Baby teeth will fall out anyway. Why should I worry if they have cavities?
The primary, or ‘baby’ teeth are important for the growth of the jaw and the permanent teeth. When primary teeth are lost early, the other teeth can shift, leaving not enough space for the permanent teeth to come in properly.
Large cavities often lead to infection and pain. Having a toothache and needing the tooth extracted can be a frightening experience for some children and is a common cause of dental anxiety in adults.