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Stress distributions in peri-miniscrew areas from cylindrical and tapered miniscrews inserted at different angles

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dc.contributor.author이기준-
dc.contributor.author최성환-
dc.contributor.author황충주-
dc.date.accessioned2017-10-26T07:09:29Z-
dc.date.available2017-10-26T07:09:29Z-
dc.date.issued2016-
dc.identifier.issn2234-7518-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/151676-
dc.description.abstractOBJECTIVE: The purpose of this study was to analyze stress distributions in the roots, periodontal ligaments (PDLs), and bones around cylindrical and tapered miniscrews inserted at different angles using a finite element analysis. METHODS: We created a three-dimensional (3D) maxilla model of a dentition with extracted first premolars and used 2 types of miniscrews (tapered and cylindrical) with 1.45-mm diameters and 8-mm lengths. The miniscrews were inserted at 30°, 60°, and 90° angles with respect to the bone surface. A simulated horizontal orthodontic force of 2 N was applied to the miniscrew heads. Then, the stress distributions, magnitudes during miniscrew placement, and force applications were analyzed with a 3D finite element analysis. RESULTS: Stresses were primarily absorbed by cortical bone. Moreover, very little stress was transmitted to the roots, PDLs, and cancellous bone. During cylindrical miniscrew insertion, the maximum von Mises stress increased as insertion angle decreased. Tapered miniscrews exhibited greater maximum von Mises stress than cylindrical miniscrews. During force application, maximum von Mises stresses increased in both groups as insertion angles decreased. CONCLUSIONS: For both cylindrical and tapered miniscrew designs, placement as perpendicular to the bone surface as possible is recommended to reduce stress in the surrounding bone.-
dc.description.statementOfResponsibilityopen-
dc.formatapplication/pdf-
dc.languageKorean, English-
dc.publisher대한치과교정학회-
dc.relation.isPartOfKOREAN JOURNAL OF ORTHODONTICS-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/2.0/kr/-
dc.titleStress distributions in peri-miniscrew areas from cylindrical and tapered miniscrews inserted at different angles-
dc.typeArticle-
dc.publisher.locationKorea-
dc.contributor.collegeCollege of Dentistry-
dc.contributor.departmentDept. of Orthodontics-
dc.contributor.googleauthorSung-Hwan Choi-
dc.contributor.googleauthorSeong-Jin Kim-
dc.contributor.googleauthorKee-Joon Lee-
dc.contributor.googleauthorSang-Jin Sung-
dc.contributor.googleauthorYoun-Sic Chun-
dc.contributor.googleauthorChung-Ju Hwang-
dc.identifier.doi10.4041/kjod.2016.46.4.189-
dc.contributor.localIdA04083-
dc.contributor.localIdA04492-
dc.contributor.localIdA02698-
dc.relation.journalcodeJ02087-
dc.identifier.eissn2005-372X-
dc.identifier.pmid27478796-
dc.subject.keywordFinite element analysis-
dc.subject.keywordMiniscrew design-
dc.subject.keywordOrthodontic miniscrews-
dc.subject.keywordStress-
dc.contributor.alternativeNameLee, Kee Joon-
dc.contributor.alternativeNameChoi, Sung Hwan-
dc.contributor.alternativeNameHwang, Chung Ju-
dc.contributor.affiliatedAuthorChoi, Sung Hwan-
dc.contributor.affiliatedAuthorHwang, Chung Ju-
dc.contributor.affiliatedAuthorLee, Kee Joon-
dc.citation.volume46-
dc.citation.number4-
dc.citation.startPage189-
dc.citation.endPage198-
dc.identifier.bibliographicCitationKOREAN JOURNAL OF ORTHODONTICS, Vol.46(4) : 189-198, 2016-
dc.date.modified2017-10-24-
dc.identifier.rimsid45690-
dc.type.rimsART-
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers

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