Effects of modified fixed reverse Twin-block appliance on soft tissue in treatment of adult Angle Ⅲ anterior crossbite

VernacularTitle:改良固定反式双阻板矫治器矫治成人前牙反(牙合)对颅面软组织的影响
Author: Hong LIU ; Yinong QIU ; Jianxue LI
Publication Type:Journal Article
Keywords: Twin-block appliance(TBA); Edgewise; Angle Ⅲ malocclusion; Skeletal anteri-or crossbite; Soft tissue
From: Chinese Journal of Medical Aesthetics and Cosmetology 2009;15(1):34-37
CountryChina
Language:Chinese
Abstract: Objective To evaluate the curative effects of the modified fixed reverse Twin-block ap-pliance (TBA)combined Edgewise in the treatment of adult Angle Ⅲ anterior crossbite. Methods The appliance was used in 18 subjects with adult Angle Ⅲ skeletal malocclusion and clinical characters and X-ray cephalometry were then compared before and after treatment. Results The mandibular soft tissue changes could be achieved fast and the profile had changed effectively. Moderate labioclination of maxil-lary anterior teeth played a role in the improvement of axillary soft tissue protrusion. The cases were fol-lowed up as long as 3 years. No relapse occurred in all the patients. Anterior occlusion was normal. Con-clusion All findings indicate that adult Angle Ⅲ anterior crossbite can be quickly corrected with the mod-ified fixed reverse TBA combined Edgewise. The effect on mandibular soft tissue is significant.