WHAT IS DENTAL CAVITY?
Dental cavity is the medical term for tooth decay. It refers to the destruction of tooth structure and can affect both the enamel (outer coating of the tooth) and dentine (softer layer beneath the enamel) of tooth.
Stages of dental caries:
HOW IS IT CAUSED?
Different types of bacteria normally live in the human mouth. They accumulate (along with saliva, food particles and other natural substances) on the surface of the teeth in a sticky film called plaque.
Some of the bacteria in plaque can convert sugar and carbohydrates (starches) in the foods we eat into acids. These acids dissolve minerals from the surface of the tooth, forming microscopic pits or erosions that get larger over time causing cavities.
WHO IS AT RISK?
Cavities are generally more common among children but adults are also at risk. Some factors increase the risk:
- Diet high in carbohydrates (sugar and starch)
- Consumption of un-fluoridated water
- Dry mouth
- Some medications
- Improper oral hygiene
WHAT ARE THE SIGNS OF TOOTH DECAY?
Ø A cavity or hole in the tooth
Ø Toothache
Ø Increase in tooth sensitivity (to sweet foods or to hot and cold temperatures)
Ø Food trap between teeth
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