S-Space College of Dentistry/School of Dentistry (치과대학/치의학대학원) Dept. of Dentistry (치의학과) Journal Papers (저널논문_치의학과)
Comparison of cortical bone thickness and root proximity at maxillary and mandibular interradicular sites for orthodontic mini-implant placement
Cited 26 time in Web of Science Cited 33 time in Scopus
- Issue Date
- Orthod Craniofac Res 2009;12:299–304
- cortical bone thickness; ; inter-arch difference ; root proximity
- Objectives – To compare maxillary and mandibular cortical bone thickness and
rootic proximity for optimal mini-implant placement.
Setting and Sample Population – CT images from 14 men and 14 women were
used to evaluate buccal interradicular cortical bone thickness and root proximity
from mesial of the central incisor to the 2nd molar. Cortical bone thickness
was measured at 0, 15, 30, and 45 angles relative to the root surface using
Results – For the cortical bone thickness, there was no statistically significant
difference between the maxilla and the mandible in the anterior area; however, there
was a significant difference in the posterior area. Cortical bone in the maxilla, mesial
and distal to canine interradicular sites, was thickest while thickness in the mandible
exhibited a gradual anterior to posterior increase. Cortical bone thickness in the
maxilla increased as both level and angle increased, while the cortical bone
thickness in the mandible was greatest at 4 mm from the alveolar crest. Root
proximity mesial and distal to 2nd premolar interradicular sites was greatest.
Conclusion – Based on our results, cortical bone thickness depends on the
interradicular site rather than sex or individual differences.
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