• Cinical Study •

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

Anyi CAO1(), Lan JIAO1, Fang CAO1, Zhen WANG1(), Xiao YANG2, Hongshan GE3

1. 1. Department of Ortho-dontics, Huizhou Stomatological Hospital, Huizhou 516001, China
2. Department of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, China
3. The Affiliated Stomatological Hospital of Nanchang University. The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang 330000, China
• Received:2016-08-10 Revised:2016-09-26 Online:2017-06-20 Published:2018-09-03

安氏Ⅱ类错患者Spee 曲线深度与牙颌面形态间的关系

1. 1. 惠州口腔医院正畸科，广东惠州（516001）
2. 南昌大学第二附属医院口腔科，江西南昌（330000）
3. 南昌大学附属口腔医院·江西省口腔生物医学重点实验室，江西南昌（330000）
• 作者简介:

【作者简介】 曹安怡,主治医师,硕士,Email：184343400@qq.com

• 基金资助:
江西省重点研发计划项目（20161BBG70152）

Abstract:

Objective To compare the depth of the curve of Spee in Angle classⅡ malocclusion patients with different vertical skeletal patterns and to investigate the relationship between the depth of the curve of Spee and dentofacial 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 multiple 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 different 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. In Angle classⅡ malocclusion patients, there was statistical difference in depth of the curve of Spee among different vertical skeletal patterns.Conclusion The depth of the curve of Spee is correlated with dentofacial morphology, GoGn-SN angle had significant contribution to the depth of the curve of Spee, which should be taken into consideration during orthodontic diagnosis and treatment.

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