If your child struggles with cavities, you're not alone

Understand your child’s oral health and risk for cavities from a single saliva sample. 

5,000+ trusted mouths

As seen on

We have a children's cavity epidemic

Cavities, also known as dental caries, are an infectious and chronic disease. Cavities are caused by specific bacteria in saliva, that when present, can be passed from person to person, via kissing, sharing food or, simply living in the same environment.


of children by their teen years have had a cavity.


of children 6-11 years old suffer from tooth decay in the U.S.

You feel like you're doing everything right, but your child still suffers from cavities.

They're brushing. They're flossing. They're eating healthy.

And, of course they're seeing the dentist, yet they have 1, 2, 3 even 7+ cavities at the end of each visit.

You're doing everything to give your child a healthy future. You don't want your child to suffer physical pain or emotional trauma.

You need to get to the root cause.

Bristle's Oral Health Test helps you understand your child’s risk for cavities and oral health issues.

With a small, painless saliva sample, our at-home test measures 700+ bacteria and fungi to detect oral health issues, like cavities before they become a problem.

Better oral health is as easy as 1, 2, 3

Easy At-Home Testing

Delivered to your door in 2-3 business days, just spit, shake, and sent your sample to the lab in a convenient prepaid envelope.

Secure Lab Processing

Results are analyzed in a CLIA certified U.S. laboratory to ensure accuracy, validity, and confidentiality.

1:1 Coaching & Support

Our registered dental hygienists interpret your result, provide personalized coaching, and a specific action plan.

Get better oral care for your child, based on their biology

Good oral health takes more than brushing and flossing. We help you understand the balance of good and bad bacteria present in your child's saliva and give actionable steps to improve their health. 

We go way beyond the same advice you constantly hear and take a holistic approach to improving oral health at the biological level. Your custom recommendations are researched, vetted, and curated by our team.

Join 5,000+ Happy Mouths

Children's Oral Health Test

Designed for children 3+ years, our at-home test measures the levels of good & bad bacteria related to your child's oral health. Get a custom plan plus 1:1 coaching. Backed by leading dentists.

Get the full picture of your family's oral health with a test for you & your child. Add more tests for your partner & children for $129/each.

🚗 Free Shipping ⏱ 3-5 Day US Delivery

Trusted by leading dental clinics

  • "Since adding Bristle testing to my practice I've seen tremendous results. Parents have more information and data, which can be very motivating, and we now have metrics to determine if our treatments and protocols are actually shifting things toward health and balance in their children. Bristle is certainly paving the way toward better outcomes and understanding root cause issues."

    Dr. Staci Whitman, DDS | Pediatric Dentist

    NoPo Kids Dentistry

Healthy Mouths. Healthy Families. Healthy Future.

Good health starts with a healthy mouth

The oral microbiome is the complex ecosystem of bacteria, fungi, and more that lives inside your mouth. Some keep our teeth and gums healthy, while others cause damage and cause conditions like bad breath, tooth decay, and gum disease.

The latest research has also linked the oral microbiome to conditions like heart disease, Alzheimer’s, and diabetes. 

Your oral microbiome is the foundation of your oral health. We help you identify and eliminate the harmful bacteria in your mouth to improve your oral and overall health.

The Oral Microbiome Is Shared Within the Family

Maybe you or your partner suffer from oral health issues and one of your children do too. There could be a connection!

In children, oral microbiome formation is influenced by the transmission of bacteria (good and bad) from parents and their environment. Research links similarities between the oral microbiomes of mothers and those of their children, particularly early in life.

  • "As a pediatric dentist, I have the opportunity to help my patients establish habits to set them up for a lifetime of oral health. Bristle testing gives us detailed insight into the oral microbiome. Families have found the results to be fascinating. Once the root cause is determined through Bristle, we can help our patients implement a unique oral health care plan. I am grateful to Bristle for elevating the care we can offer to our patients."

    Dr. Amanda Hoffmeister, DDS | Pediatric Dentist

Developed in collaboration with leading dentists

Dr. Mark Burhenne

Functional Dentist & Founder of Askthedentist.com

“If you make one investment in your health this entire year, let this be it. The mouth is the gateway to your body and oral bacteria have been associated with a higher risk for systemic conditions including Alzheimer’s, diabetes, cardiovascular disease, and poor pregnancy outcomes.

You can’t be healthy without a healthy mouth. And what you don’t measure, you cannot manage.”

  • Dr. Mark Burhenne, DDS

    Functional Dentist | Founder of AsktheDentist.com

  • Kriston Reisnour RDH, BSDH, CCSH, CSOM, FAAOSH
    Dental Hygienist & Integrative Health Specialist

  • Dr. Jonathan Levine, DDS

    Prosthodontist, NYU Professor | Founder of GLO Science

  • Dr. Eric Pulver
    Oral Surgeon | Chief Dental Officer at Denti.Ai

  • Dr. Roshan Parikh, DDS

    General Dentist | President & CEO at Dntl Bar

When science and care, team up - EVERY child wins!

At Bristle Health, we're not just about testing, we're about nurturing, understanding, and promoting long-term oral health.