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  • Are you a patient who falls asleep in the dental chair while your hygienist is scaling? Have you ever had your dental hygienist ask how you sleep? Or do you snore? It’s not just small talk. Dental hygienist are playing more and more of important role in the recognition of sleep disorders.

    What Is Sleep Apnea Syndrome? 

    Sleep apnea syndrome (SAS) is a sleeping disorder marked by repetitive episodes of cessation of breathing, 10 seconds or longer, during sleep. During this time, the individual’s oxygen level drops, resulting in hypoxemia and sleep disruption. SAS was clinically recognized more than 30 years ago, but the health implications of this syndrome were barely known outside of the medical field. However, as more cases were uncovered, attention turned to the impact of SAS on the general health of individuals, such as the increased risk of cardiovascular disease, along with its oral implications such as periodontitis.

    Sleep apnea occurs in all age groups, both sexes, among all body types, and ethnicities. However, SAS is mostly seen in overweight, middle-aged men, women (especially postmenopausal women), and infants.

    The most common symptoms of SAS are:

    • Fragmented sleep pattern and restless sleep, insomnia, excessive daytime sleepiness, and loud snoring
    • Xerostomia (dryness of the mouth from breathing through the mouth and lack of secretion )
    • Cognitive and behavior issues such as the inability to pay attention and intellectual performance deterioration, irritability depression, and morning headaches among others

    Certain oral anatomical traits, such as the shape of the palate, enlargement of the lateral pharyngeal walls, and mandible and facial profile, can contribute to this disorder. Life style behaviors such as high use of alcohol, sedatives, or tranquilizers are also risk factors. Additionally, a person who smokes has three times the risk of developing SAS as a nonsmoker.

    Dental hygienist’s role in treating patients with SAS

    Sleep apnea is a chronic condition that requires long-term management (lifestyle changes, mouthpieces, surgery, and/or breathing devices), and a multidisciplinary approach.

    Dental personnel have become more involved in SAS during the last 10 years, particularly since it was shown that some patients with SAS could be helped with oral appliances that are currently used to control snoring. Treatment of SAS with an oral appliance requires a multidisciplinary approach involving a sleep physician and a dental practitioner with expertise in the management of sleep disorders.

    Sleep apnea often goes undiagnosed. In addition, most people who have sleep apnea do not know they have it because it occurs only during sleep. Many patients visit their dentists more often than they visit their doctors. Therefore, dental hygienists play a critical role in screening their patients for sleep breathing disorders and in the care of patients with SAS.

    Some dental concerns of patients with SAS are xerostomia, bruxism, temporomandibular joint (TMJ) disorders, tooth hypersensitivity, and periodontitis, which is due to poor circulation.

    Recommendations should be made to the patient with xerostomia. Salivary substitutes should be prescribed in addition to informing the patient on the possible increase of caries due to a decrease in salivary flow. The dentist should properly evaluate TMJ problems, and appropriate referrals should be made. Keep in mind that patients have reported tooth sensitivity after wearing an oral appliance for the treatment of SAS. Therefore, desensitizing agents should be placed during dental hygiene treatment and recommendations should be made as to which OTC desensitizing products can be used at home by the patient.

    Recall dental hygiene appointments should be kept at three to four month intervals to arrest the progression of periodontal disease, if present. The dental hygiene treatment plan must be designed with the patient’s mental status in mind. The lack of sleep or poor sleep may result in depression and lack of motivation in general. Therefore, afternoon appointments are best due to the fact that the patient will be groggy and disoriented in the morning. The use of mouth props is advisable if the patient begins to feel drowsy during treatment.

    Snoring is an important sign that a serious medical problem may exist. Dental hygienists can play an important role in the recognition of sleep disorders by adding questions to the standard dental history. Questions such as: Do you snore? Can you breathe through your nose? Do you wake up tired in the morning? Do you become extremely tired or fall asleep during the day?

    Similarly, dental hygienists should do a thorough extra- and intraoral examination that includes examination of the pharyngeal airway space, the hypopharyngeal airway space (via the chin press/tongue curl maneuver), the size of the tongue, tonsils, and adenoids, the position of the mandible, the vault of the palate, and the nasal airway. In addition, a doctor may diagnose obstructive sleep apnea through a sleep history and a sleep study, or nocturnal polysomnography.

    Treatment of SAS requires a multidisciplinary approach. Dental hygienists should work closely with other health care professionals, including a sleep physician and a dental practitioner with expertise in the management of sleep disorders.

    For the full article visit: http://www.rdhmag.com/articles/print/volume-31/issue-10/features/sleep-apnea-syndrome.html

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