By what age should a child ideally be drinking from a cup to help prevent tooth decay?

The ideal age for a child to start drinking from a cup is around 12 months. This developmental milestone is significant because transitioning from a bottle to a cup helps reduce the risk of tooth decay, which can be exacerbated by prolonged exposure to sugary liquids that are commonly consumed from a bottle. By one year of age, children are usually capable of managing a cup, and this shift encourages better oral hygiene practices, as they are less likely to sip frequent, unhealthy snacks that can remain in contact with their teeth for extended periods. Drinking from a cup limits the duration of exposure to liquids that can contribute to cavities, making it an important step in early childhood dental care. Additionally, this transition supports the development of oral motor skills, which are essential as children prepare for eating solid foods.