Many people put off going to the dentist when they notice a cavity, especially if it doesn't hurt.
„I'll go when I have time”, „it doesn't bother me yet”, „it may pass by itself” - these are common.
The reality is simple: a cavity never goes away by itself.
On the contrary, it gets worse over time.
What starts as a small problem turns into pain, infection and complicated and expensive treatments if ignored.
Below you see exactly how a cavity develops, step by step.
How an untreated cavity progresses: 4 stages
Stage 1 - Enamel decay (beginning)
Caries starts on the surface of the tooth, in the enamel.
Enamel is the hard layer that protects the tooth.
The bacteria in your mouth produce acids that attack the enamel and start to weaken it.
How you feel:
Nothing. It doesn't hurt at all.
What it looks like:
A white or slightly yellowish spot on the tooth.
What can be done:
In some cases, tooth decay can be stopped without a filling with simple treatments and good hygiene.
If you do nothing, the decay advances deeper.
Stage 2 - Dentine decay
The decay passes through enamel and into dentin, a softer layer inside the tooth.
This is where the tooth becomes more sensitive.
How you feel:
Sensitivity to cold, sweet or sour.
Short pain that goes away quickly.
What it looks like:
A small hole in the tooth, sometimes brown or black in color.
What can be done:
A simple filling solves the problem quickly and painlessly.
If you ignore even this stage, the decay reaches the nerve.
Stage 3 - Deep caries (gets to the nerve)
Inside the tooth is living tissue with nerves and blood vessels.
When decay gets here, inflammation occurs.
How you feel:
Strong pain that comes on suddenly.
It can be more intense at night.
High sensitivity to heat.
What can be done:
Root canal treatment is needed. The nerve is removed and the tooth is cleaned and saved.
It's a more complicated and expensive treatment than a lead.
If you don't treat even now, the infection develops.
Stage 4 - Tooth abscess (infection)
The infection at the root of the tooth has spread to the bone and gum.
An abscess forms - a pus pouch.
How you feel:
Severe and continuous pain
Swelling of the face or gums
Fever and general malaise
Sometimes unpleasant taste in the mouth
What can be done:
It is urgent.
Drainage, root canal treatment or sometimes tooth extraction.
Infection is no longer just in the tooth. It can affect the whole body.
Serious complications if you don't treat tooth decay
If the infection is ignored, it can spread in the body.
Can lead to:
- bone infections
- sinusitis
- serious throat infections
- blood infections (septicemia)
- damage to the heart or other organs
These situations are real, not just theory.
Why doesn't the plague go away by itself?
A cavity doesn't heal itself.
The tooth does not repair itself after it has been destroyed.
The bacteria continue to advance, even if it doesn't hurt.
Just because you don't feel anything doesn't mean the problem has gone away.
How much does it matter when you go to the doctor?
It's the timing that makes the difference.
- Getting started: simple and cheap treatment
- Later: complicated and expensive treatment
- Too late: you lose your tooth
A small cavity can be fixed in 20-30 minutes.
An implant can take months.
What to do if you suspect you have a cavity
- It doesn't hurt: go for regular check-ups
- Feel sensitivity: schedule as soon as possible
- You have pain or swelling or fever: see a doctor urgently
Don't wait for it to pass by itself. It won't.
How to prevent tooth decay
A few simple things make all the difference:
- Brush your teeth twice a day
- Floss daily
- Avoid excess sugar
- Get checked every 6 months
- Do regular professional sanitation
Conclusion
An untreated cavity doesn't stay small.
It turns into a big problem.
If you go on time, treatment is simple, quick and pain-free.
If you delay, it gets complicated and expensive.
The easiest thing you can do: get it checked.
Article written by the Smile City medical team. The information presented is for educational purposes and does not replace a personalized dental consultation.
Frequently asked questions about tooth decay
Does brushing my teeth better make cavities go away?
No. Brushing prevents but does not cure a cavity that has already formed.
Should it be treated if it doesn't hurt?
Yes. The faster, the simpler.
Can I take antibiotics instead of treatment?
No. Antibiotics don't solve the cause.
Why does it hurt more at night?
Because blood pressure increases in the head area when you lie down.