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ID 116714
Title Alternative
歯科矯正用アンカースクリューおよび周囲骨の応力分布に及ぼす埋入深さの影響 : 有限要素法による解析
Author
Hirai, Yuzo Tokushima University|Kobe City Nishi-Kobe Medical Center
Deguchi, Toru The Ohio State University
Ueda, Kanji Digital Solution Inc.
Keywords
Finite element analysis
Orthodontic miniscrew
Insertion depth
Insertion angle
Content Type
Thesis or Dissertation
Description
We aimed to elucidate stress distribution in miniscrews and the surrounding bone when miniscrews inserted at different depths were implanted vertically or obliquely. The distributions of the equivalent stress on the screw surface and the minimum principal stress in the surrounding bone were calculated using finite element models. When the miniscrews were inserted vertically and obliquely, screw head displacement, greatest equivalent stress on the miniscrew surface, and absolute value of minimum principal stresses in the surrounding bone decreased with increasing insertion depth. Stresses in the obliquely inserted miniscrew with upward traction were smaller than in other insertion conditions, irrespective of insertion depth. With the application of orthodontic force, stress distribution around the miniscrew and surrounding bone is closely related to the insertion depth and insertion angle, which mutually affect each other. In particular, the obliquely inserted miniscrew with upward traction might be the most secure against screw failure and fracture.
Journal Title
Dental Materials Journal
ISSN
18811361
02874547
NCID
AA10443149
Publisher
The Japanese Society for Dental Materials and Devices
Volume
40
Issue
5
Start Page
1270
End Page
1276
Published Date
2021-09-25
Remark
内容要旨・審査要旨・論文本文の公開
本論文は, 著者Hiroko Satoの学位論文として提出され, 学位審査・授与の対象となっている。
Rights
© 2021 The Japanese Society for Dental Materials and Devices
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
ETD
MEXT report number
甲第3567号
Diploma Number
甲口第475号
Granted Date
2022-01-13
Degree Name
Doctor of Dental Science
Grantor
Tokushima University
departments
Oral Sciences