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Search: authors:"Hyo-Won Ahn"

4 papers found.
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Control of anterior segment using an antero-posterior lingual sliding retraction system: a preliminary cone-beam CT study

Background This study was performed to evaluate the treatment effects of the antero-posterior lingual retractor (APLR), focusing on the 3-dimensional (3D) tooth movement of the maxillary anterior teeth and their alveolar bone levels. Methods En masse retraction was performed using either the C-lingual retractor (CLR, C-group, n = 9) or the antero-posterior lingual retractor (APLR...

Application of the 2-piece orthodontic C-implant for provisional restoration with laser welded customized coping: a case report

This article presents the application of laser welding technique to fabricate an orthodontic mini-implant provisional restoration in missing area after limited orthodontic treatment. A 15-year-old boy case is presented. Two-piece orthodontic C-implant was placed after regaining space for missing right mandibular central incisor. Due to angular deviation of implant, customized...

Antero-posterior lingual sliding retraction system for orthodontic correction of hyperdivergent Class II protrusion

Background This report introduces a lingual bonded retraction system (Kinematics of Lingual Bar on Non-Paralleling Technique, KILBON) for efficient sliding mechanics combined with vertical control of the anterior and posterior teeth, which is suitable for Class II hyperdivergent patients. Methods Design and biomechanics of the KILBON System were described. Two adults with...

MicroRNA transcriptome in the newborn mouse ovaries determined by massive parallel sequencing

Small non-coding RNAs, such as microRNAs (miRNAs), are involved in diverse biological processes including organ development and tissue differentiation. Global disruption of miRNA biogenesis in Dicer knockout mice disrupts early embryogenesis and primordial germ cell formation. However, the role of miRNAs in early folliculogenesis is poorly understood. In order to identify a full...