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

Kwon, SY | Ahn, HW | Kim, SH | Park, YG | Chung, KR  | Paik, CH | Nelson, G
Head & face medicine, 10. : 22-22, 2014
Journal Title
Head & face medicine
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 hyperdivergent

class II malocclusion were treated with the KILBON system and temporary skeletal

anchorage devices (TSADs) on the palate. The first patient was treated with

conventional KILBON system on the upper arch and detailed with lingual

appliances. The second patient showed the modified design of the KILBON when

applied to a low palatal vault. RESULTS: A large amount of intrusion and

retraction of the anterior teeth and simultaneous intrusion of the posterior

segment were achieved in short treatment time. Concomitant counterclockwise

rotation of the mandible improved the esthetic profile. Periodontal support

without dehiscence or bone loss was confirmed on anterior region in spite of

large amount of retraction. CONCLUSIONS: This report presented a lingual

retraction system that provides simple and effective vertical and sagittal

control of both anterior and posterior teeth. The biomechanics are dependable for

correcting a dentoalveolar protrusion in a patient with Class II hyperdivergent

skeletal pattern.

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Journal Papers > School of Medicine / Graduate School of Medicine > Dentistry
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