- Psychological Environment. For effective rehabilitation, the patient must abandon all sucking habits (thumb, pacifier, bottle). Ask parents multiple times to confirm these habits are gone.
- Anatomical Compatibility. The anatomical environment is compatible with functional rehabilitation if:
- Exclusive nasal breathing is physiologically possible : neither the size of the nasal cavities, nor any other element significantly obstructs the airflow.
- The mandible can be stabilized through occlusion.
- The size of the upper arch is sufficiently large for the tongue to rest there.
- No restrictive lingual frenulum prevent the elevation of the posterior part of the tongue.
- No device preventing tongue elevation, such as a Quad'Helix or an expander (RME). Hawley plate, aligner or braces are compatible.
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Before starting treatment, ensure two key points:
