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Prediction of mandibular movement and its center of rotation for nonsurgical correction of anterior open bite via maxillary molar intrusion

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dc.contributor.author박영철-
dc.contributor.author정희규-
dc.contributor.author최윤정-
dc.date.accessioned2019-01-15T16:51:55Z-
dc.date.available2019-01-15T16:51:55Z-
dc.date.issued2018-
dc.identifier.issn0003-3219-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/166688-
dc.description.abstractOBJECTIVES: To evaluate quantitatively the relationship between molar intrusion (change [Δ] maxillary first molar [U6]-palatal plane [PP]) and changes in vertical and sagittal cephalometric parameters and to determine the center of mandibular autorotation. MATERIALS AND METHODS: Twenty-one patients diagnosed with anterior open bite and successfully treated with molar intrusion (overbite [OB] > 0 mm) were retrospectively enrolled. Lateral cephalograms taken before and after molar intrusion were used to measure changes in vertical and sagittal cephalometric parameters. The center of mandibular autorotation was calculated by measuring displacement of gonion (Go) and pogonion (Pog). Paired t-tests were used to compare variables, and linear regression analysis was used to examine the relationship between ΔU6-PP and other variables. RESULTS: The mandible exhibited counterclockwise rotation after maxillary molar intrusion, which led to closure of anterior open bite. Strong linear relationships, in descending order, between ΔU6-PP and ΔOB, Δanterior facial height (AFH), Δvertical reference plane (Pog), and Δsella-nasion to Go-menton (SN-GoMe), were observed. When the maxillary molar was intruded 1 mm, OB increased by 2.6 mm, AFH decreased by 1.7 mm, Pog moved forward by 2.3 mm, and SN-GoMe decreased by 2°. The center of mandibular autorotation was located 7.4 mm behind and 16.9 mm below condylion after molar intrusion. CONCLUSIONS: The mandible exhibited counterclockwise rotation after maxillary molar intrusion; the center of mandibular autorotation was located behind and below condylion with individual variations.-
dc.description.statementOfResponsibilityopen-
dc.languageEnglish-
dc.publisherEdward H. Angle Society of Orthodontia-
dc.relation.isPartOfAngle Orthodontist-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/2.0/kr/-
dc.titlePrediction of mandibular movement and its center of rotation for nonsurgical correction of anterior open bite via maxillary molar intrusion-
dc.typeArticle-
dc.contributor.collegeCollege of Dentistry (치과대학)-
dc.contributor.departmentDept. of Orthodontics (교정과학교실)-
dc.contributor.googleauthorKyunam Kim-
dc.contributor.googleauthorKwangchul Choy-
dc.contributor.googleauthorYoung-Chel Park-
dc.contributor.googleauthorSeo Yeon Han-
dc.contributor.googleauthorHeekyu Jung-
dc.contributor.googleauthorYoon Jeong Choi-
dc.identifier.doi10.2319/102317-714.1-
dc.contributor.localIdA01573-
dc.contributor.localIdA05636-
dc.contributor.localIdA05636-
dc.contributor.localIdA04139-
dc.contributor.localIdA04139-
dc.relation.journalcodeJ00149-
dc.identifier.eissn1945-7103-
dc.identifier.pmid29683335-
dc.identifier.urlhttp://www.angle.org/doi/10.2319/102317-714.1-
dc.subject.keywordAnterior open bite-
dc.subject.keywordCenter of rotation-
dc.subject.keywordMolar intrusion-
dc.contributor.alternativeNamePark, Young Chel-
dc.contributor.affiliatedAuthor박영철-
dc.contributor.affiliatedAuthor정희규-
dc.contributor.affiliatedAuthor정희규-
dc.contributor.affiliatedAuthor최윤정-
dc.contributor.affiliatedAuthor최윤정-
dc.citation.volume88-
dc.citation.number5-
dc.citation.startPage538-
dc.citation.endPage544-
dc.identifier.bibliographicCitationAngle Orthodontist, Vol.88(5) : 538-544, 2018-
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers

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