What Is Airway Orthodontics?
"Airway orthodontics" is a popular phrase. It usually refers to orthodontic or dentofacial orthopedic treatment, such as palate expanders or jaw-guiding appliances, that a provider says may widen the airway or improve breathing. It is not a formal specialty or a single standard treatment, and different offices use the term differently.
This page is about the evidence. It explains what orthodontics can and cannot do for obstructive sleep apnea (OSA), how children and adults differ, which marketing claims deserve caution, and what to ask before you start. It does not endorse any brand or system.
Orthodontics and dentofacial orthopedics is an ADA-recognized dental specialty. Dental sleep medicine is not.[10] If a provider calls themselves an "airway specialist," ask what that means, because it is not a recognized dental specialty title.
What the AAO White Paper Says
In 2019, the AAO published a white paper on OSA and orthodontics. The board of trustees had asked a panel of medical and dental experts in sleep medicine and dental sleep medicine to guide orthodontists on the role of the specialty in managing OSA.[1] The key points are below.
- OSA can only be definitively diagnosed by a physician. The orthodontist may screen, help identify dentofacial factors, and assist the physician, and cannot manage OSA alone.[1]
- Orthodontists are strongly encouraged to screen patients for OSA risk factors and to refer at-risk patients to a physician, with a sleep medicine physician preferred.[1]
- No orthodontic treatments have been shown to cause or increase the likelihood of OSA. Some forms of orthodontic treatment have been shown to be important in treating it.[1]
- In the growing child, there is no indication in the literature that prophylactic maxillary expansion prevents the future development of OSA, and no clear indication that mandibular repositioning appliances do either.[1]
- The authors describe a "substantial leap of faith" when researchers move from "enlarged airway" to "OSA cure" or even "OSA improvement," and call for sleep studies to measure outcomes.[1]
- Extractions and tongue-tie release are not supported as ways to prevent OSA. Studies did not find that extractions cause OSA.[1]
Children vs. Adults: What Expansion Can and Cannot Do
The biggest source of confusion is that the evidence in children and the evidence in adults are very different.
In Children
Palate expanders are used mostly in children. A 2017 meta-analysis of 17 studies (314 children with narrow palates and OSA) found that AHI dropped about 70% on average within three years. But the cure rate (AHI below 1 event per hour) was about 26% in the 90 children for whom it could be calculated, and improvement varied with tonsil size.[3]
A 2023 meta-analysis rated the evidence low to very low, noted that the data came mainly from uncontrolled studies, and concluded that these treatments cannot be suggested as elective OSA treatment. It said an orthodontic indication is needed and that careful monitoring is required.[4] A 2016 meta-analysis reached a cautious conclusion too, given the small number of studies.[5]
Medical guidelines still put enlarged tonsils and adenoids first. The American Academy of Pediatrics recommends adenotonsillectomy as first-line treatment when they are the cause, and in 2012 found the data insufficient to recommend rapid maxillary expansion for OSA.[8][9] See our page on sleep apnea in children for more.
In Adults
In adults, expansion usually involves surgery or specialized devices. The AAO paper says significantly less data exist for surgically assisted rapid maxillary expansion, and that mini-implant supported expansion has very limited PSG evidence for OSA. It says future studies are needed.[1] A 2024 review of the orthodontist's role called the adult evidence equivocal and short term, and put the emphasis on sleep physician-led care.[6]
Adults with OSA have better-proven options. CPAP (positive airway pressure) is generally considered the gold standard.[7] Custom oral appliances are recommended for adults who cannot tolerate CPAP or prefer another option.[2] Surgery, including maxillomandibular advancement, may help some patients whose CPAP and oral appliance therapy have not worked.[1][7] See our pages on dental appliances for sleep apnea and oral surgery for sleep apnea.
Where an Orthodontist Does Help
None of this means orthodontists have no role. The AAO paper describes several real ones.
- Screening at regular visits and referring at-risk patients to a physician.[1][7]
- Correcting a true narrow upper jaw or a bite problem in a growing child, with any airway change as a possible secondary benefit.[1]
- Monitoring an oral appliance for OSA and managing side effects. The paper describes typical changes such as reduced overjet and overbite with long-term oral appliance wear.[1]
- Preparing patients for jaw surgery when there is an orthodontic reason for it.[1]
Marketing Claims to Be Careful About
Airway-focused marketing can be persuasive, especially to anxious parents and to adults who dislike CPAP. Use the evidence above to test what you read or hear. Be cautious if you see any of the following.
- "Cures" or "eliminates" sleep apnea without any sleep study before or after. The AAO paper warns against jumping from an enlarged airway to an OSA cure.[1]
- Claims that expansion or early braces will prevent sleep apnea in children. The AAO paper found no indication that prophylactic treatment does.[1]
- Claims that extractions cause sleep apnea, or that tongue-tie release prevents it. The AAO paper does not support either as a basis for OSA prevention.[1]
- Before-and-after photos or airway scans presented as proof. An image of a wider airway is not the same as fewer breathing pauses during sleep.[1]
- Adult expansion sold as a replacement for CPAP or an oral appliance, without a sleep study. The evidence for adults is far thinner.[1][6]
- A provider who dismisses the need for a physician. Diagnosis by a physician is the standard.[1][7]
- Titles such as "airway specialist" or "sleep specialist" for a dentist. Dental sleep medicine is not an ADA-recognized specialty.[10]
Questions to Ask Before Starting
A good provider will welcome these questions and answer them plainly.
- Has a physician diagnosed OSA, and did I have a sleep study? If not, will you refer me for one first?
- Is this treatment for a jaw or bite problem that you can show me, or only for my airway?
- What outcome is expected, and how will we measure it? Will I have a repeat sleep study?
- What does the evidence say for someone of my age? What are the odds it will not work?
- What are the side effects, the total cost, and the time in treatment? (Costs vary by location and case.)
- What training do you have in sleep-disordered breathing, and how do you coordinate with my physician?
- If it does not work, what are the next steps?
How to Find a Dentist Who Provides Oral Appliance Therapy
If you have sleep apnea, start with a physician and a sleep study. If your physician recommends an oral appliance, look for a dentist who provides oral appliance therapy and has training in dental sleep medicine. If you or your child also need orthodontic treatment for a jaw or bite problem, look for an orthodontist who will coordinate with your physician.
You can search the MSD provider directory and browse our orthodontics page. When you call, ask each office directly about its screening, its referral process, and its approach to sleep apnea. For a fuller look at the treatments, read our guide to orthodontic treatment for sleep apnea. Browse our list of dentists who provide oral appliance therapy, grouped by state.
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