As we head into flu and cold season in Sycamore, it’s a good time to think about the small habits that make a big difference in your child’s oral health. One of the most overlooked is replacing their toothbrush after they’ve been sick.
It might seem like a minor detail, but making sure your child gets a new toothbrush after illness plays a big role in preventing reinfection and supporting their recovery. Whether your child sees Dr. Sarah Barysenka, our pediatric dentist, or Dr. Peter Barysenka, our expert orthodontist, we care deeply about their health, hygiene, and smile at Sycamore Orthodontics and Pediatric Dentistry.
Let’s explore why swapping out your child’s toothbrush after an illness is more important than you might think!
Why You Need a New Toothbrush After Illness
When your child gets over the flu, strep throat, a stomach bug, or even a cold, the germs that caused their illness may still be lingering on their toothbrush. Using the same brush after recovery increases the risk of reinfection or spreading bacteria to other family members.
Here’s why a new toothbrush after illness matters:
- Bacteria and Viruses Can Survive on Toothbrush Bristles: Some viruses can live on moist surfaces for hours or even days. Even if the illness has passed, lingering germs can be reintroduced to your child’s system.
- Weakened Immune Systems Need Extra Support: After fighting off illness, your child’s immune system may still be recovering. Don’t risk triggering a second round by using a contaminated toothbrush.
- Bristles Can Harbor Mucus, Blood, or Saliva: If your child had a sore throat or nose congestion, their brush likely collected residual traces of bacteria and mucus.
- Toothbrushes Aren’t Easily Sterilized: Running hot water over a toothbrush isn’t enough. Disinfecting methods aren’t always reliable, and replacing the brush is the safest choice.
- It’s an Easy Preventative Step: A toothbrush swap costs less than a cup of coffee but can save you another trip to the office.
Smart Brushing and Flossing for Healthy Smiles
Healthy brushing and flossing habits are key to keeping your child’s smile strong—especially during and after illness. When kids feel under the weather, brushing might be the last thing on their minds. But it’s vital to keep up their routine to:
- Reduce bacteria buildup
- Protect against cavities and gum issues
- Help freshen breath during illness
Brushing Tips:
- Use a soft-bristle brush and fluoride toothpaste.
- Brush at least twice a day, morning and night.
- Replace toothbrushes every 3–4 months or sooner if bristles are frayed.
Flossing Tips:
- Floss once daily, ideally before bed.
- Begin flossing once teeth start to touch.
- Help your child floss until they can do it well on their own.
Even infants and toddlers benefit from gum care. Wipe their gums with a damp cloth after feeding them. As teeth erupt, switch to brushing with a small, soft brush and fluoride toothpaste. For kids three and up, a pea-sized amount of toothpaste is best. Keep an eye on their brushing skills until they can clean all areas effectively on their own.

FAQ: Oral Health During Illness
1. Should my child still brush their teeth when they’re sick?
Yes! Brushing removes bacteria that can contribute to cavities, bad breath, and gum problems. Even if they’re not eating much, brushing keeps their mouth healthier during illness.
2. What if my child feels too tired to brush?
Try brushing for them or switching to a smaller brush. Let them sit instead of standing. Every little bit helps; even a quick brush before bed is better than nothing!
3. Does vomiting affect teeth?
Yes. Stomach acid from vomiting can weaken tooth enamel. Wait 30 minutes before brushing (to avoid damaging enamel), then rinse with water and brush gently with fluoride toothpaste.
4. Can I sanitize my child’s toothbrush instead of replacing it?
You can try soaking in antibacterial mouthwash or using a UV sanitizer, but it’s still safest to use a new toothbrush after illness. Disinfecting isn’t always effective against all types of germs.

What Sets Sycamore Orthodontics and Pediatric Dentistry Apart
At Sycamore Orthodontics and Pediatric Dentistry, we provide full-spectrum, compassionate care from your baby’s first tooth through their teenage smile transformations.
Here’s what makes us different:
- One Convenient Location for both dentistry and orthodontics
- Pediatric and Orthodontic Experts with specialized training
- A Fun, Friendly Atmosphere your kids will love
- Modern Technology for fast, comfortable, effective care
- Flexible Financing to fit your family’s needs
- True Continuity of Care from early childhood to young adulthood
At Sycamore Orthodontics and Pediatric Dentistry, our team understands the needs of growing families in Sycamore. Routine cleanings, first pediatric or orthodontic visits, and braces are all part of your child’s path to a healthy smile, and we’re here to guide them every step of the way.
Ready to make your child’s dental health a priority this flu season? Schedule a visit with our team in our Sycamore, IL office today!
