Tooth decay is caused by a variety of things; in medical terms, cavities are called caries, which are caused by long term destructive forces acting on tooth structures such as enamel and the tooth’s inner dentin material.
These destructive forces include frequent exposure to foods rich in sugar and carbohydrates; soda, candy, ice cream-even milk-are the common culprits. Left inside your mouth from non-brushing and flossing, these materials break down quickly, allowing bacteria to do their dirty work in the form of a harmful, colorless sticky substance called plaque.
The plaque works in concert with leftover food particles in your mouth to form harmful acids that destroy enamel and other tooth structures.
If cavities aren’t treated early enough, they can lead to more serious problems requiring treatments such as root canal therapy.