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Bone density at interradicular sites: Implications for orthodontic mini-implant placement

Title
Bone density at interradicular sites: Implications for orthodontic mini-implant placement
Authors
Chun Y.S.Lim W.H.
Ewha Authors
전윤식
SCOPUS Author ID
전윤식scopus
Issue Date
2009
Journal Title
Orthodontics and Craniofacial Research
ISSN
1601-6335JCR Link
Citation
vol. 12, no. 1, pp. 25 - 32
Indexed
SCIE; SCOPUS WOS scopus
Abstract
Objectives - Implant stability is primarily related to local bone density; Few studies have evaluated interradicular bone density related to mini-implant placement for orthodontic anchorage. Therefore, this study evaluated bone density differences between interradicular sites. Setting and Sample Population - Computed tomographic (CT) images were obtained from 14 males and 14 females (mean age 27 years, range 23-35 years). Bone density in Hounsfield units (HU) was measured at 13 interradicular sites and four bone levels. Results - Bone densities in most areas were higher than 850 HU. Statistically significant differences in bone density were detected at different levels and sites. Bone densities in both maxilla and mandible significantly increased from the alveolar crest toward basal bone in posterior areas, while the opposite was observed in anterior areas. There were statistically significant differences in bone densities between the maxilla and mandible in posterior areas. Bone densities progressively increased from anterior to posterior areas in the mandible. Conclusion - The results suggest that mini-implants for orthodontic anchorage may be effective when placed in most areas with equivalent bone density up to 6 mm apical to the alveolar crest. Site selection should be adjusted according to bone density assessment. Copyright © 2009 The Authors.
DOI
10.1111/j.1601-6343.2008.01434.x
Appears in Collections:
의학전문대학원 > 의학과 > Journal papers
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