Three-Dimensional Study of Digital Customized Invisible Mandibular Advancement Device in the Treatment of Airway Changes in Children with Skeletal Class Ⅱ Malocclusion
Objective:To investigate the three-dimensional changes of the upper airway in children with skeletal class Ⅱ after treatment with digital customized invisible mandibular advancement device,MAD.Methods:Children with skeletal class Ⅱ were treated with invisible MA appliances.CBCT was taken before and after treatment,and three-dimensional reconstruction measurements were performed using Dolphin11.5 software.Paired t-tests were used to compare the three-dimensional changes of the upper airway in children with skeletal class Ⅱ before and after treatment with invisible MA appliances.Results:The total volume,oropharyngeal volume,soft palate tip level(SP),epiglottic tip level(TE),and minimum cross-sectional area of the upper airway in patients significantly increased(P<0.05).Conclusion:Digital customized invisible appliances can be used to treat children with skeletal class Ⅱ,by leading the mandible forward,expanding the upper airway,and improving respiratory function.
skeletal class Ⅱupper airwayinvisible mandibular advancement devicecone beam computed tomography
万方数据
维普
