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Tooth Decay: Stages, Symptoms and Treatment Options (2026)

Ahmet Emin Bozova, DDS
Ahmet Emin Bozova, DDS

General Dentist — Endodontics & Restorative

5 min read
Updated: April 19, 2026
Stages of tooth decay and treatment options

Did You Know?

Dental caries (tooth decay) is the breakdown of tooth structure caused when bacteria in the mouth convert sugars and starches into acid. According to the World Health Organization, around half of the global population is affected by untreat...

01

What Is Tooth Decay?

Decay begins in the enamel and, if left untreated, progresses through the dentine and eventually into the pulp (the nerve and blood-vessel tissue). Each stage requires a different treatment.


02

The Stages of Tooth Decay

Stage 1: Enamel Caries (Early)

  • Symptoms: A white or brown spot, usually painless
  • Treatment: Fluoride application (remineralisation) or a small filling
  • Reversible: Yes, at this stage

Stage 2: Dentine Caries (Moderate)

  • Symptoms: Hot/cold sensitivity, mild pain
  • Treatment: Filling (composite or porcelain inlay)
  • Reversible: No — treatment is required

Stage 3: Pulp Involvement (Advanced)

  • Symptoms: Severe throbbing pain, night pain, lingering pain on heat
  • Treatment: Root canal treatment and a crown
  • Urgency: High — delay can mean losing the tooth

Stage 4: Abscess (Final Stage)

  • Symptoms: Severe pain, swelling, fever, pus
  • Treatment: Antibiotics plus root canal treatment or extraction
  • Urgency: Emergency — the infection can spread
  • See: Dental Abscess Treatment

03

How to Settle the Pain of a Decayed Tooth

Temporary measures for relief:

  • Ibuprofen (400–600 mg): Eases pain and reduces inflammation
  • Salt-water rinse: Reduces bacterial load
  • Clove oil: A natural, mild anaesthetic (see Tooth Pain Causes and Treatment)
  • Cold compress: Apply to the outside of the cheek if there is swelling

Clinical note: These are short-term measures only. Until the decay is treated, the pain will not resolve permanently — it will progress.


04

Treatment Options by Stage

Stage of DecayTreatmentPrice (2026)Time
Early (enamel)Fluoride / small filling800–2,000 TL1 visit
Moderate (dentine)Composite filling1,500–4,000 TL1 visit
Large cavityPorcelain inlay/onlay4,000–10,000 TL2 visits
Pulp involvementRoot canal treatment + crown8,000–20,000 TL2–3 visits
AbscessAntibiotics + root canal / extraction3,000–20,000 TL1–3 weeks
Non-restorableExtraction + implant12,000–30,000 TL3–6 months

05

Why Early Treatment Matters

Early TreatmentDelayed Treatment
A small filling is enoughRoot canal treatment and a crown needed
1 visit, painlessMultiple visits, painful process
1,500–4,000 TL8,000–20,000 TL
Tooth is preservedTooth may be lost
5 minutesWeeks to months

06

Preventing Tooth Decay

  1. Brush twice daily — fluoride toothpaste, soft brush, at least two minutes
  2. Floss once a day — prevents interdental caries
  3. Dental check-up every 6 months — early detection
  4. Professional cleaning — once or twice a year
  5. Limit sugary foods — particularly snacks between meals
  6. Drink water — prevents dry mouth and rinses bacteria away
  7. Fissure sealants — protect the grooved surfaces of children's back teeth

07

References

  1. Selwitz RH, Ismail AI, Pitts NB. Dental caries. Lancet. 2007;369(9555):51–59. PubMed
  2. World Health Organization. Global Oral Health Status Report: Towards Universal Health Coverage for Oral Health by 2030. Geneva: WHO; 2022. who.int
  3. Fontana M, Young DA, Wolff MS, Pitts NB, Longbottom C. Defining dental caries for 2010 and beyond. Dent Clin North Am. 2010;54(3):423–440. PubMed

Concerned about decay in one of your teeth? Early treatment saves the tooth and keeps costs to a minimum. At Derya Dental Clinic in Maltepe we will assess your situation and plan the right treatment together.

📞 0216 572 05 20 💬 WhatsApp appointment


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Related Treatment Pages

This content is for informational purposes only and does not replace medical diagnosis or treatment. Please consult a specialist for decisions about your oral and dental health.

Frequently Asked Questions

Common Questions

Can tooth decay heal by itself?
Very early enamel decay (a white spot) can be remineralised with fluoride. However, once a cavity has formed, decay will not heal on its own and treatment is required.
How do I settle the pain of a decayed tooth?
Ibuprofen and salt-water rinses can ease it temporarily. The definitive solution is to clean out the decay and place a filling or, if necessary, carry out root canal treatment. Our tooth pain guide has more detail.
Should a decayed tooth be extracted?
Extraction is a last resort. Most decayed teeth can be saved with a filling or root canal treatment. Preserving the natural tooth is always the priority.
Why does tooth pain get worse at night?
When you lie down, blood flow to the head increases and pressure inside the tooth rises. The distractions of daytime are also reduced, so the pain feels more intense. See our tooth pain guide for more.
Should decay in a child's baby tooth be treated?
Yes. Untreated decay in a primary tooth can cause infection that damages the developing adult tooth underneath, and early loss of a baby tooth can lead to space loss and later orthodontic problems.
What is the most effective way to prevent decay?
Regular brushing and flossing, combined with a dental check-up every 6 months. Limiting sugary snacks and drinking plenty of water also significantly reduce the risk. ---
Ahmet Emin Bozova, DDS

Author

Ahmet Emin Bozova, DDS

General Dentist — Endodontics & Restorative

Experienced in endodontics (root canal therapy) and restorative dentistry. Focuses on root canal treatments, dental fillings, and temporary prosthetic solutions to preserve oral health.

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