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Hard and soft tissue profile changes following anterior subapical osteotomy in bimaxillary dentoalveolar protrusion patients  

Han, Un-Ae (Department of Maxillofacial Surgery, Graduate School of Clinical Dental Science, The Catholic University of Korea)
Kim, Jeong-Hwan (Chungdam Ivy Dental Clinic)
Yoon, Tae-Ho (Kwangnam Jeil Dental Clinic)
Park, Je-Uk (Department of Maxillofacial Surgery, Graduate School of Clinical Dental Science, The Catholic University of Korea)
Kook, Yoon-Ah (Department of Orthodontics, Graduate School of Clinical Dental Science, The Catholic University of Korea)
Publication Information
The korean journal of orthodontics / v.33, no.6, 2003 , pp. 475-483 More about this Journal
Abstract
The purpose of this study is to evaluate hard and soft tissue changes following the subapical osteotomy in bimaxillary dentoalveolar protrusion patients requiring maximal retraction adult female patients was selected. Surgical procedures were performed by the same surgeon, anterior subapical osteotomy techniques were employed on the maxilla and cephalometric radiograms were traced and superimposed using the best-fit method and two reference The results were as follows 1. The bodily movement of the maxillary anterior segment was achieved in a posterior moved posteriorly with a slight correction of the lower incisors. 2. The horizontal soft tissue measurements changed significantly after treatment, but Nt and Sn vertical soft tissue measurements indicated that Ls moved inferiorly and Li superiorly. 3. The correlation between hard and soft tissue changes indicated that ${\Delta}HId/{\Delta}HLi,\;{\Delta}HId/{\Delta}LL-Eline,\;{\Delta}Hpt.B/{\Delta}HILS,\;and\;{\Delta}UI-FH/{\Delta}NL$ were significant. 4. More lower lip relative to upper lip retraction was demonstrated in relation to Rickett's E-line. The ratio between upper lip displacement was $50\%$, and between the lower incisor and lower lip displacement was $60\%$. We conclude from the results that the anterior subapical osteotomy is an efficient treatment severe dentoalveolar protrusion and desire rapid results.
Keywords
Anterior subapical osteotomy; Bimaxillary Protrusion; Profile change;
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