Start brushing your toddler’s teeth twice a day with fluoride toothpaste as soon as the first tooth breaks through the gum. Use a rice-grain-sized smear of toothpaste until age 3, then switch to a pea-sized amount. That’s the core recommendation from both the American Academy of Pediatrics and the American Academy of Pediatric Dentistry.
The basics sound simple, but the reality of getting a squirming toddler to cooperate with a toothbrush is another story. Here’s how to do it well, from positioning and technique to handling resistance.
The Right Toothbrush and Toothpaste
Look for a toothbrush with a small head that fits comfortably inside a toddler’s mouth and extra-soft bristles that won’t irritate sensitive gums. Many brands market toothbrushes by age range, which is a reasonable guide for head size. Let your child pick one with a favorite character on it if that helps build enthusiasm.
Use fluoride toothpaste from the start. For children under 3, a “smear” the size of a grain of rice is the right amount. After their third birthday, increase to a pea-sized dollop. These small quantities are effective at protecting enamel while keeping fluoride intake minimal if your toddler swallows some, which they will.
How to Position Your Toddler
Getting a good angle matters more than most parents realize. You need to see inside your child’s mouth clearly, which is hard to do when you’re both standing face to face. A few positions that work well:
- Lap position: Sit on the floor or a chair and lay your toddler’s head back in your lap, facing up. This gives you a clear view of all their teeth and lets you use both hands.
- Standing from behind: Stand behind your child while they face a mirror. Tilt their chin up slightly so you can reach the upper teeth. The mirror lets them watch what’s happening, which can be reassuring.
- Knee-to-knee: Sit facing another adult, with your knees touching. Lay the child across both laps so one person can hold their hands gently while the other brushes.
Whatever position you choose, the goal is the same: a stable head and a clear line of sight into the mouth.
Brushing Technique Step by Step
Hold the toothbrush at a 45-degree angle against the teeth, right where the tooth meets the gumline. Use gentle circular or small elliptical motions on just a few teeth at a time. You only need light pressure. Pushing hard doesn’t clean better and can irritate the gums or wear down enamel over time.
Cover three surfaces on every tooth: the outside (facing the cheek), the inside (facing the tongue), and the flat chewing surface on top. The insides of the front teeth are easy to miss, so tilt the brush vertically and use the tip to reach them. Once you’ve gone through all the teeth, gently brush the tongue to clear bacteria.
Aim for about two minutes total, though with a very young toddler you may need to work up to that. Brushing twice a day, morning and before bed, is the standard recommendation.
When Your Toddler Refuses to Brush
Resistance is normal. A toothbrush is an unfamiliar object going into one of the most sensitive parts of the body. If your toddler clamps their mouth shut or screams, it doesn’t mean you’re doing something wrong. It means they’re a toddler. Here are strategies that actually help:
Address sensory triggers. Some children are bothered by the taste or foaming of toothpaste. Try an unflavored, non-foaming variety. If cold water startles them, use warm water instead. If the bathroom itself feels overwhelming, try brushing in a different room, like in front of the TV during a favorite show.
Give them some control. Let your child hold the toothbrush and attempt to brush on their own first. Holding it close to the bristles gives them a better sense of control. Then you take a turn to do the thorough cleaning. Framing it as “your turn, my turn” reduces the feeling of something being done to them.
Try a different toothbrush. Some kids respond well to the vibration of an electric toothbrush, which also provides sensory input that can actually be calming. Others find the buzzing overwhelming and do better with a manual brush. Experiment.
Warm up the mouth area first. For children who are especially sensitive to touch around the mouth, gently rubbing their cheeks or using a soft, clean washcloth along the lips and gums before brushing can help desensitize the area. Deep pressure like bear hugs or gentle squeezes on the arms and shoulders before brushing can also settle a child’s nervous system.
Use a mirror and music. A mirror lets your child see exactly what’s happening, which removes some of the uncertainty. Playing a familiar song can serve as both a timer and a calming distraction.
What If They Swallow the Toothpaste?
Small, unintentional swallows of regular over-the-counter fluoride toothpaste are not toxic. This is exactly why the recommended amounts are so tiny. If your child swallows a rice-grain-sized smear, there’s no cause for concern.
Larger amounts of fluoride can irritate the stomach and cause nausea, vomiting, or diarrhea. If your toddler gets into the tube and eats a significant amount, give them something with calcium, like milk or yogurt. Calcium binds to fluoride and limits its effects on the stomach. Do not try to make them vomit. If you’re worried about the amount consumed, call Poison Control at 1-800-222-1222.
To prevent this, store toothpaste out of reach and always dispense it yourself rather than handing over the tube.
When to Start Flossing
Flossing becomes necessary once your child has two teeth that touch each other, with no gap between them. For most children, this happens around age 2 to 3. Toddler teeth that are widely spaced don’t trap food or plaque between them, so flossing isn’t needed until the gaps close. Children’s floss picks with small heads are easier to maneuver than regular floss.
How Long You’ll Need to Help
Plan to brush your child’s teeth for them, or at least closely supervise and follow up, for longer than you might expect. Children typically don’t have the fine motor skills and patience to brush effectively on their own until around age 10. Before that, letting them brush independently is great for building the habit, but a parent should always do a second pass to catch the spots they miss.
The American Academy of Pediatric Dentistry, along with the ADA and AAP, recommends scheduling a child’s first dental visit during the first year of life. This early visit establishes a baseline, catches any issues with enamel development, and gives you a chance to ask a pediatric dentist about your child’s specific teeth and brushing needs.