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The effect of cortical activation on orthodontic tooth movement

Authors
 K-W Cho  ;  S-W Cho  ;  H-S Jung  ;  H Ohshima  ;  Y-K Ryu  ;  C-O Oh 
Citation
 Oral Diseases, Vol.13(3) : 314-319, 2007 
Journal Title
 Oral Diseases 
ISSN
 1354-523X 
Issue Date
2007
Abstract
OBJECTIVE: Cortical activation is one of the procedures to accelerate tooth movement by manipulating the cortical bone. In this study, the effect of cortical activation on orthodontic tooth movement was investigated clinically and histologically in the surrounding bony tissue. MATERIALS AND METHODS: In the lower and upper jaws of two beagle dogs, cortical activation was applied to the buccal and lingual side of the alveolar bone in the right jaw where 12 holes were made on each cortical plate 4 weeks after the extraction of all the second bicuspids while under deep anesthesia. All third bicuspids on both jaws were forced to move forward by a 150-g force using NiTi coil spring with/without guiding wire. The tooth movement was measured and the animals were killed after tooth movement. RESULTS: Rapid initial tooth movement was apparent after cortical activation. However, after 6 months of cortical activation, the cell number and cellular activity of the surrounding periodontal tissue were decreased. CONCLUSIONS: This experiment showed that rapid initial tooth movement was apparent following the application of orthodontic force after cortical activation but the cellular activity and fibroblast structure were abnormal in the surrounding periodontal tissue.
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/97247
Full Text
http://onlinelibrary.wiley.com/doi/10.1111/j.1601-0825.2006.01286.x/abstract
DOI
10.1111/j.1601-0825.2006.01286.x
Appears in Collections:
1. Journal Papers (연구논문) > 2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실)
1. Journal Papers (연구논문) > 2. College of Dentistry (치과대학) > Others (기타)
1. Journal Papers (연구논문) > 2. College of Dentistry (치과대학) > Dept. of Oral Biology (구강생물학교실)
Yonsei Authors
오창옥(Oh, C. O.)
유영규(Ryu, Y. K.)
정한성(Jung, Han Sung)
조경원(Cho, Kyoung Won)
조성원(Cho, Sung Won) ORCID logo https://orcid.org/0000-0001-7505-9769
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