26/12/2025
Putting a baby to bed with a bottle of milk or juice might seem like a soothing way to help them drift off, but it is a primary risk factor for a serious dental condition known as Baby Bottle Tooth Decay. This condition occurs when the sugars present in almost all beverages except water—including breast milk, formula, and fruit juices—linger in a sleeping infant's mouth. As the baby sleeps, these liquids pool behind the front teeth, creating a breeding ground for harmful bacteria. These bacteria metabolize the sugars to create acids that aggressively dissolve the tooth enamel, which is significantly thinner and more fragile in infants than in adults.
The danger is magnified at night because the body's natural defense mechanism, saliva, slows down during sleep. Without enough saliva to rinse away the acidic buildup, the teeth remain bathed in sugar for hours at a time. If left untreated, this "silent" decay can lead to painful infections, difficulty eating, and even premature tooth loss. Because primary teeth serve as critical placeholders for adult teeth, their early loss can result in future speech delays and crooked permanent teeth. Pediatric dentists recommend a "bottle-free" bedtime routine: ensure the baby finishes their feeding before being placed in the crib, and gently wipe their gums with a clean, damp cloth to remove any remaining sugar residue before they sleep.