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   Comparative Evaluation of A Combination of Facemask-Removable Appliance and Removable Appliance Alone For Antero-Posterior Expansion in 8 - 10-Year-Old Cl Iii Children With Maxillary Deficiency  
   
نویسنده Heidarpour Majid ,Sadeghian Saeid ,Siadat Amir ,Siadat Sara ,Keimasi Maryam
منبع Iranian Journal Of Orthodontics - 2018 - دوره : 13 - شماره : 1 - صفحه:1 -9
چکیده    Objectives: the aim of this study was to evaluate and compare the effects of concomitant use of a facemask and a removable appliance and a removable appliance alone for antero-posterior expansion in cl iii children with maxillary deficiency. methods: in this retrospective analytical study, 21 cl iii children aged 8 - 10 years were selected using the census sampling technique. the subjects were divided into two groups based on the treatment modality. in group a, the subjects received an antero-posteriorexpanding removable appliance and in group b, they received the same removable appliance concomitant with a facemask. preand post-therapeutic cephalograms were analyzed and changes and angles on both images were determined. mann-whitney u and wilcoxon tests were used to compare the results of the two treatment modalities and before-after results respectively ( = 0.05). results: wits appraisal, overjet, anb, u1-sn, u1-pp and a-b difference increased in both groups after treatment (p < 0.05). in the removable appliance group, overbite, snb and inter-incisal angle decreased (p < 0.05). in the facemask group, impa decreased significantly (p < 0.05). comparison of the two treatment modalities showed that changes in sna, anb, overbite, impa, u1-sn, u1-pp and inter-incisal angle were significant between the two groups (p < 0.05). conclusions: use of a removable appliance alone or in combination with a facemask resulted in the forward movement of point a and protrusion of upper incisors. the removable appliance increased the anterior facial height and decreased overbite. a combination of facemask-removable appliance did not result in the backward and downward rotation of the mandible.
کلیدواژه Facemask ,Cl Iii ,Removable Appliance ,Maxillary Deficiency ,Y-Plate
آدرس Isfahan University Of Medical Sciences, School Of Dentistry, Torabinejad Research Center, Department Of Orthodontic Treatment, ایران, Isfahan University Of Medical Sciences, School Of Dentistry, Torabinejad Research Center, Department Of Orthodontic Treatment, ایران, University Of Isfahan, School Of Dentistry, Dental Student’S Research Center, ایران, Islamic Azad University, Isfahan Branch, School Of Dentistry, Department Of Orthodontics, ایران, University Of Isfahan, School Of Dentistry, Dental Student’S Research Center, ایران
 
 

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