from more frequent appointments. We'll recommend the right interval for you based on what we find at your check-up.
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Worried About Tooth Decay?
Let's Catch It Early — Before It Becomes a Problem.
A simple check-up is all it takes. We'll examine your teeth, take X-rays where needed, and give you a clear picture of what's going on — with no pressure and no surprises. New patients are always welcome.
Or email us at enquiries@epsomsmilesdental.co.uk