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2005•Heilongjiang Medical JournalRequires access

Study of Treatment of Class II Malocclusion with Twin-block Appliances

Gong Xin

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Abstract

Objective To study the effects of Treatment of Class Ⅱ malocclusion with Twin-block Appliances.Methods 12 cases of Class Ⅱ Division Ⅰ malocclusion with mandibular retrusion in the mixed dentition or early permanent dentition were treated with Twin-block Appliances,and the effects were evaluated with Cephalometric analysis before and after treatment.Results After using Twin-block Appliances,almost all patients' molars were rejected into centric occlusion,Normal overjet and overbite obtained,soft tissue appearance and profile were improved greatly.Conclusion Twin-block Appliances were efficient for treating early Class Ⅱ Division Ⅰ malocclusion with mandibular retrusion.

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What this paper is about

Objective To study the effects of Treatment of Class Ⅱ malocclusion with Twin-block Appliances.Methods 12 cases of Class Ⅱ Division Ⅰ malocclusion with mandibular retrusion in the mixed dentition or early permanent dentition were treated with Twin-block Appliances,and the effects were evaluated with Cephalometric analysis before and after treatment.Results After using Twin-block Appliances,almost all patients' molars were rejected into centric occlusion,Normal overjet and overbite obtained,soft tissue appearance and profile were improved greatly.Conclusion Twin-block Appliances were efficient for treating early Class Ⅱ Division Ⅰ malocclusion with mandibular retrusion.

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Available abstract

Objective To study the effects of Treatment of Class Ⅱ malocclusion with Twin-block Appliances.Methods 12 cases of Class Ⅱ Division Ⅰ malocclusion with mandibular retrusion in the mixed dentition or early permanent dentition were treated with Twin-block Appliances,and the effects were evaluated with Cephalometric analysis before and after treatment.Results After using Twin-block Appliances,almost all patients' molars were rejected into centric occlusion,Normal overjet and overbite obtained,soft tissue appearance and profile were improved greatly.Conclusion Twin-block Appliances were efficient for treating early Class Ⅱ Division Ⅰ malocclusion with mandibular retrusion.

Key concepts: Medicine, Overjet, Malocclusion, Overbite, Orthodontics, Dentistry, Occlusion, Permanent dentition

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