Biofeedback for bruxism

What is biofeedback?

Biofeedback is a method where a signal (the feedback) provides us with awareness of a biological activity or behavior, in order to control these activities

The feedback signal alerts us when the target activity or behavior is detected (for example, teeth grinding). That way we become aware and can make behavioral adjustment to alleviate the issue.

Through consistent use, the constant feedback loop eventually generates a learned response that persists even after the feedback signal is discontinued

Is biofeedback safe?

Yes. Biofeedback has been used clinically for decades to address or prevent conditions, such as migraine headaches, chronic pain, incontinence, epilepsy, and high blood pressure1.

Some studies showed  biofeedback reduces the duration and frequency of teeth grinding during sleep, without affecting one’s sleep quality2-7.

Will it disrupt my sleep?

No. Most teeth grinding episodes occur during light sleep (microarousal phase in Stage 1/2 Non-REM sleep)15. This means you are already in a state of brief awakening and less likely to be jarred awake, since you are not in a deep sleep.

Previous studies showed that sleep duration, sleep quality, and sleep architecture weren’t affected by the stimuli during biofeedback2-7 so we expect similar result from Jawsaver. In our usability test, user reports similar sleep quality before and after using Jawsaver.

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Smart wearable for sleep bruxism

Jawsaver leverages the latest advances in artificial intelligence and sleep wearable. It’s the most intelligent habit training device to battle your night-time grinding habit.


Smart & Accurate

Our algorithm has been developed using thousands of hours of data to accurately detect audible grinding episodes.

It is highly specific and will not be triggered by other noises such as snoring, talking, door creaking, ceiling fans, television sounds, etc.

It also learns your grinding habit and uses the biofeedback loop to help you break the habit.

Targeting the Sound

Audible teeth grinding represents extreme jaw-grinding movements that have harmful consequences to teeth enamel & integrity, not to mention disruptive to others sleeping next to you.

Previous study has shown that bruxers with audible teeth grinding tend to be more severe grinders with significant tooth wear compared to non-audible grinders.12


Optimized Biofeedback

Jawsaver’s biofeedback mechanism has been calibrated to provide an optimal vibrotactile stimulus (the perception of a vibration through touch) that is sufficient to be registered by the sleeping brain, without being too disruptive that it wakes you up.

The vibration is silent & short, so it won’t be heard or noticed by your bed partner.


Training, not Treatment

Think of biofeedback as a training tool. During sleep, we are not aware when we’re grinding our teeth, even though the forces exerted on the teeth can be up to 10 times stronger than when we’re chewing our food14.

This breakdown in the feedback loop is what Jawsaver is trying to correct, and is more likely to work through consistent use.


Am I a good fit?

Jawsaver is most suitable for loud bruxers who find their mouth guards uncomfortable to sleep in.

Find out if Jawsaver is right for you.

[1] Yucha C, Montgomery D. Evidence‐Based Practice in Biofeedback and Neurofeedback. Wheat Ridge: Association for Applied Psychophysiology and Biofeedback, 2008.

[2] Bergmann A, Edelhoff D, Schubert O, Erdelt KJ, Pho Duc JM. Effect of treatment with a full-occlusion biofeedback splint on sleep bruxism and TMD pain: a randomized controlled clinical trial. Clin Oral Investig. 2020 Nov;24(11):4005-4018.

[3] Nakamura H, Takaba M, Abe Y, Yoshizawa S, Suganuma T, Yoshida Y, Nakazato Y, Ono Y, Clark GT, Baba K. Effects of a contingent vibratory stimulus delivered by an intra-oral device on sleep bruxism: a pilot study. Sleep Breath. 2019 Mar;23(1):363-372.

[4] Gu W, Yang J, Zhang F, Yin X, Wei X, Wang C. Efficacy of biofeedback therapy via a mini wireless device on sleep bruxism contrasted with occlusal splint: a pilot study. J Biomed Res. 2015 Apr;29(2):160-8.

[5] Sato M, Iizuka T, Watanabe A, Iwase N, Otsuka H, Terada N, Fujisawa M. Electromyogram biofeedback training for daytime clenching and its effect on sleep bruxism. J Oral Rehabil. 2015 Feb;42(2):83-9.

[6] Jadidi F, Castrillon EE, Nielsen P, Baad-Hansen L, Svensson P. Effect of contingent electrical stimulation on jaw muscle activity during sleep: a pilot study with a randomized controlled trial design. Acta Odontol Scand. 2013 Sep;71(5):1050-62.

[7] Sumiya M, Mizumori T, Kobayashi Y, Inano S, Yatani H. Suppression of sleep bruxism: effect of electrical stimulation of the masseter muscle triggered by heart rate elevation. Int J Prosthodont. 2014 Jan-Feb;27(1):80-6.

[8] Solberg WK, Rugh JD. The use of bio-feedback devices in the treatment of bruxism. J South Calif Dent Assoc. 1972 Sep;40(9):852-3. PMID: 4538306.

[9] Lavigne GJ, Rompré PH, Poirier G, Huard H, Kato T, Montplaisir JY. Rhythmic masticatory muscle activity during sleep in humans. J Dent Res. 2001 Feb;80(2):443-8.

[10] Raphael KG, Sirois DA, Janal MN, Wigren PE, Dubrovsky B, Nemelivsky LV, Klausner JJ, Krieger AC, Lavigne GJ. Sleep bruxism and myofascial temporomandibular disorders: a laboratory-based polysomnographic investigation. J Am Dent Assoc. 2012 Nov;143(11):1223-31.

[11] Manfredini D, Lombardo L, Visentin A, Arreghini A, Siciliani G. Correlation Between Sleep-Time Masseter Muscle Activity and Tooth Wear: An Electromyographic Study. J Oral Facial Pain Headache. 2019 Spring;33(2):199-204.

[12] Yoshida Y, Suganuma T, Takaba M, Ono Y, Abe Y, Yoshizawa S, Sakai T, Yoshizawa A, Nakamura H, Kawana F, Baba K. Association between patterns of jaw motor activity during sleep and clinical signs and symptoms of sleep bruxism. J Sleep Res. 2017 Aug;26(4):415-421.

[13] Miettinen T, Myllymaa K, Muraja-Murro A, Westeren-Punnonen S, Hukkanen T, Töyräs J, Lappalainen R, Mervaala E, Sipilä K, Myllymaa S. Polysomnographic scoring of sleep bruxism events is accurate even in the absence of video recording but unreliable with EMG-only setups. Sleep Breath. 2020 Sep;24(3):893-904.

[14] Nissani M. A bibliographical survey of bruxism with special emphasis on non-traditional treatment modalities. J Oral Sci. 2001 Jun;43(2):73-83.

[15]Huynh N, Kato T, Rompré PH, Okura K, Saber M, Lanfranchi PA, Montplaisir JY, Lavigne GJ. Sleep bruxism is associated to micro-arousals and an increase in cardiac sympathetic activity. J Sleep Res. 2006 Sep;15(3):339-46.

[16] Macedo CR, Silva AB, Machado MA, Saconato H, Prado GF. Occlusal splints for treating sleep bruxism (tooth grinding). Cochrane Database Syst Rev. 2007 Oct 17;(4):CD005514.

[17] van der Zaag J, Lobbezoo F, Wicks DJ, Visscher CM, Hamburger HL, Naeije M. Controlled assessment of the efficacy of occlusal stabilization splints on sleep bruxism. J Orofac Pain. 2005 Spring;19(2):151-8.