Your baby’s mouth changes quickly in the first two years. Before teeth appear, gentle cleaning helps remove milk and food residue. Once the first tooth comes in, regular brushing becomes part of daily care and helps protect against tooth decay.
Good oral care in infancy is simple: clean the gums, brush the teeth twice a day with a tiny smear of fluoride toothpaste, and make sure your baby sees a dentist by age 1 or within 6 months of the first tooth appearing. These early habits can make later tooth care much easier.
Before the first tooth: cleaning the gums
You do not need to wait for teeth to start caring for your baby’s mouth. After feeds, you can gently wipe the gums with a clean, damp washcloth or gauze. This is mainly about getting your baby used to mouth cleaning and keeping the mouth fresh.
A consistent bedtime routine can help. Many families clean the gums or brush the teeth after the last feeding, then move on to pajamas and sleep.
When the first tooth appears
As soon as the first tooth breaks through, start brushing it. Even one tooth can develop decay. Early brushing also helps your baby get used to the feeling of a toothbrush in the mouth.
Do not put your baby to bed with a bottle of milk, formula, juice, or sweet drinks. Frequent exposure to sugars during sleep raises the risk of tooth decay.
Fluoride toothpaste: how much to use
Once teeth are present, use fluoride toothpaste. For babies and young toddlers, only a tiny amount is needed. The goal is to brush the teeth, not to fill the toothbrush.
If your baby resists brushing, let them hold a second toothbrush while you do the brushing with the real one. This can make the routine calmer and more cooperative.
Choosing a toothbrush and making brushing easier
The best toothbrush is one your baby tolerates and that lets you clean the teeth well. A very soft brush is usually easiest for tiny mouths. You may need to brush for your baby at first, even if they want to grab the brush and help.
As your baby grows, you can slowly involve them more. Let them practice holding the brush, but continue doing the actual cleaning until they have the coordination to do it well. Most children still need help with brushing for years.
Why early brushing matters
Tooth decay can start early, especially when teeth are exposed often to milk, formula, juice, or sugary foods and drinks. Enamel on baby teeth is thin, so small amounts of plaque and sugar can cause damage over time. Good brushing helps remove plaque before it has a chance to harm the teeth.
If you notice swelling, a tooth that is very loose after injury, or a darkened tooth after a fall, seek dental advice promptly. Tooth injuries in babies should not be ignored.
The first dental visit by age 1
Plan your baby’s first dental visit by the first birthday, or within 6 months after the first tooth appears. This early visit is a chance to check tooth eruption, review brushing, and talk about feeding and habits that affect the teeth.
You do not need to wait for a problem to schedule the first dental visit. Early visits are often short and focused on prevention and parent coaching.
Feeding habits that support healthy teeth
Oral care and feeding habits work together. Frequent exposure to sweet drinks can increase cavity risk, especially when babies sip over long periods or fall asleep with a bottle. Water is the best drink between meals once your baby is old enough for it, and milk or formula should be used as recommended for age and growth.
What about teething pain?
Teething can make babies fussy and drooly, but it does not usually cause severe illness. A clean teething ring, a gentle gum massage, or a cold washcloth can soothe some babies. If your baby seems very unwell, has a fever, or has symptoms that are more than mild teething discomfort, check with your pediatrician.
When to call your pediatrician
Call your pediatrician or pediatric dentist if you have questions about brushing, fluoride toothpaste, or your baby’s dental development. You should also reach out if you notice signs that may need an exam.
