BABY TEETH: WHEN TO BRUSH AND WHAT TOOTHPASTE

BABY TEETH: WHEN TO BRUSH AND WHAT TOOTHPASTE

Today’s answered questions are all about baby teeth. There seems to be a lot of confusion surrounding when and what to do with those baby teeth. Here’s the quick scoop:

When should I start brushing my baby’s teeth?

The short answer is when they have broken through the gum line. Now I don’t personally get too worked up about the tiny little single tooth that is just barely starting to protrude through the gums. I am much more formal about my twice daily brushing with my kiddos once there is a row of teeth. For some kids that’s as early as 6-8 months, while for others it is more like 10-11 months. It all depends on how quickly the child teethes. Now that doesn’t mean that I’m not paying attention earlier. I find it easy enough to wipe the teeth off after my baby has eaten and I’m already wiping off their face (when they are in that early, super messy, high-chair stage). I’ll also help rinse off the teeth with a final drink of water out of the sippy cup before I get the child out of the highchair.

How do I prevent bottle rot?

“Bottle rot” happens when milk sugars repeatedly sit on the back of the teeth and cause tooth decay. If you’ve seen those kiddos with silver caps all along the front teeth then you know what I’m talking about. Bottle rot is a bit of a misnomer. While it usually happens from babies being put to bed with bottles, it can certainly happen from babies who breastfeed off and on all night (i.e., the babies who co-sleep with mom and breast feed all throughout the night, falling asleep on the boob). Once your baby has some teeth, get the order correct. First, give the milk. Second, brush the teeth. Finally, lay the baby in bed. The key is brushing the teeth between milk and bedtime. Never give a baby a bottle of milk (or juice for that matter) in bed.

What toothpaste should I use?

There are essentially 3 stages of toothpaste:

“Trainer” toothpastes are essentially designed for babies and toddlers (think 6 months to 2 ½ years old). They taste good and are safe for a child to swallow. Trainer toothpastes do not have fluoride (to prevent “fluorosis”– or an excess of fluoride, since the very young child cannot reliably spit it out).

The second stage of toothpaste is the “kid” toothpastes. These toothpastes usually have popular characters on the front and kid-friendly flavors like “tooty-fruity” and “bubble gum.” These toothpastes have fluoride and are designed to be used by children who are old enough to spit and not swallow the toothpaste. (For most kids, that is around 2 ½ years old).

The final stage of toothpaste is essentially the “adult” toothpastes. Most people transition to these toothpastes in the teen years. These toothpastes have more mature flavors like “mint” and are angled at helping things like promoting fresh breath and preventing plaque or tarter build up. These toothpastes also have fluoride in them.

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About The Author

Dr. Monica Wonnacott

I'm a pediatrician and a mom. I've been doing this doctor thing for 10 years, and love it. I'm known for giving parents the straight scoop without always sugar-coating it. And I believe in educating parents. The more you know, the better care you give your kids.

Dr. Monica Wonnacott


I'm a pediatrician and a mom. PediatricAnswers.com is my blog where parents can get the straight scoop on their child's health, largely based on my experience in the office and at home. I don't diagnose on the site, so please don't ask. These are just my opinions. Use this site as a resource. And trust your parent gut.

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