Relationship between depth of the curve of Spee and dentalfacial morphology in Angle Class Ⅱ maloclusion patients

Objective To compare the depth of the curve of Spee in Angle classⅡ malocclusion patients with dif⁃ ferent vertical skeletal patterns and to investigate the relationship between the depth of the curve of Spee and dentofa⁃ cial morphology. Methods 101 Angle classⅡ malocclusion patients were selecte...

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Main Authors: YANG Xiao, GE Hongshan
Format: Article
Language:zho
Published: Editorial Department of Journal of Prevention and Treatment for Stomatological Diseases 2017-06-01
Series:口腔疾病防治
Subjects:
Online Access:http://www.kqjbfz.com/EN/10.12016/j.issn.2096-1456.2017.06.009
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author YANG Xiao
GE Hongshan
author_facet YANG Xiao
GE Hongshan
author_sort YANG Xiao
collection DOAJ
description Objective To compare the depth of the curve of Spee in Angle classⅡ malocclusion patients with dif⁃ ferent vertical skeletal patterns and to investigate the relationship between the depth of the curve of Spee and dentofa⁃ cial morphology. Methods 101 Angle classⅡ malocclusion patients were selected and randomly divided into 3 groups based on their GoGn⁃SN angles⁃high angle, average angle and low angle. Lateral cephalograms and dental models of all patients were evaluated to analyze Spee curve depth difference among different groups, Correlation analysis and a multi⁃ ple linear regression analysis were performed to determine the relationship between the depth of the curve of Spee and all selected cephalometric variables. Results There was statistical difference in depth of the curve of Spee among dif⁃ ferent groups P < 0.05. The depth of the curve of Spee was least in the high angle group and greatest in the low angle group. GoGn⁃SN angle had statistically significant negative correlation with the depth of the curve of Spee, r = 0.428, P = 0.000, ODI, S⁃Go/N⁃Me、L7⁃GoGn angle had statistically significant positive correlation with the depth of the curve of Spee, r = 0.381, 0.357, 0.333, P = 0.000, 0.000, 0.001. The multiple linear regression analysis with stepwise method showed GoGn⁃SN angle had significant contribution to the depth of the curve of Spee. Conclusion In Angle classⅡ malocclusion patients, there was statistical difference in depth of the curve of Spee among different vertical skeletal pat⁃ terns. The depth of the curve of Spee is correlated with dentofacial morphology, GoGn⁃SN angle had significant contribu⁃ tion to the depth of the curve of Spee, which should be taken into consideration during orthodontic diagnosis and treat⁃ ment.
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spelling doaj.art-1b4d6019ae234184b75de352bc62bfc22022-12-21T19:10:05ZzhoEditorial Department of Journal of Prevention and Treatment for Stomatological Diseases口腔疾病防治2096-14562096-14562017-06-0125638538810.12016/j.issn.2096⁃1456.2017.06.009Relationship between depth of the curve of Spee and dentalfacial morphology in Angle Class Ⅱ maloclusion patientsYANG Xiao0 GE Hongshan1Department of Stomatology, The Second Affiliated Hospital of Nanchang UniversityThe Affiliated Stomatological Hospital of Nanchang Uni⁃ versity. The Key Laboratory of Oral Biomedicine, Jiangxi ProvinceObjective To compare the depth of the curve of Spee in Angle classⅡ malocclusion patients with dif⁃ ferent vertical skeletal patterns and to investigate the relationship between the depth of the curve of Spee and dentofa⁃ cial morphology. Methods 101 Angle classⅡ malocclusion patients were selected and randomly divided into 3 groups based on their GoGn⁃SN angles⁃high angle, average angle and low angle. Lateral cephalograms and dental models of all patients were evaluated to analyze Spee curve depth difference among different groups, Correlation analysis and a multi⁃ ple linear regression analysis were performed to determine the relationship between the depth of the curve of Spee and all selected cephalometric variables. Results There was statistical difference in depth of the curve of Spee among dif⁃ ferent groups P < 0.05. The depth of the curve of Spee was least in the high angle group and greatest in the low angle group. GoGn⁃SN angle had statistically significant negative correlation with the depth of the curve of Spee, r = 0.428, P = 0.000, ODI, S⁃Go/N⁃Me、L7⁃GoGn angle had statistically significant positive correlation with the depth of the curve of Spee, r = 0.381, 0.357, 0.333, P = 0.000, 0.000, 0.001. The multiple linear regression analysis with stepwise method showed GoGn⁃SN angle had significant contribution to the depth of the curve of Spee. Conclusion In Angle classⅡ malocclusion patients, there was statistical difference in depth of the curve of Spee among different vertical skeletal pat⁃ terns. The depth of the curve of Spee is correlated with dentofacial morphology, GoGn⁃SN angle had significant contribu⁃ tion to the depth of the curve of Spee, which should be taken into consideration during orthodontic diagnosis and treat⁃ ment.http://www.kqjbfz.com/EN/10.12016/j.issn.2096-1456.2017.06.009Angle classⅡ malocclusionVertical skeletal patternsCurve of SpeeDentalfacial morphology
spellingShingle YANG Xiao
GE Hongshan
Relationship between depth of the curve of Spee and dentalfacial morphology in Angle Class Ⅱ maloclusion patients
口腔疾病防治
Angle classⅡ malocclusion
Vertical skeletal patterns
Curve of Spee
Dentalfacial morphology
title Relationship between depth of the curve of Spee and dentalfacial morphology in Angle Class Ⅱ maloclusion patients
title_full Relationship between depth of the curve of Spee and dentalfacial morphology in Angle Class Ⅱ maloclusion patients
title_fullStr Relationship between depth of the curve of Spee and dentalfacial morphology in Angle Class Ⅱ maloclusion patients
title_full_unstemmed Relationship between depth of the curve of Spee and dentalfacial morphology in Angle Class Ⅱ maloclusion patients
title_short Relationship between depth of the curve of Spee and dentalfacial morphology in Angle Class Ⅱ maloclusion patients
title_sort relationship between depth of the curve of spee and dentalfacial morphology in angle class ii maloclusion patients
topic Angle classⅡ malocclusion
Vertical skeletal patterns
Curve of Spee
Dentalfacial morphology
url http://www.kqjbfz.com/EN/10.12016/j.issn.2096-1456.2017.06.009
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