What is the number one cause for cavities?

The primary culprit behind cavities isn’t just sugar—it’s plaque bacteria that feed on sugar and produce enamel-eroding acids. Even with regular brushing and flossing, these microscopic organisms form protective biofilms in hard-to-reach areas, making them up to 1,000 times more resistant to removal. Understanding this bacterial process reveals why traditional oral hygiene methods, while essential, may not provide complete protection against cavity formation.