**9. Treatment of adult obstructive sleep apnea syndrome**

OSAS is a life-threatening disease. Because of this reason, early, accurate, and individualized treatment should be performed by a multidisciplinary team. The aim of OSAS treatment is to decrease the number of obstructive episodes and severity and the collapse tendency and increase the airway area, blood oxygen saturation, and life quality.

**10. Oral appliance therapy**

mixed apneas [10–12, 16–21, 23–32].

**1.** Snoring patients

**2.** TMJ diseases

**3.** Periodontal diseases

**4.** Insufficient oral hygiene

**5.** Anatomical based OSAS

**11. Types of oral appliances**

**2.** Tongue retaining devices (TRDs)

**3.** Palate lifting appliances (PLA)

**1.** Mandibular advancement devices (MADs)

**4.** OPAP appliances (oral appliances + CPAP device)

**10.1. Oral appliance therapy indications**

**2.** Upper airway resistance syndrome

**10.2. Oral appliance therapy contraindications**

**1.** Central or mixed obstructive sleep apnea

**3.** Mild OSAS patients who have failed behavioral modification therapy

**4.** Moderate to severe OSAS patients who refused or failed CPAP therapy or surgery

Oral appliances can be classified into four groups according to their affect mechanisms:

Oral appliance treatment was first introduced in the 1980s and is a very effective treatment option for mild-to-moderate OSAS and seven patients with severe OSA who cannot tolerate CPAP or refuse surgical therapy. The American Sleep Disorders Association reported that oral appliance therapy is the primary treatment for patients with mild OSA and a secondary treatment option for moderate to severe OSA. For severe OSA patients, reduction in AHI score occurs, but it cannot turn into the normal range. If the AHI score cannot be decreased to 20, long-term health risks will continue. Oral appliances can be successful if only they are used after the etiological factors are eliminated. Only obstructive sleep apnea can be treated with oral devices; they are not indicated for central and

Contemporary Treatment Approaches to Obstructive Sleep Apnea Syndrome

http://dx.doi.org/10.5772/intechopen.81911

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Treatment options in OSAS are:

