KYT Dental Services
Bupropion · Teeth grinding

Bupropion and teeth grinding

Quick answer

Unlike SSRIs and stimulants, bupropion is rarely associated with teeth grinding. In fact, bupropion is sometimes added to an SSRI specifically to reduce SSRI-induced bruxism. If you started bupropion and noticed new grinding, the cause may be something else (stress, sleep apnea, a different medication). If you are switching from an SSRI to bupropion, you may notice grinding improve over time.

The mechanism
Why bupropion is different from other antidepressants for grinding

Most psychiatric medications associated with bruxism affect serotonin (SSRIs) or dopamine and norepinephrine in a way that overstimulates jaw motor pathways (stimulants like Adderall and Vyvanse). Bupropion increases dopamine and norepinephrine, but the pattern is different: it does not increase serotonin, and the activation profile does not produce the same jaw muscle overactivity.

There is published evidence that adding bupropion to an SSRI can reduce SSRI-induced grinding in some patients. The proposed mechanism is that the dopamine effect of bupropion counterbalances the serotonin pathways that drive SSRI bruxism. This is not first-line management for grinding, but it is occasionally relevant when a patient needs both medications.

Bupropion is not entirely free of bruxism reports. A small minority of patients describe new grinding after starting it. In most cases, this is mild and resolves with time, or has another contributing cause (stress, sleep disruption, caffeine intake) that responds to direct management.

Practical steps
What to do if you notice grinding on bupropion
  • Track when the grinding started in relation to the medication. If it began before bupropion, the medication may not be the cause.
  • Look at other contributors: caffeine intake, stress, sleep quality, and other medications. Bupropion can affect sleep, which can affect grinding indirectly.
  • Get a custom night guard if there is any evidence of wear or jaw soreness. The guard protects regardless of the underlying cause.
  • Tell your prescribing physician. A dose adjustment or change in timing sometimes helps, especially if bupropion is affecting your sleep.
  • If you also take an SSRI, mention that to your dentist. The grinding pattern in dual-medication patients sometimes improves once bupropion has been on board for a few months.
  • Mention the medications at every dental visit so the exam focus reflects what is on board.
Red flags
When to call your dentist
  • Morning jaw soreness that is now routine.
  • Headaches in the temples on waking.
  • A new chip or sharp edge on a tooth.
  • Teeth that look shorter or flatter than they were before.
  • Jaw clicking, popping, or locking that started recently.
Common questions
What patients ask about Bupropion and teeth grinding and jaw clenching.
Is bupropion a common cause of teeth grinding?
No. Of all the psychiatric medications, bupropion has one of the lowest associations with bruxism. SSRIs and stimulants are far more common drivers. If you started bupropion and developed grinding, the cause is more likely something else, though the medication can occasionally contribute.
Can switching to bupropion stop the grinding I had on an SSRI?
Often yes. Many patients see grinding improve after switching off an SSRI, including switches to bupropion. The effect typically appears over several weeks. Talk to your prescribing physician if grinding from an SSRI is severe enough to consider switching.
Why would a dentist suggest bupropion for grinding?
A dentist would not prescribe it; that is a medical decision. But dentists familiar with SSRI-induced bruxism sometimes note bupropion as a potential add-on or substitute, in coordination with the prescribing physician, when grinding is severe and other measures (night guard, hygiene, stress management) have not been enough.
Can bupropion affect the jaw without causing grinding?
Some patients report jaw tension or clenching during the day, especially in the first few weeks. This is usually mild and resolves with time. A dose adjustment or moving the second dose earlier sometimes helps.
Should I stop bupropion if it is making me grind?
Not without talking to your prescribing physician. If grinding is clearly linked in time to bupropion, a dose change is a reasonable first step. A night guard handles the dental damage in the meantime regardless of what is causing the grinding.
Talk to a dentist about your case
Bring your medication list to your visit.

General guidance is a starting point. Your specific dental plan depends on your medical history, your other medications, and what your mouth looks like in person. Schedule a consultation and we’ll walk through it.

Schedule a consultationCall (833) 598-3368

Reviewed by Dr. Isaac Sun, DDS.

This page is general information, not medical advice. Do not start, stop, or change any medication based on what you read here. Talk to your prescribing physician and your dentist about your specific situation.