Patient characteristics that influence the type of oral appliance used
| Number of teeth |
| Bruxism |
| Nasal or oral breather |
| Occlusal scheme |
| Overbite and overjet |
| Angulation of teeth |
| Periodontal health status |
| Size of mouth |
| Gag reflex |
| Mental and physical capabilities and dexterity |
| Material allergy |
| Sleep position |