GLOSSARY

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Oral appliance : An oral device used to move the lower jaw forward and treat sleep apnea. By increasing the space at the bottom of the throat, it prevents breathing disorders and improves sleep quality. (direct link)

OSAS - Obstructive Sleep Apnea Syndrome : A breathing disorder characterized by partial (hypopnea) or complete (apnea) upper airway occlusions, causing the repetitive occurrence of apnea‑hypopneas (at least 10 seconds) and episodes of hypoxemia or microarousals. It is defined by the AHI. (direct link)

Oxygen : An element essential to life, constituting 21% of ambient air. Oxygen crosses the lungs to saturate the hemoglobin in the blood, which then transports it to all parts of the body. (direct link)

Oxygen concentrator : A device that concentrates the oxygen in higher concentrations than the ambient air to purify the oxygen delivered to the patient. (direct link)

Oxygen therapy : The therapeutic use of oxygen at a higher concentration than that of ambient air (21%) to treat pulmonary diseases. (direct link)

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