Dental Sleep Appliances

Sleep Appliances

Confidently treat snoring and sleep apnea with clinically proven Sleep Appliances!

Narval™ CC

  Narval™ CC - The First MRD of Its Kind

Brought to you by Great Lakes Orthodontics in partnership with ResMed

Narval™ CC is the first and only CAD/CAM custom-made mandibular
repositioning device (MRD) on the market. Narval CC is the ultimate MRD
solution for patients with mild to moderate obstructive sleep apnea (OSA),
as well as those who are unable to comply with continuous positive airway
pressure (CPAP) treatment. It is also a first line treatment for snoring in the
absence of OSA.

Unique CAD/CAM technology ensures a precise fit
and comfortable retention.

•  Computer-aided design (CAD) enables a high degree of customization to
   suit the complex dental anatomy of individual patients

•  Computer-aided manufacturing (CAM) through selective laser sintering
   guarantees a consistently accurate MRD

•  Made of highly resilient and durable biocompatible polymer material;
   Narval CC is metal-free, flexible, and lightweight.

•  Easy to titrate; highly adjustable (15mm protrusive range-1mm increments)

•  Easy to reorder with CAD/CAM reproduction

Narval™ CC - Technology (2:45)


Narval™ CC - Dental Protocol (4:05)

Note:  Narval CC can only be sold by Great Lakes to doctors in the United States.
*Photos ©ResMed 2012. Used with permission.


Narval CC Rx

MPowRx™ Snoring and Sleep Apnea Appliance


This unique non-custom device treats chronic snoring and sleep apnea by
repositioning the tongue forward instead of relying on the mandible. Uses
gentle suction, rather than the alveolar ridge or dentition to stay in place.
Allows patient to swallow comfortably. No impression needed. This appliance
is not autoclavable.


•  Clinically proven
•  Easy insertion
•  Comfortable, secure fit
•  Maintains shape
•  One size fits most
•  Convenient and effective

Ideal For These Patient Types:

•  Edentulous
•  Periodontal problems
•  TMJ indicated
•  Large tongue
•  Complicated dentition
•  Children
•  Combination therapy with CPAP

Indications for use:

•  Short, clinical crowns
•  Crowded anteriors, upper and lower
•  Maxillary tori and/or mandibular tori
•  Perio patient mobility
•  Nickel sensitivity and/or methyl-methacrylate allergy

FDA Reference #KO81965


MPowRx Flier

Apnea Guard® Combo Kit


The Apnea Guard prefabricated oral appliance is a mandibular repositioning device intended to reduce or alleviate snoring and mild to moderate obstructive sleep apnea. Predicts the patient's therapeutic position and produces outcomes equivalent to a custom appliance. Takes the guesswork out of oral appliance therapy. Ideal for immediate placement, the Apnea Guard Kit accommodates a full range of arch widths with three vertical sizes; Low-5.5mm, Medium-6.5mm, and High-8mm. Advances the mandible in 1mm increments for up to 29 nights.


•  Precursor to Herbst®* Sleep & other appliances
•  Ideal for immediate placement
•  Settings can be precisely transferred to a custom device
•  Advances at 1mm increments across full range of protrusion settings
•  Uses PVS heavy-body impression material common to most dental offices*
•  Produces outcomes equivalent to a custom device
   *Recommended Use:  PVS putty, shore 70.

Indications for use:

•  Reduce or alleviate snoring 
•  Mild to moderate obstructive sleep apnea
•  For patients 18 years and older
•  Fitted with assistance from a healthcare professional
•  Used during sleep for up to 29 nights


FDA Reference # K062951


Apnea Guard Combo Kit Flier

Klearway® Appliance


Backed by extensive research, this appliance offers ultimate control. Adjusts in increments of 0.25mm for gradual jaw positioning, featuring a snap lock expansion screw that prevents unwanted deactivation. Fabricated of comfortable, thermoactive acrylic, the Klearway® is easy to insert, conforms securely to teeth and permits lateral movement. Provides full occlusal coverage of both arches. Does not encroach on tongue space. This appliance is suitable for most patients including those who brux, have missing or complicated dentitions, some upper edentulous cases, extensive bridgework and/or short clinical crowns.

Indications for use:

•  Full complement of teeth
•  Extensive crown and bridge
•  Severe bruxism or no bruxism
•  At least 8-10 teeth per arch (if maxillary arch endentulous, 8-10 on lower)
•  Short clinical crowns
•  Malocclusions/Crowded anteriors upper and lower
•  Longer tooth dentitions
•  Wide upper arch
•  Bi-extractions 

FDA Reference #K950763

Klearway Booklet

Snoring/Sleep Apnea Rx

Herbst®* Sleep Appliance


The Herbst® Appliance has been proven effective for chronic snoring and mild to moderate obstructive sleep apnea sufferers. This appliance allows patients some lateral and vertical movement without disengaging the appliance. Also, if the initial position does not provide anticipated relief, the mandible can easily be moved forward in small increments by using advancement shims, or with our telescopic hardware advanced up to 5mm with a 1mm retrusion.

This appliance can be made of hard acrylic, thermoactive resin (Variflex™), or soft EVA material.

Indications for use - Herbst®:

•  Optimum tongue space
•  Upper edentulous with at least 6 teeth on lower arch
•  Full complement of teeth
•  Gaggers
•  Midline deviations
•  Minimal inter-incisal opening
•  Maxillary tori
•  Mandibular tori

Indications for use - Variflex Telescopic Herbst®:
Same as Herbst indications above, and the following -

•  Extensive crown and bridge
•  Short clinical crowns
•  Malocclusions
•  Longer tooth dentitions

The Soft Telescopic Sleep Herbst®** Appliance is fabricated using low profile, reinforced EVA material, offering superior patient comfort and retention. Proven effective for chronic snoring and mild to moderate obstructive sleep apnea. This appliance allows patients some lateral and vertical movement without disengaging the hardware. 

•  A threaded telescopic mechanism allows controlled 1/8 to 1/4 mm
    incremental advancements up to 5 mm with a 1 mm retrusion.
•  Not recommended for bruxers or clenchers.

Color options:  White (standard), Green, Red, Blue & Black.

     Great Lakes is pleased to announce that all Telescopic Herbst Sleep Appliances
     are PDAC (Pricing, Data Analysis and Coding Contractor) approved for Medicare 
The Code is E0486

FDA Reference #K955822

*Herbst is a registered trademark of Dentaurum, Inc.

**Patent Pending

Advancement Hardware

Herbst Sleep Appliance Brochure

Snoring/Sleep Apnea Rx

NAPA Appliance


In clinical use since 1983, this proven treatment was developed by Dr. Peter T. George. The NAPA uses eight clasps and is constructed of hard acrylic to provide excellent retention. Comfortable to wear, the NAPA fits very much like a standard orthodontic appliance. An available option is the thermal active material Variflex™ (clasping optional). This variation will be trimmed scalloped to the gingival margin and is ideal for patients with sensitive teeth, crowns, bridgework or missing dentitions. Both versions of the NAPA appliance are available with the standard breathing beak or beakless option.

Indications for use:

•  Non-bruxer
•  Wide upper arch
•  Gaggers
•  Minimal inter-incisal opening
•  Full complement of teeth
•  Maxillary tori

FDA Reference #K902790

Snoring/Sleep Apnea Rx

Elastomeric Appliance


Made of soft custom-injected silicone, this appliance offers optimum patient comfort and compliance. No clasps or wires to adjust. Proven effective by the University of Kentucky Medical Center Sleep Apnea Laboratory Recommended for partial edentulous patients and non-bruxers.

Indications for use:

•  Full complement of teeth
•  Crowded anteriors, upper and lower
•  If maxillary arch is edentulous, 8-10 teeth on lower
•  Maxillary tori

Note: if there is a need for further advancement or retrusion, a new appliance must be fabricated at that time.

FDA Reference #K946112

Snoring/Sleep Apnea Rx

AM Aligner


The AM Aligner exercises the patient’s mandible comfortably back into normal occlusion. Can be used in partnership with any sleep appliance on the market. Heat-softening material easily conforms to dentition and conveniently softens in a therm bath at 160°.


Note: It is recommended that the AM Aligner be adapted at the same time the initial records are being captured to help the patient find their normal bite position after wearing a sleep appliance.


Great Lakes appliances cannot be ordered by the general public and require a prescription. Please feel free to contact laboratory customer service for a referring provider in your area, or for additional assistance. Please be advised that Great Lakes Laboratory cannot guarantee appliance results when retention is compromised.


Phone: 800.828.7626 (U.S. & Canada) or 716.871.1161 (Worldwide)


Monday - Friday 8:00a.m. to 5:00p.m. (EST)
Email: [email protected]