Join 7,000+ members

Bristle Oral Health Test

Measure the levels of good & bad bacteria in your mouth. Understand your oral health & Identify the root-cause of conditions early on. Get a custom plan to improve. Backed by leading dentists.

🚗 Free Shipping ⏱ 3-5 Day US Delivery 💲 HSA/FSA Accepted

As seen on

We've helped over 7,000 people improve their oral health

4.84 out of 5 stars

  • I found Bristle while taking steps to fix some recurring gut issues, I wasn't aware of how connected your mouth flora and gut flora are until I began following the Bristle regiment and now my overall digestive and oral health are better than I even thought possible. 


  • Chronic bad breath has been bane of my life for years and I've had no idea why! Bristle was the first test to identify what was causing it and give me actionable steps I can take to fix it. The coaching session was incredibly helpful for answering my questions and tailoring my care plan to my needs.


  • It's an exciting company in terms of how it can help individuals but also how it can use big data and science to learn about oral health, find patterns, and solve problems.


  • So nice to get this deep healing level of help and advice and guidance . Their wisdom is so helpful and everyone is so efficient.


  • My first time experience with Bristle was positive and I now have hope my mouth will feel better.


  • I need to get to the bottom of my halitosis and this is the only company that seems to be using science to fix it for good


How it works


Order your test - we'll deliver it directly to you in 2-3 days.


Send your saliva sample to our lab in a prepaid envelope.


Get your oral health report card & action plan in two weeks.


Measure your progress in 3-4 months with your second test!

Identify the root cause of oral conditions

Oral health is rooted in your oral microbiome. Our test measures 700+ bacteria, fungi and viruses in your saliva to help you understand your oral health and pinpoint imbalances before they become problems.  

Chronic bad breath

Inflamed gums

Oral thrush

Burning mouth syndrome

Gum recession

Weird tastes

Get personalized care beyond "brush and floss"

Every test comes with actionable recommendations based on your unique results. Small tweaks to diet, hygiene and your everyday oral care products can make big changes to your oral health. Most Bristle users see significant change within 30-days. 

“When I took my second Bristle test six months later, my jaw dropped. I haven’t had to have any work done at the dentist since I started down this new path, just cleanings! It’s unbelievable!! I honestly can’t thank Bristle enough.”


Read Wendy's story

See how you'll improve with Bristle

Sign up and receive a sample report

Developed in collaboration with leading dentists

Dr. Mark Burhenne

Functional Dentist & Founder of

“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

  • 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

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.

Learn the science

Frequently asked questions