| Esthetic impact of premolar extraction and nonextraction treatments on Korean borderline patients. | |
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MedLine Citation:
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PMID: 18405816 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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INTRODUCTION: The esthetic impact of the soft-tissue profile might play a major role in deciding on premolar extraction or nonextraction treatment, particularly in borderline patients. The purpose of this study was to compare the esthetic impact of extraction and nonextraction therapy on Korean patients. METHODS: Panels of 50 dentists and 50 laypersons evaluated randomly presented pretreatment and posttreatment soft-tissue profiles of 50 extraction and 50 nonextraction patients. As subjects in this study, borderline patients were selected based on their initial diagnostic records. Two panels were asked to compare the pretreatment and posttreatment profile tracings and to quantify their perceptions of the esthetic impact of treatment change using a visual analog scale. RESULTS: Premolar extraction patients showed greater improvement in facial profile compared with nonextraction patients, regardless of the panel. Based on the results of regression analysis to determine the degree of lip protrusion at which the retraction that commonly follows premolar extraction would be needed, the intersection was about 3.0 mm behind the Ricketts' E-line; this is far behind the Korean norm. CONCLUSIONS: The results indicate that premolar extraction is more beneficial than nonextraction treatment in terms of facial profile improvement in Korean borderline patients. |
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Authors:
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Hoi-Jeong Lim; Kwang-Taek Ko; Hyeon-Shik Hwang |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics Volume: 133 ISSN: 1097-6752 ISO Abbreviation: Am J Orthod Dentofacial Orthop Publication Date: 2008 Apr |
Date Detail:
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Created Date: 2008-04-14 Completed Date: 2008-04-28 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8610224 Medline TA: Am J Orthod Dentofacial Orthop Country: United States |
Other Details:
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Languages: eng Pagination: 524-31 Citation Subset: D; IM |
Affiliation:
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Department of Orthodontics, 2nd Stage of Brain Korea 21, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Analysis of Variance Asian Continental Ancestry Group Bicuspid / surgery Child Dentists / psychology Esthetics, Dental* Face / anatomy & histology* Female Humans Korea Linear Models Lip / anatomy & histology Male Malocclusion / therapy* Orthodontics, Corrective / methods* Public Opinion Tooth Extraction* Treatment Outcome |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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