Frequently Asked Questions (FAQs) About Mandibular Devices
A mandibular device, also known as a mandibular advancement device (MAD), is an oral appliance prescribed by a dentist, and designed to treat sleep apnea and snoring by repositioning the lower jaw slightly forward to keep the airway open during sleep.
The device pushes the lower jaw forward, preventing the collapse of soft tissues at the back of the throat, which can block the airway and cause snoring or sleep apnea.
Mandibular devices are typically recommended for patients with mild to moderate obstructive sleep apnea or those who cannot tolerate CPAP therapy. A sleep specialist or dentist can determine if you’re a candidate.
Most users find the device comfortable[1] after an initial adjustment period. Some patients undergoing treatment with MADs can encounter early side effects, including dental discomfort, dry mouth, excessive salivation, and gum irritation[2]. However, these side effects are typically temporary, ranging from mild to moderate in severity, and rarely lead to discontinuation of MAD use[3].
A dentist specializing in sleep medicine takes impressions of your teeth to create a custom-fitted device tailored to your mouth and jaw structure.
It depends on your dental health. Consult your dentist to evaluate whether a mandibular device is suitable for your dental condition.
Many patients notice improvements in snoring and sleep quality quickly[4]. Long-term results for sleep apnea vary based on individual anatomy and adherence to use.
Possible side effects include temporary jaw discomfort, tooth movement, or changes in salivation. These are usually mild and can often be managed with adjustments by your dentist.
After each night: rinse with lukewarm water (max 45°C) and clean with a soft toothbrush (no toothpaste or alcohol-based products). Then dry it thoroughly.
Twice a week: use a antibacterial denture cleaner for deeper hygiene.
Yes, the device is compact and portable, making them convenient to take with you.
With proper care, most Narval CC devices should last about 3 years. Regular dental check-ups are recommended to assess wear and ensure it remains effective.
No, product adjustments can only be performed by a dental practitioner. Do not hesitate to reach out to your dental practitioner if needed.
Yes, mandibular devices are effective for reducing or eliminating snoring[5] caused by airway obstruction, even in the absence of sleep apnea.
If the device no longer provides relief, consult your dentist or sleep specialist. They may adjust the fit, replace worn components, or suggest alternative treatments.
[1] Vecchierini MF, Attali V, Collet JM, et al. Mandibular advancement device use in obstructive sleep apnea: ORCADES study 5-year follow-up data. J Clin Sleep Med. 2021;17(8):1695-1705. doi:10.5664/jcsm.9308. *A 5-year prospective observational multicentre cohort study on 331 OSA patients. 5-year follow-up data analysis. Clinical Trials.gov identifier: NCT01326143.
[2] Martins ODFM, Chaves Junior CM, Rossi RRP, Cunali PA, Dal-Fabbro C, Bittencourt L. Side effects of mandibular advancement splints for the treatment of snoring and obstructive sleep apnea: a systematic review. Dental Press J Orthod. 2018 Aug;23(4):45–54.
[3] Attali V, Chaumereuil C, Arnulf I, Golmard JL, Tordjman F, Morin L, et al. Predictors of long-term effectiveness to mandibular repositioning device treatment in obstructive sleep apnea patients after 1000 days. Sleep Medicine. 2016 Nov;27–28:107–14.
[4] Vecchierini MF et al. A custom-made mandibular advancement device for obstructive sleep apnoea-hypopnoea syndrome: the ORCADES study. Sleep Medicine 2016 Mar; 19:131-40. *A 5-year prospective observational multicentre cohort study on 331 OSA patients. 3-6 months follow-up data analysis. Clinical Trials.gov identifier: NCT01326143.
[5] Vecchierini MF et al. A custom-made mandibular advancement device for obstructive sleep apnoea-hypopnoea syndrome: the ORCADES study. Sleep Medicine 2016 Mar; 19:131-40. *A 5-year prospective observational multicentre cohort study on 331 OSA patients. 3-6 months follow-up data analysis. Clinical Trials.gov identifier: NCT01326143.