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KMID : 0352120180330010005
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Journal of Kyung Hee University
2018 Volume.33 No. 1 p.5 ~ p.13
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Anterior Segmental Osteotomy: Root Resorption is Less?
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Ohe Joo-Young
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Abstract
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Patients undergoing orthodontic treatment are more likely to have apical root shortening. Many literatures showed the etiologic factors were complex and multifactorial. It appears that external apical root resorption results from a combination of patient-related risk factors such as previous history of root resorption, genetic influences and systemic factors and orthodontic treatment-related factors like treatment duration, magnitude of applied force, direction of tooth movement, amount of apical displacement, method of force application, type of appliance, treatment technique and so on. We could encounter the patients having the short teeth root and the poor periosteum in a case that much maxillary setback be needed, such as bimaxillary protrusion or skeletal class II. The anterior segmental osteotomy (ASO) has been known that this could complement the possibility of external apical root resorption and buffer the periodontal problems, so it could be the choice of treatment. But the studies about the efficacy of ASO in aspects of preserving the root are deficient. So in this study, we compared the amount of root resorption after orthodontic procedure between patients group who had been taken a conventional orthodontic and patients group in whom ASO had been included in orthodontic treatment procedure.
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KEYWORD
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Anterior segmental osteotomy, Root resorp-tion
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