Baby bottle tooth decay, also called early childhood caries, is one of the most common and preventable problems dentists see in young children. It often affects the upper front teeth first and can progress quickly. Small changes in feeding habits can make a big difference.
When a baby falls asleep with a bottle of milk, formula or juice, the sugars pool around the teeth for hours. Saliva flow decreases during sleep, so bacteria have more time to produce acids that attack enamel. Frequent sipping throughout the day has a similar effect.
Look for chalky white spots or lines near the gumline, especially on the upper front teeth. These can progress to brown or black areas and holes. Lift your child's lip regularly to check.
Decay can cause pain, infection and difficulty eating and sleeping. Severe cases may require treatment under general anaesthesia. Early loss of baby teeth can affect speech and the alignment of adult teeth.
Avoid putting your child to bed with a bottle other than water. Wipe gums after feeds before teeth appear, and brush teeth twice a day once they do. Introduce a cup from around six months and aim to stop bottle use by around twelve to eighteen months.
Book your child's first dental visit by their first birthday. Early check-ups allow problems to be caught early and give you guidance on feeding and brushing.
Moving from a bottle to an open cup or a cup with a straw is an important step for protecting teeth. Many dentists and paediatricians recommend introducing a cup from around six months of age and aiming to stop bottle use by around twelve to eighteen months. Start by offering water in a cup at meal times, then gradually replace bottle feeds with cup feeds. Night-time bottles are often the hardest to stop, so try gradually diluting the milk with water over several nights until the bottle contains only water. Be patient and consistent, as it may take a few weeks for your child to adjust.
Many drinks marketed for children contain added sugars, including flavoured milks, fruit juices, juice drinks and some formula-based drinks for toddlers. Even natural fruit juice contains sugars that can contribute to decay when sipped frequently. Herbal drinks and teas given to babies are sometimes sweetened. Reading labels helps identify hidden sugars, which may be listed under names such as sucrose, glucose, fructose, syrup or honey. Water and plain milk are the best drinks for young children. If juice is given, offer it only at meal times, in small amounts and from a cup rather than a bottle.
If your child develops tooth decay, early treatment is important. Very early white spots may be reversed with fluoride varnish and improved habits. Small cavities may be treated with fillings, while more extensive decay may require crowns or extraction. Treating young children can be challenging, and some children with severe decay may need treatment under general anaesthesia for safety and comfort. After treatment, it is essential to address the habits that caused the decay to prevent it from recurring. Your dentist will provide guidance on feeding, brushing and diet to help protect your child's teeth.
Breast milk alone is less likely to cause decay, but frequent night feeding combined with other sugars can increase risk. Clean teeth gently after feeds.
Frequent juice exposes teeth to sugar and acid. Water and milk at meal times are better choices.
Very early white spots may be reversed with fluoride and better habits. Cavities need treatment.
Book your child's first dental check-up with our friendly team.
Call 03 751 0245 WhatsApp 056 536 4536 Email Us