Fitting can describe several different tasks
If an offer describes only the fabrication of the device, ask how the other parts will be handled. Naming each task makes the service easier to understand and compare.
Scroll the table horizontally on smaller screens.
| Part | What is being assessed |
|---|---|
| Clinical assessment | Whether the appliance is a suitable option and which individual factors matter. |
| Fabrication and fit | How the appliance fits the teeth, mouth, and intended use. |
| Adjustment and follow-up | How its setting and function are assessed after use begins. |
Sources: AADSM updated standards, April 2025
Made for your teeth
A custom mandibular advancement appliance is made using information about your teeth and jaw relationship. It also needs to be tried in your mouth. The dentist checks that it fits as intended and can be used appropriately.
Impressions or digital scans provide information for fabrication. They do not replace the explanation of the treatment goal or the follow-up plan. Using a digital method is not, on its own, evidence of a better treatment result.
Sources: AADSM updated standards, April 2025 · AADSM patient fact sheet
Custom, moldable, and adjustable
Product descriptions may place these words close together, but they do not necessarily mean the same thing. Moldable may describe the material. Adjustable may mean that a setting can be changed. Custom made describes fabrication for an individual.
Ask whether the appliance is made for one person, exactly what is adjusted, and who checks the result. These details are more useful than a label. A device that can be shaped at home is not automatically equivalent to a prescribed custom, titratable appliance.
Fit and effectiveness need separate checks
Good fit contributes to usability, but does not automatically mean obstructive sleep apnea is adequately treated. Clinical recommendations distinguish device selection, dental follow-up, and assessment of the breathing response.
Custom fitting also does not promise that an appliance will fit unchanged forever. If you have new dental work or notice a fit problem, ask your dentist how it affects your appliance and care plan.
Sources: AADSM updated standards, April 2025 · AASM longitudinal testing guidance, 2021
What a clear explanation should include
- What examination happens before a device is selected?
- Which parts are made or adjusted specifically for me?
- How is the fit checked when I receive it?
- Which later adjustments and visits are planned?
- Who reassesses treatment if it causes problems or does not work as intended?
EXPLORE THE EVIDENCE
Sources and further reading
These sources support the explanations. General information does not replace an individual healthcare assessment.
- AADSM updated standards, April 2025 The 2025 standards for medical and dental collaboration, in-person dental assessment, appliance fitting and ongoing monitoring.Source checked October 28, 2026
- AADSM patient fact sheet Patient information about dental assessment, medical diagnosis and oral appliance care.Source checked October 28, 2026
- AASM longitudinal testing guidance, 2021 The 2021 guidance on follow-up sleep testing, including after non-PAP treatments.Source checked October 28, 2026