alexa Changes in upper airway width associated with Class II treatments (headgear vs activator) and different growth patterns.
Medicine

Medicine

Otolaryngology: Open Access

Author(s): Godt A, Koos B, Hagen H, Gz G

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Abstract OBJECTIVE: To investigate the upper airways for anteroposterior width against different growth patterns and for alterations during various Class II treatments. MATERIALS AND METHODS: Cephalograms from three treatment groups (headgear, activator, and bite-jumping appliance) were evaluated by a single investigator at baseline and at the end of orthodontic treatment. Cephalograms were used to determine upper airway width at different levels in the anteroposterior plane. Patients in the headgear group were additionally divided into six subsets on the basis of y-axis values to assess the influence of different growth patterns. RESULTS: Small increases in pharyngeal width were noted at all vertical level segments, both at baseline and during orthodontic treatments. No significant differences in these small increases were noted across various treatment modalities and growth patterns. CONCLUSION: Upper airway changes did not significantly vary with the different treatment modalities investigated in the present study. Nevertheless, reductions in pharyngeal width potentially triggering or exacerbating obstructive sleep apnea syndrome (OSAS) are always possible in the headgear phase. This article was published in Angle Orthod and referenced in Otolaryngology: Open Access

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