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Understanding Bruxism: Medications and Substances That May Influence Teeth Grinding

Have you ever woken up with a sore jaw or experienced headaches that seem to come out of nowhere? You might be experiencing bruxism, a condition characterised by repetitive jaw-muscle activity, like teeth grinding or clenching. Bruxism can occur while you're asleep (sleep bruxism) or even when you're awake (awake bruxism).


Understanding Bruxism


Bruxism is more common than you might think, and it can happen at any age. When you're asleep, bruxism might look like rhythmic or non-rhythmic jaw movements. When awake, it usually involves clenching your teeth or bracing your jaw without even realising it.



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Could Your Medication Be Contributing to Bruxism?


Stress and tension are common causes, but sometimes medications might play a role in causing or worsening bruxism. Here are a few examples:


  • Anticonvulsants: Medications like barbiturates, used in children with cerebral palsy, have been linked to an increased risk of bruxism.

  • ADHD Medications: Drugs such as amphetamines and methylphenidate, commonly used to treat ADHD, are strongly associated with both sleep and awake bruxism, especially in children.

  • SSRIs (Selective Serotonin Reuptake Inhibitors): These antidepressants, including fluoxetine and sertraline, may contribute to bruxism due to their effects on brain chemicals like serotonin and dopamine.

  • Other Medications: Antipsychotics (e.g., aripiprazole), norepinephrine reuptake inhibitors (e.g., atomoxetine), and serotonin-norepinephrine reuptake inhibitors (e.g., duloxetine) have also been explored for their potential role in bruxism.


Can Certain Substances Trigger Bruxism?


It's not just medications that might affect bruxism—some addictive substances are also linked to teeth grinding:

  • Alcohol: There's moderate evidence suggesting a connection between alcohol consumption and sleep bruxism.

  • Heroin: Though not well-documented, heroin use has been associated with bruxism.

  • Methamphetamine and MDMA (Ecstasy): These substances are strongly linked to bruxism due to their neurotoxic effects.

  • Nicotine: Smoking is associated with a higher prevalence of bruxism, particularly among current and former smokers.

  • Piperazines: Recreational use of these substances can also lead to bruxism.


Medications That Might Help


On the flip side, some medications might help reduce bruxism. Here are a few worth mentioning:


  • Botulinum Toxin A: Often effective in reducing sleep and awake bruxism, though long-term safety is a consideration.

  • Buspirone: Particularly useful for managing bruxism related to SSRIs.

  • Clonazepam and Clonidine: These can reduce sleep bruxism, but there are safety concerns, especially with long-term use.

  • Gabapentin: This medication has shown promise in treating both sleep and awake bruxism, especially when it's medication-induced.


The Need for More Research


While we know a bit about how certain medications and substances might influence bruxism, there's still a lot we don't know. More research is needed to understand these relationships better and help guide doctors in treating bruxism more effectively.

If you suspect that you or a loved one might be experiencing bruxism, especially if it's related to medications or substances, it's important to consult with a healthcare professional.


Managing bruxism early is crucial in preventing further complications such as tooth damage, jaw disorders, and chronic pain. Physiotherapy plays a vital role in this process by addressing the underlying muscle tension and joint issues associated with bruxism. Techniques such as dry needling can be particularly effective in relieving muscle tightness and spasms that contribute to jaw clenching and teeth grinding. By targeting the specific muscles involved, dry needling helps to reduce pain and improve jaw function, making it a powerful tool for managing and preventing the long-term effects of bruxism.


If you have any concerns about bruxism or think it might be affecting your health, don't hesitate to reach out. You can visit us at Suite 2, 24-26 Gloucester Road, Buderim, or call us at 0735328605 to book an appointment.


By Simon

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