Oropharyngeal Airway Three-dimensional Changes after Treatment with Myobrace in Class II Retrognathic Children

مجله بهداشت ايران

دوره 46 - شماره 2

Article Type: Letter to editor
Abstract: Several scholars pointed out the relationship be-tween the function of muscle and teeth (1). The effects of breathing on facial growth and occlu-sion of the bite have been identified in various papers (2, 3). A breathing disorder occurs after upper airway blockage during sleep, it has not only nighttime symptoms such as snoring or ap-nea but also daytime symptoms such as behavior-al disorder, excessive daytime sleepiness, concen-tration issue, memory, and cognitive function. Sleep is a physiological phenomenon essential for performing basic human functions and is impor-tant for normal growth and development, and for maintaining emotional health and immunity. Among various sleep disorders, Obstructive Sleep Apnea Syndrome (OSAS) is a common medical problem for children (4). Among the sleep disorders, obstructive sleep apnea has been reported in Korean children and adolescents based on polysomnography, relative to other sleep disorders. Sleep-disordered breathing can be prevented myofunctional therapy, the neuro-muscular toning and re-education of oral, facial, and pharyngeal muscles (lips, tongue, cheeks, face, and throat) through a series of activities which helps normalize the developing or devel-oped, head and neck structures and function, with orthodontic treatment (5,6). A recent re-search literature review shows myofunctional therapy for those whose tongues block their air-way during sleep can reduce these choking events by approximately 50% in adults and 62% in children and those lowest blood oxygen satura-tions, snoring, and sleepiness outcomes improve in adults (7).We now have the evidence-based studies to vali-date the success of treating patients collaborative-ly with a variety of disorders (e.g., orthodontic disorders, sleep apnea, orofacial pain) but, until recently, there were not enough studies using oral appliance and myofunctional therapy of Korean children and adolescents. Since cephalometric radiography was introduced by Broadbent to eva-luate the craniofacial morphology, as recently re-ported (8), to evaluate the size of the airways and tongue in patients with sleep apnea, it is widely used, but, not be evaluated in three dimensions.
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