July 17, 2026

Your Dental Cleaning Might Be Making You Sicker (Here's What to Ask For)

You feel fine, so your mouth is fine? Not always. The mouth-body connection can reveal inflammation and heart risk long before you feel a thing.

Your Dental Cleaning Might Be Making You Sicker (Here's What to Ask For)

Most people think going to the dentist every six months is the responsible thing to do. You show up, you get your teeth cleaned, somebody tells you everything looks fine, and you head home feeling like you took care of yourself.

So it's a little jarring when a wellness dentist tells you that same cleaning might be part of the reason your health is slowly going the wrong direction.

That's exactly what Dr. Katie To told me when she came on The Trusted Pharmacist. Katie is a Houston-based wellness dentist who looks at your mouth as part of your whole body, not just your teeth. I went in knowing next to nothing about what she does, and I left with a full page of notes and one phrase stuck in my head: the mouth-body connection.

 

Why "Normal" Doesn't Mean Healthy

One of the first things Katie said is that no symptoms doesn't mean nothing's wrong. You can have zero pain and still have something building in your mouth for years before you ever feel it.

If you've heard me say "your labs are normal but you feel awful," this is the dental version of the exact same problem. Normal by the system's standard is not the same as optimal. Wait until it hurts and you've waited until the damage is already done.

Her take on the cleaning was blunt. When a dentist cleans your teeth without a saliva test, they don't really know what they're cleaning off. Think about it. Your doctor isn't going to check your cholesterol by looking at you and saying you seem healthy. They run bloodwork. A cleaning with no saliva check is that same kind of guessing.

 

What Your Mouth Is Actually Telling You

The saliva test your cleaning skipped

In her office, Katie uses a phase contrast microscope to look at a live sample from under your gum. On the slide she can see spirochetes and other bad bugs, plus white blood cells that tell her your immune system is already fighting a chronic infection.

Spirochetes are the same type of bacteria tied to the plaque behind cognitive decline. Most people carry them around for decades and have no idea, coming in every six months, proud they never miss an appointment.

Your mouth changes with your hormones

About 80% of the people who listen to my podcast are women between 35 and 60, so this part really got me. Katie walked me through how a woman's mouth changes at every hormonal stage of life.

In the teen years, gums get inflamed and bleed easier around the cycle. Pregnancy shakes everything up again. Then perimenopause and menopause arrive, and one of the most common complaints she hears is dry mouth. A lot of women suddenly get five or ten cavities after a lifetime of none and feel blindsided. Nobody prepared them, the same way nobody prepared them for menopause in the first place.

Mouth breathing beats sugar as a cavity cause

This one caught me off guard. Katie said the number one reason her patients get cavities isn't sugar. It's mouth breathing.

When you breathe through your nose, you make nitric oxide, and that helps keep your mouth in good shape. Mouth breathing, especially at night, dries everything out and lets the bad bacteria take over. That's also why she's careful about the whole mouth-taping trend. If you can't breathe through your nose, taping your mouth shut is the wrong answer. Go see an ENT first. Your tongue is supposed to rest on the roof of your mouth, and when it doesn't, that can point to a tongue tie or an airway problem worth looking into.

The heart connection I won't forget

Katie told me that when researchers study the plaque in cardiovascular patients, they trace the bacteria back to the mouth in the large majority of cases. She had a patient sent to her by his own cardiologist after a heart attack, because they found oral bacteria right there in his plaque.

He'd seen the same dentist for 30 years and never had any pain. A 3D scan found a big hidden infection under a front tooth from a root canal he'd had done three decades earlier. It had been draining down into his body that whole time. Everything from the neck up is upstream, she told me. A silent infection in your jaw drains downstream into your heart and your gut even when you never feel a thing.

The medications drying out your mouth

This is where my side of the counter comes in. Dry mouth isn't just annoying. It wipes out the bacteria balance in your mouth and opens the door to fast, aggressive decay at the root of the tooth.

A ton of common prescriptions cause it. Those "non-drowsy" oral antihistamines like Claritin and Zyrtec still have an anticholinergic effect that dries you out. Plenty of blood pressure medications and sleep aids do it too. Way back in pharmacy school we learned phenytoin can cause gum overgrowth, and even though that drug isn't used much anymore, the point still stands. What you take shows up in your mouth.

 

What to Do Before Your Next Cleaning

Katie's advice was simple, and I liked that. Go back to basics instead of running out to buy one more product.

Her non-negotiables are a soft toothbrush, floss, and a water pick, and she uses them in that order: floss first, then water pick, then brush. Set a timer so you actually brush long enough, and use a brush soft enough that you could run it under your eye without it hurting. Cleaning your tongue is a free bonus on top of that.

For a rinse, skip the alcohol mouthwash. It wipes out your good bacteria right along with the bad. Warm salt water with clean water does the job just fine, and if you're here in Houston, don't rinse with tap water. If dry mouth is your issue, get rid of the toothpaste loaded with SLS and silica, sip water through the day instead of chugging it all at once, and ask me whether omega-3s and getting your hormones optimized make sense for you. You can even make your own toothpaste at home with organic cold-pressed coconut oil and baking soda.

 

Ready to Stop Guessing About Your Health?

I keep coming back to that one thing Katie said: no symptoms doesn't mean nothing's wrong. You can feel fine while something quietly builds for years.

And that's not just true for your mouth. It's true for pretty much everything going on in your body.

Most people are stuck trying to make sense of scattered advice they picked up all over the place, and nobody's helping them put it together into one picture.

That's where the Magnolia Inner Circle comes in.

It's a place where you can ask a real pharmacist real questions, get a straight answer, and start to see how your gut, your hormones, your stress, and yes, even your mouth all tie together. No more figuring it out alone.

You'll also get member challenges, deeper trainings, supplement discounts, and a community of people working toward the same thing you are.

Join the Magnolia Inner Circle here.