Frequently Asked Questions

View answers to some of the most frequently asked questions about Cerezen™ ear canal inserts below.

Contact us and we can assist you in locating a Cerezen™ ear canal inserts prescriber near you.

  • Cerezen™ inserts are comprised of customized ear canal inserts that reduce pain associated with temporomandibular joint disorder (TMJD)
  • The inserts conform to the shape of the ear canal when the jaw is in an open position
  • Cerezen™ ear canal inserts have central hollow passageways so there is no interference with hearing

Once a temporomandibular joint disorder (TMJD) diagnosis has been established, the prescribing health care provider can take the manual ear impressions, or refer you to a participating Impression Provider.

Cerezen™ Device in ear diagram There are two primary factors believed to be responsible for the clinically proven effectiveness of Cerezen™ inserts:

  1. The ear canal inserts support the temporomandibular joint and associated secondary musculature to reduce strain in the TMJ area, and
  2. they provide "cognitive awareness" (consciously or subconsciously) to the wearer regarding para-functional habits (e.g., jaw clenching) that contribute to TMJ pain, relieving strain in the TMJ area. Both mechanisms function because of the proximity of the temporomandibular joint, and the ear inserts maintain the shape and volume of the ear canal as the jaw opens and closes. As can be seen in the figure to the right, the ear canal (external auditory meatus) is located immediately posterior to the condyle and disc of the TMJ.

Patient global satisfaction in the pivotal clinical trial was extremely high, with 100% of subjects in the Cerezen™ inserts group indicating excellent (71%) or good (29%) overall satisfaction with their devices for TMJ pain relief. For more information on patient response, please view our patient testimonials.

Tavera A, et al: Approaching Temporomandibular Disorders From a New Direction.
A Randomized Controlled Clinical Trial of the TMDes* Ear System.
J Craniomandibular Practice July 2012; Vol 30, No 3, 172-182. *TMDes is now called Cerezen™ inserts.

No significant complications have been reported. This is not unexpected, because the Cerezen™ inserts are custom-fit to each patient’s ear canal. The ear inserts are constructed from medical-grade polymers and plastics that have been safely used in commercially available hearing aids for decades. The clinical trial of Cerezen™ ear canal inserts did include evaluation of patients for a range of potential complications. There were no unanticipated adverse effects or serious adverse events reported during the pivotal clinical trial. No study patients were found to have ear drainage, allergic reactions, swelling or changes to the mouth, ear or jaw at any of the follow-up visits. There were no reports of diminished hearing acuity in patients treated with the Cerezen™ inserts.

Tavera A, et al: Approaching Temporomandibular Disorders From a New Direction.
A Randomized Controlled Clinical Trial of the TMDes* Ear System.
J Craniomandibular Practice July 2012; Vol 30, No 3, 172-182. *TMDes is now called Cerezen™ inserts.

No. Each set of inserts is custom fit and manufactured for each patient's ear canals.

Cerezen™ Left and Right DeviceYes. The right ear insert is marked with a red dot, while the left insert is marked with a blue dot.

To receive the most effective TMJD treatment it is recommended that the patient wear both inserts simultaneously.

It is not recommended to wear your inserts while showering, bathing, swimming or participating in contact sports. Please refer to the Cerezen™ Precautions page for a complete list of warnings and precautions.

Yes, they can be worn up to 24 hours per day. However, if you experience any discomfort, you should remove the inserts.

Cerezen™ inserts are not currently covered by insurance; however, interest-free financing may be available through CareCreditsm. Information about CareCreditsm can be accessed through this link .


For help locating a prescriber, contact us online or call us at 1-855-303-4601.