Do SSRIs Cause Teeth Grinding?

Certain antidepressants, particularly SSRIs and SNRIs, have been associated with bruxism (teeth grinding or clenching) in some patients. This article explains how medication-related bruxism develops, what symptoms to watch for, and how dentists coordinate care to protect teeth while supporting overall health.

What O’Fallon Patients Should Know

QUICK OVERVIEW

Bruxism (teeth grinding or clenching) commonly develops from:
– Stress or anxiety — increased muscle tension leads to clenching or grinding
– Medications — certain antidepressants and stimulants may influence serotonin and dopamine balance, affecting jaw muscle activity
– Airway issues — snoring or mild sleep apnea may activate jaw muscles during sleep as a reflex response

By Dr. Lance P. Martin, DMD
Spring Valley Dental Group – O’Fallon, IL

When a patient tells me their jaw feels tight in the morning, or they’re waking up with new headaches, one of the first questions I ask is:

“Have you started any new medications recently?”

Bruxism has many causes. Stress is common. But certain medications — especially those used to treat anxiety and depression — are documented in the dental literature as possible contributors. The connection is real, and it’s something we evaluate carefully.

Today, I’ll explain what we know, what signs to look for, and how we protect your teeth if this is happening.

What Is Bruxism?

Bruxism is repetitive jaw-muscle activity involving clenching, grinding, or bracing of the teeth. It can occur while awake or during sleep.

Mild bruxism is common. It becomes a clinical problem when the force or frequency is strong enough to:

  • Wear down enamel
  • Crack or chip teeth
  • Strain the jaw joints (TMJ)
  • Trigger headaches or facial pain

Dentists often identify bruxism by observing tooth wear patterns, muscle tenderness, or bite changes before patients realize they are grinding.

How SSRIs and Other Medications May Contribute

Many antidepressants influence neurotransmitters involved in both mood and muscle regulation.

Two primary neurotransmitters involved in medication-related bruxism are:

  • Serotonin — regulates mood
  • Dopamine — regulates movement and muscle control

Research suggests that when serotonin activity increases (as with SSRIs), dopamine regulation may be altered. That imbalance may contribute to repetitive jaw-muscle activity in susceptible individuals.
— Goodchild & Donaldson, General Dentistry, 2021

This mechanism helps explain why bruxism sometimes begins after starting or increasing certain medications.

Medications Most Commonly Associated

1. SSRIs (Selective Serotonin Reuptake Inhibitors)

  • citalopram
  • fluoxetine
  • fluvoxamine
  • paroxetine
  • sertraline

2. SNRIs (Serotonin–Norepinephrine Reuptake Inhibitors)

  • duloxetine
  • desvenlafaxine
  • levomilnacipran
  • venlafaxine
    — Goodchild & Donaldson, 2021 

3. Other Medications

  • bupropion
  • quetiapine
  • risperidone
  • ADHD stimulant medications (methylphenidate, amphetamine-class drugs)

Not everyone who takes these medications develops bruxism. When it occurs, timing often provides a clue.

When Does Medication-Related Grinding Start?

The literature reports:

  • Symptoms often begin 3–4 weeks after starting a medication
  • They may appear after a dose increase
  • In some cases, they begin after only a few doses

Patients frequently do not connect new jaw symptoms with medication changes — but dentists often recognize the pattern.

Symptoms Patients Usually Notice

If bruxism is medication-related, you may experience:

  • Jaw tightness or soreness upon waking
  • Morning headaches
  • Pain in the temples or sides of the face
  • Tooth sensitivity
  • Flattened or chipped teeth
  • Ear or jaw joint discomfort
  • Grinding sounds reported by a partner

Sometimes the grinding itself is silent. The effects are not.

What We Do at Spring Valley Dental Group

At our O’Fallon office, evaluation focuses on identifying the likely trigger and protecting the teeth early.

1. Protect the Teeth

A custom nightguard absorbs force and reduces strain on teeth and jaw joints.

2. Review Timing

If jaw symptoms begin shortly after a medication change, we consider medication-induced bruxism as part of the differential diagnosis.

3. Coordinate With Your Physician

Medication changes should never be made without medical supervision. Depending on the situation, physicians may consider:

  • Adjusting dosage
  • Switching medications
  • Changing medication class

These decisions are individualized and coordinated carefully.

4. Adjunct Options

Some case reports describe improvement with medications such as buspirone, though results vary.
Botulinum toxin (Botox) has also been studied in moderate to severe cases to reduce muscle force when medication adjustments are not possible.

These options are considered case by case.

A Note on Airway-Related Bruxism

Not all grinding is medication-related.

Snoring or mild sleep apnea can narrow the airway during sleep. The body may activate jaw muscles as a reflex to help reopen the airway. This can present as:

  • Morning jaw fatigue
  • Headaches
  • Teeth that feel sore or sensitive

If symptoms do not match stress or medication timing, airway evaluation may be appropriate.

When to Call the Office

Contact our office if:

  • You recently started or adjusted an antidepressant
  • You developed new jaw pain or headaches
  • A tooth cracked unexpectedly
  • A partner reports grinding
  • Your bite feels different

Early evaluation helps prevent permanent damage

If you’d like a broader look at bruxism itself — including common signs, stress-related grinding, and when a custom night guard makes sense — you can read our full overview here:
Is Your Daily Grind Wrecking Your Teeth? (How to Spot Bruxism and Stop It)

Final Thoughts

Mental health treatment is important. If a medication that supports your emotional health is contributing to bruxism, that does not mean you must choose between the two.

With proper evaluation and coordination, both can be managed safely.

— Dr. Lance P. Martin
Spring Valley Dental Group
O’Fallon, Illinois

We help patients throughout O’Fallon and the surrounding communities understand why grinding happens—and what it means for their teeth and jaw health. If you’re waking with jaw pain, headaches, or new tooth wear, we can take a closer look, identify the most likely cause, and guide you toward a solution that keeps your teeth protected and your symptoms under control.

Learn more about The Top 5 Medicines Every Family Should Keep at Home — A Dentist’s Perspective

Frequently Asked Questions About Teeth Grinding & Jaw Pain

A sudden change in your grinding patterns is usually a sign that something new is affecting your jaw muscles. Common triggers include stress, new medications, airway issues like snoring, or changes in your sleep patterns. Even small shifts—like a recent illness or life stress—can activate the muscles involved in nighttime grinding.

Morning jaw tightness is one of the biggest clues that you’re grinding or clenching in your sleep. Your jaw muscles may be working harder overnight, leaving you feeling sore, stiff, or “locked up” when you wake.

Grinding wears teeth down quickly. Patients often notice suddenly flatter edges, chipped corners, small fractures, or new sensitivity—even if they haven’t been chewing anything hard. These changes can appear rapidly when grinding becomes active.

Yes. Stress is one of the most common triggers for muscle tension throughout the body, including your jaw. During stressful periods, people often clench without realizing it—both during the day and in their sleep.

If the grinding began during a stressful period, stress may be the culprit. But if it started suddenly, came with morning headaches, or began after starting a new medication or experiencing airway issues (like snoring), something else may be contributing. We look at timing, symptoms, and life changes to pinpoint the cause.

Yes. Some medications—especially certain antidepressants and stimulants—can alter muscle activity and trigger grinding. If your symptoms began within a few weeks of starting or increasing a medication, it’s worth evaluating.

TMJ pain is usually felt inside the jaw joint, near the ear, and often involves clicking or popping. Grinding pain tends to be muscle-based—felt in the cheeks, temples, or jawline. Many patients experience a mix of both, which is why a proper evaluation helps clarify what’s happening.

Absolutely. Grinding activates some of the strongest muscles in your body. Overworking them during sleep can create tension headaches, ear pressure, facial soreness, or pain that spreads into the neck and shoulders.

Yes. Grinding can subtly change the way your teeth fit together by wearing certain areas faster than others. This can make your bite feel uneven, cause the jaw to shift, or create a sensation that your teeth “don’t fit” like they used to.

Schedule an appointment so we can take a closer look. Early intervention protects your teeth, eases muscle strain, and helps us determine whether stress, medications, sleep issues, or something else is causing your symptoms.

They may offer short-term protection, but they rarely fit well and can worsen the bite or jaw tension over time. A custom nightguard is safer, more comfortable, and better at absorbing the forces of grinding.


It can. Grinding can lead to fractures, enamel loss, gum recession, sensitivity, bite changes, and even tooth loss over time. Early treatment helps prevent long-term damage.

They’re related but not identical. Grinding involves side-to-side movement of the teeth. Clenching involves squeezing the teeth together with force. Many patients do both without realizing it.

Yes. While most medication-related grinding begins in the first few weeks, it can also appear later—especially after a dosage change or when medications interact differently over time.

Yes. Kids and teens can experience bruxism from stress, growth changes, airway issues, or medication effects. It’s often temporary, but noticeable wear or pain should be evaluated.

Yes. When your airway narrows during sleep—from snoring, allergies, or mild sleep apnea—your body may activate the jaw muscles as a reflex to reopen the airway. That tightening can show up as grinding or clenching, even if you’ve never had a problem before. People with airway-related bruxism often wake with jaw tension, headaches, or teeth that feel sore or sensitive. A quick evaluation can help us tell the difference between airway-related grinding and other causes like stress or medication side effects.

References

  1. Goodchild JH, Donaldson M. The intersection between stress and drug-induced bruxism. General Dentistry. March/April 2021;12–15.
  2. Lobbezoo F, Ahlberg J, Raphael KG, et al. International consensus on the assessment of bruxism: report of a work in progress. Cited in Goodchild & Donaldson (2021).
  3. Stahl SM. Mechanism of action of serotonin selective reuptake inhibitors. Discussed in Goodchild & Donaldson (2021) as foundational explanation of serotonin–dopamine interaction.
  4. Chen WH, Lu YC, Lui CC, et al. Proposed mechanism for diurnal/nocturnal bruxism involving dopaminergic pathways, summarized within Goodchild & Donaldson (2021).
  5. Ellison JM, Stanziani P. Reports of SSRI-associated nocturnal bruxism. Summarized in Goodchild & Donaldson (2021) as early clinical recognition of this side effect.
  6. Garrett AR, Hawley JS. SSRI-associated bruxism: a systematic review of published case reports. Findings reviewed in Goodchild & Donaldson (2021).
  7. Bostwick JM, Jaffee MS. Buspirone as an antidote to SSRI-induced bruxism. Case reports summarized in Goodchild & Donaldson (2021).
  8. Multiple pediatric and adult case reports demonstrating buspirone’s effect on antidepressant-induced bruxism (Akbaş & Bilgiç; Sivri & Akça; Sabuncuoğlu et al.), all cited within Goodchild & Donaldson (2021).
  9. Pharmacologic and non-pharmacologic treatment reviews for bruxism (Goldstein et al.; Guarda-Nardini et al.; De la Torre Canales et al.; Ågren et al.), all summarized within Goodchild & Donaldson (2021).




Similar Posts