Table I.
Patients’ demographics and baseline data
| Patient | Age | Gender | Ethnicity | BMI | NC | Diagnosis | AHI | Mean Lowest Oxygen Saturation | Incisor relationship | Sagittal Skeletal Pattern | Vertical Skeletal Pattern |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 32 | Male | Chinese | Normal | Normal | Primary snorer | NA | NA | Class I | Class I | Normodivergent |
| 2 | 33 | Male | Chinese | Normal | Normal | Primary snorer | NA | NA | Class I | Class I | Normodivergent |
| 3 | 38 | Female | Chinese | Normal | Normal | Mild OSA | 11.2 | 89% | Class I | Class II | Normodivergent |
Figure 1.
Virtual model with bite scanned at 50% of the maximum mandibular protrusive excursion and 5 mm interincisal vertical opening.
Figure 2.
Marking of the extension of the plate on casts and its designated view.
Figure 3.
Addition of bilateral bars from canines to second molars.
Figure 4.
A, Final virtual MAA design; B, View of the virtual MAA with supports on the model-building platform.
Figure 5.
A, 3D-printed MAA right lateral view; B, 3D-printed MAA frontal view; C, 3D-printed MAA left lateral view.
Figure 6.
A, Patient’s right lateral occlusal view; B, Patient’s frontal occlusal view; C, Patient’s left lateral occlusal view.
Figure 7.
A, Marking of the extension; B, Virtual appliance following the marking.
Figure 8.
A, Bars addition; B, Virtual MAA design; C, 3D-printed MAA; D, Intraoral photographs of the MAA.
Figure 9.
A, Extension of the bars to the lateral incisors; B, Virtual MAA design; C, View of the virtual MAA with supports on model-building platform.
Figure 10.
A, The 3D-printed MAA; B, Patient wearing the 3D-printed MAA.
Table II.
Sleep parameters for patient 3
| Date | AHI | Apnoea | Hypopnoeas | Sleep Architecture | Respiratory Event | Arousal | Snore Index | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TST (min) | SE (%) | S1 (%) | S2 (%) | S3 (%) | REM (%) | Mean Lowest Oxygen Sat. | Oxygen Desat. | |||||||
| Before MAA | Feb 2023 | 11.20 | 5 | 57 | 332.5 | 87.5 | 23.2 | 53.4 | 1.2 | 9.3 | 89% | 5 | 5 | 2+ |
| With MAA | Nov 2023 | 4.62 | 0 | 26 | 338.0 | 89.5 | 10.0 | 44.0 | 26.0 | 20.0 | 94% | 0 | 2 (all associated with hypopnoeas) | 1 |