Why Your Dentist Needs to Know About Your Cannabis Use

Ever wondered if your dentist can tell when you've been using marijuana? According to Dr. Ellyce Clonan, a clinical assistant professor at the University at Buffalo School of Dental Medicine, the signs are pretty obvious €”the telltale red eyes, dry mouth, and yes, even the smell.

Some patients are upfront about it, explaining they needed to calm their dental anxiety. While dentists appreciate patients showing up for their appointments, there's growing research about how regular marijuana use affects oral health that you should know about.

The Numbers Might Surprise You

Recent studies have uncovered some concerning links between cannabis use and dental problems:

• A 55% higher risk of developing cavities
• A 41% increased chance of tooth loss
• Three times the risk of developing mouth cancers

That last one often catches people off guard. We typically associate oral and lung cancers with tobacco, but a July study examining California hospital records found something striking: people with cannabis use disorder (defined as daily use that's difficult to stop) were more than three times as likely to develop lip and tongue cancers within five years.

What's Actually Happening in Your Mouth?

Dr. Raphael Cuomo, who led that California study, explains that THC €”the compound that produces the high €”may actually suppress immune responses in the tissues of your mouth and nose when exposed to smoke.

But there's more to the story. Just like tobacco smoke, marijuana smoke contains harmful volatile compounds. In fact, some of the levels are surprisingly high:

• Ammonia levels are twenty times higher in marijuana smoke compared to tobacco
• Higher concentrations of hydrogen cyanide (a toxic chemical)
• Potentially carcinogenic organic compounds called aromatic amines

As Dr. Clonan puts it simply: "You're putting fire directly in your mouth." While researchers are still working to understand the full picture (including what edibles might do), inhaling any burning material isn't great for your mouth or lungs.

The Anesthesia Issue You Should Know About

Here's something many people don't realize: marijuana can significantly affect how your body responds to dental anesthesia. Research shows that regular users often need more anesthesia and experience increased pain and complications after dental procedures.

Cannabis can raise your blood pressure and heart rate, which becomes a concern when dentists use local anesthetics containing epinephrine (adrenaline). This combination is used to reduce bleeding and extend numbness, but for someone whose heart rate and blood pressure are already elevated from cannabis use, it adds an extra layer of risk.

"Cannabis has been shown to increase people's anxiety," Dr. Clonan notes. "So if someone's already panicky in the chair with elevated blood pressure and heart rate, that creates additional concerns."

Dr. Austin Le, a New York City orthodontist and NYU researcher, is cautious about administering anesthesia to anyone who isn't fully sober or who uses drugs heavily. "You're worried about drug interactions or the body responding in a very bad way, causing an emergency in the chair," he explains.

The Everyday Habits That Add Up

Beyond the smoke itself, marijuana use can lead to behaviors that harm your teeth. Sound familiar?

The munchies effect: Those late-night snacks tend to be carb- and sugar-heavy, which increases cavity risk significantly.

Reduced motivation: Cannabis can make people more lethargic, meaning they're less likely to maintain regular brushing and flossing habits.

Dry mouth: When your mouth gets really dry, your saliva can't do its job properly. Saliva is crucial €”it washes away plaque and food particles, prevents plaque buildup, and helps prevent cavities. A dry mouth is much more vulnerable to dental problems.

What Dentists Want You to Know

Despite these documented concerns, most people have no idea that using marijuana before a dental appointment could be problematic. Even many dental professionals are still figuring out the best approach.

Dr. Clonan now encourages dentists to add questions about marijuana use to their standard medical intake forms. But here's the most important thing to understand: they're not asking to judge you.

"We want you to tell us if you use so you can be safe when you visit us," Dr. Clonan emphasizes. "We're asking out of kindness and understanding, not passing judgment."

If you do use marijuana regularly, dentists recommend some extra precautions:

• Brush twice daily (consistently!)
• Drink more water to combat dry mouth
• Visit the dentist every six months
• Minimize snacking between meals
• Limit sugar intake

The bottom line? Being honest with your dentist about cannabis use isn't about getting in trouble €”it's about making sure you get the safest, most effective care possible. Your mouth will thank you for it.