2010•Unpublished venueRequires access

Study on effects of early treatment with lip bumper on class II division I malocclusion

Tian Cun-me

Abstract

Objective To study the effects of treatment with the lip bumper on class Ⅱ division Ⅰ malocclusion patient in late mixed dentition.Methods Twenty-six subjects with class Ⅱ division Ⅰ malocclusion in late mixed dentition were selected,they were treated with lip bumper,analysis of cephalometric and model measurments were done before and after treatment.Results After treatment,SNA increased by 1.14°,,the length of mandible increased by 4.37mm,and the over jet was decreased by 3.4mm.Conclusion The lip bumper had the evident orthopedic effects on class Ⅱ division Ⅰ malocclusion

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Key concepts: Malocclusion, Orthodontics, Medicine, Dentistry, Mandible (arthropod mouthpart), Orthopedic surgery, Dentition, Division (mathematics)