Analysis of dentofacial characteristics in Han Chinese adults with facial harmony
Objective·To establish Downs cephalometric norms for the Han Chinese aged 18‒25 with harmonious faces, and to analyze gender and regional characteristics.Methods·A stratified sampling approach was used to recruit participants from seven geographic regions across China. Over 30 000 volunteers were sc...
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Editorial Office of Journal of Shanghai Jiao Tong University (Medical Science)
2025-03-01
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| Series: | Shanghai Jiaotong Daxue xuebao. Yixue ban |
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| Online Access: | https://xuebao.shsmu.edu.cn/CN/10.3969/j.issn.1674-8115.2025.03.008 |
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| author | CHEN Siyue LI Sitong GU Kaijun DU Changxin ZHU Yanfei ZHENG Chao ZHOU Jing HE Ying ZHU Min |
| author_facet | CHEN Siyue LI Sitong GU Kaijun DU Changxin ZHU Yanfei ZHENG Chao ZHOU Jing HE Ying ZHU Min |
| author_sort | CHEN Siyue |
| collection | DOAJ |
| description | Objective·To establish Downs cephalometric norms for the Han Chinese aged 18‒25 with harmonious faces, and to analyze gender and regional characteristics.Methods·A stratified sampling approach was used to recruit participants from seven geographic regions across China. Over 30 000 volunteers were screened, and 883 participants with harmonious faces were ultimately included. Basic demographic data were collected, and lateral cephalometric radiographs were taken. Hard tissue measurements were performed with Downs analysis (using anatomical porion). The data were then statistically analyzed to compare gender and regional differences in dentofacial structures.Results·The gender differences in the four hard tissue measurements, the angle of convexity, A-B plane angle, mandibular plane angle, and occlusal plane angle, were statistically significant (P<0.001). Females showed larger values for the angle of convexity, mandibular plane angle, and occlusal plane angle, but smaller values for the A-B plane angle, compared to males. The gender differences in the interincisal angle, L1 to occlusal plane, L1 to mandibular plane, and U1 to AP plane were not statistically significant. There were regional differences in all 10 measurements of Downs analysis, though some regions shared common features. Specifically, the northeastern, eastern, and southern coastal regions exhibited a smaller facial angle, and larger mandibular plane angle, angle of convexity, occlusal plane angle, and U1 to AP plane. It suggested that, compared to inland regions, individuals from coastal regions tended to have more retrusive chins, steeper mandibular planes, more prominent upper incisors, and more convex hard tissue profiles.Conclusion·Gender differences exist in the dentofacial hard tissue structures of Han Chinese adults with harmonious faces, primarily in skeletal measurements. Each region has its unique dentofacial characteristics, along with some common features. These differences should be taken into account in clinical diagnosis and treatment for the development of personalized and precise therapeutic strategies. |
| format | Article |
| id | doaj-art-509afe5e2cf64cd58b3e3c12b878ab7b |
| institution | OA Journals |
| issn | 1674-8115 |
| language | zho |
| publishDate | 2025-03-01 |
| publisher | Editorial Office of Journal of Shanghai Jiao Tong University (Medical Science) |
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| series | Shanghai Jiaotong Daxue xuebao. Yixue ban |
| spelling | doaj-art-509afe5e2cf64cd58b3e3c12b878ab7b2025-08-20T01:55:34ZzhoEditorial Office of Journal of Shanghai Jiao Tong University (Medical Science)Shanghai Jiaotong Daxue xuebao. Yixue ban1674-81152025-03-0145331732310.3969/j.issn.1674-8115.2025.03.0081674-8115（2025）03-0317-07Analysis of dentofacial characteristics in Han Chinese adults with facial harmonyCHEN Siyue0LI Sitong1GU Kaijun2DU Changxin3ZHU Yanfei4ZHENG Chao5ZHOU Jing6HE Ying7ZHU Min8Centre of Craniofacial Orthodontics, Department of Oral and Maxillofacial Surgery, Shanghai Ninth People′s Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, Shanghai 200011, ChinaCentre of Craniofacial Orthodontics, Department of Oral and Maxillofacial Surgery, Shanghai Ninth People′s Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, Shanghai 200011, ChinaCentre of Craniofacial Orthodontics, Department of Oral and Maxillofacial Surgery, Shanghai Ninth People′s Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, Shanghai 200011, ChinaCentre of Craniofacial Orthodontics, Department of Oral and Maxillofacial Surgery, Shanghai Ninth People′s Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, Shanghai 200011, ChinaCentre of Craniofacial Orthodontics, Department of Oral and Maxillofacial Surgery, Shanghai Ninth People′s Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, Shanghai 200011, ChinaDepartment of Orthodontics, Hospital of Stomatological, Tianjin Medical University, Tianjin 300070College of Medical Technology, Shanghai University of Medicine and Health Sciences, Shanghai 201318, ChinaDepartment of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, ChinaCentre of Craniofacial Orthodontics, Department of Oral and Maxillofacial Surgery, Shanghai Ninth People′s Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology, Shanghai 200011, ChinaObjective·To establish Downs cephalometric norms for the Han Chinese aged 18‒25 with harmonious faces, and to analyze gender and regional characteristics.Methods·A stratified sampling approach was used to recruit participants from seven geographic regions across China. Over 30 000 volunteers were screened, and 883 participants with harmonious faces were ultimately included. Basic demographic data were collected, and lateral cephalometric radiographs were taken. Hard tissue measurements were performed with Downs analysis (using anatomical porion). The data were then statistically analyzed to compare gender and regional differences in dentofacial structures.Results·The gender differences in the four hard tissue measurements, the angle of convexity, A-B plane angle, mandibular plane angle, and occlusal plane angle, were statistically significant (P<0.001). Females showed larger values for the angle of convexity, mandibular plane angle, and occlusal plane angle, but smaller values for the A-B plane angle, compared to males. The gender differences in the interincisal angle, L1 to occlusal plane, L1 to mandibular plane, and U1 to AP plane were not statistically significant. There were regional differences in all 10 measurements of Downs analysis, though some regions shared common features. Specifically, the northeastern, eastern, and southern coastal regions exhibited a smaller facial angle, and larger mandibular plane angle, angle of convexity, occlusal plane angle, and U1 to AP plane. It suggested that, compared to inland regions, individuals from coastal regions tended to have more retrusive chins, steeper mandibular planes, more prominent upper incisors, and more convex hard tissue profiles.Conclusion·Gender differences exist in the dentofacial hard tissue structures of Han Chinese adults with harmonious faces, primarily in skeletal measurements. Each region has its unique dentofacial characteristics, along with some common features. These differences should be taken into account in clinical diagnosis and treatment for the development of personalized and precise therapeutic strategies.https://xuebao.shsmu.edu.cn/CN/10.3969/j.issn.1674-8115.2025.03.008cephalometryharmonious facehan chinese peopleadultnormal occlusion |
| spellingShingle | CHEN Siyue LI Sitong GU Kaijun DU Changxin ZHU Yanfei ZHENG Chao ZHOU Jing HE Ying ZHU Min Analysis of dentofacial characteristics in Han Chinese adults with facial harmony Shanghai Jiaotong Daxue xuebao. Yixue ban cephalometry harmonious face han chinese people adult normal occlusion |
| title | Analysis of dentofacial characteristics in Han Chinese adults with facial harmony |
| title_full | Analysis of dentofacial characteristics in Han Chinese adults with facial harmony |
| title_fullStr | Analysis of dentofacial characteristics in Han Chinese adults with facial harmony |
| title_full_unstemmed | Analysis of dentofacial characteristics in Han Chinese adults with facial harmony |
| title_short | Analysis of dentofacial characteristics in Han Chinese adults with facial harmony |
| title_sort | analysis of dentofacial characteristics in han chinese adults with facial harmony |
| topic | cephalometry harmonious face han chinese people adult normal occlusion |
| url | https://xuebao.shsmu.edu.cn/CN/10.3969/j.issn.1674-8115.2025.03.008 |
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