Treatment of Class Ⅱ malocclusion using Herbst appliance with headgear and rapid palatal expansion and straight wire appliance with implant anchorage

Abstract

Abstract: PURPOSE: To investigate the effects of early treatment of Class Ⅱ malocclusion with Herbst appliance with headgear and rapid palatal expansion and straight wire appliance with implant anchorage. METHODS: Twenty-five Chinese children (14 males, 11 females, aged from 10-12 years with an average age of 10.5 years) were treated with Herbst appliance with headgear and rapid palatal expansion for 6 months. Then they were further treated with straight wire appliance with implant anchorage. Cephalometric data pre- and post-treatment were measured and analysed. Multiple correlation analysis was performed with SPSS13.0 software package. RESULTS: Compared with pretreatment, ∠SNB(4.2800±1.4000)° and ∠NP-FH (3.5600±1.0440)° increased posttreatment. ∠SNA (0.5600±0.8206)°, ∠ANB (4.7600±1.2000)°, ∠U1-NA(11.9200±1.4411)° and ∠U1-SN(13.1600±1.7720)° decreased posttreatment（P<0.05）. CONCLUSIONS: Maxillary growth is successfully inhibited and mandibular growth is significantly promoted by Herbst appliance with headgear and rapid palatal expansion. The maxillary dentition is significantly retracted by fixed appliance with implant anchorage and the skeletal pattern of patients is significantly improved.

Key words: Herbst appliance, Headgear, Rapid palatal expansion, Implant anchorage

CLC Number:

R783.5

ZHANG Xiao-jie,ZHENG Cang-shang,ZHANG-Min. Treatment of Class Ⅱ malocclusion using Herbst appliance with headgear and rapid palatal expansion and straight wire appliance with implant anchorage[J]. Shanghai Journal of Stomatology, 2015, 24(3): 361-366.

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