What Causes Tooth Decay (Cavities)?
The most common causes of tooth decay (cavities), the warning signs to look for, and when to seek help.
Permanently damaged areas in the hard surface of teeth that develop into tiny openings or holes. Understanding what causes tooth decay (cavities) is the first step to preventing and treating it.
The most common causes include sugary diet, poor oral hygiene, lack of fluoride, dry mouth. Often more than one factor is involved, which is why a proper assessment matters.
Watch for symptoms such as toothache, visible holes or pits, brown or white staining, sensitivity. If these persist or worsen, it is worth booking an appointment rather than waiting.
The good news is that tooth decay (cavities) is very manageable, especially when caught early. Our clinicians will explain the cause in your case and recommend a clear plan.
Frequently asked questions
Can tooth decay (cavities) be prevented?
Often, yes. Addressing the common causes — such as sugary diet — and keeping up regular check-ups greatly reduces the risk.