Tooth Decay (Dental Caries) - Causes, Stages and Treatment
Cavities start small but can lead to sensitivity, pain and infection if ignored. This guide explains how decay develops, what symptoms to watch for, and how we provide gentle cavity treatment for patients near Kangaroo Point and East Brisbane.
What is tooth decay
Tooth decay - also called dental caries - happens when bacteria in plaque turn sugars into acids that dissolve tooth minerals. Early decay can often be reversed with fluoride and diet changes. Deeper decay usually needs treatment to stop sensitivity, pain and infection.
Early stage - white spots
Minerals leach from enamel leaving matte white patches. Often no pain. This stage can be remineralised with fluoride and diet changes.
Cavity in enamel or dentine
When acid breaks through enamel into dentine, food traps and sensitivity can appear. We restore comfortably with tooth-coloured dental fillings.
Pulp involvement
Deep decay can inflame the nerve, causing lingering pain. Treatment may involve root canal treatment or a protective dental crown.
Common signs
- Sensitivity to cold, heat or sweets
- Food catching between teeth
- Visible brown or black spots
- Bad breath or an unpleasant taste
Who is at higher risk
- Frequent snacking on sugary or acidic foods or drinks
- Not brushing and flossing daily
- Dry mouth - medications or mouth-breathing
- Braces, dentures or deep grooves that trap plaque
- Children and teens with erupting molars
How to prevent cavities - and stop early ones
Daily home care
Brush twice daily with fluoride toothpaste and floss once a day. Spit - do not rinse - so fluoride stays on your teeth.
Smart diet
Keep sugary foods to mealtimes and swap sticky snacks for cheese, nuts or vegetables. Limit acidic drinks between meals.
In-clinic prevention
Topical fluoride and tailored advice. Deep grooves can be protected with fissure sealants - ideal for kids and teens. Learn more via kids dental care.
Gentle, modern cavity treatment options
Tooth-coloured fillings
Tooth-coloured fillings blend with your natural teeth and seal out bacteria. We remove only the softened tooth and keep as much healthy enamel as possible.
Root canal treatment
If decay reaches the nerve, root canal treatment can relieve pain and help save the tooth. A crown may be recommended for strength on back teeth.
Same-day emergency care
Severe toothache, swelling, or a broken tooth can escalate quickly. Same-day help is available when needed.
Dentist near Kangaroo Point for cavity treatment
If you are searching for dentist Kangaroo Point cavity treatment, our clinic in East Brisbane is nearby and set up for calm, efficient care. We help patients with early sensitivity through to urgent toothache, and we always explain options clearly before starting treatment.
- Convenient location: above Seasons IGA East Brisbane with free undercover parking and lift access.
- Local access: easy to reach from Mowbray Park and the Mowbray Park Ferry Terminal.
- Family-friendly approach: gentle care, prevention guidance and support for kids and adults.
- Clear next steps: we explain fillings, crowns, root canal treatment and expected costs before we begin.
When tooth decay may become urgent
Tooth decay can often be treated with a filling when it is found early. If decay reaches deeper tooth structure or the nerve, symptoms can change quickly and may need prompt dental assessment.
You may need urgent care for tooth decay pain if discomfort is worsening, affecting sleep or linked with swelling.
Call a dentist promptly if decay causes
- Toothache that is getting worse or keeping you awake
- Pain when biting or pressure around a decayed tooth
- Swelling in the gum, jaw or face
- A bad taste, pus or signs of a dental abscess
- A broken tooth, lost filling or sharp cavity edge
- Sensitivity that lingers after cold, heat or sweet foods
Related next steps
If a cavity has become painful or swollen, our emergency dentist Brisbane page for decayed teeth explains when to call and when symptoms may need hospital care.
For smaller cavities or chipped areas, read about tooth coloured dental fillings.
If decay has reached the nerve, you may need to understand root canal treatment for deep tooth decay.
For pain patterns and possible causes, see our guide to toothache from decay or infection.
