Comparative assessment of the Willems dental age estimation methods: a Chinese population-based radiographic study
Abstract Background The comparison of the two Willems dental age estimation methods (gender-specific (Willems I) and non-gender-specific (Willems II)) has not been fully investigated. Here we aimed to explore the applicability of the Willems dental age estimation in an Eastern Chinese population, wh...
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| Format: | Article |
| Language: | English |
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BMC
2022-09-01
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| Series: | BMC Oral Health |
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| Online Access: | https://doi.org/10.1186/s12903-022-02418-5 |
| _version_ | 1811274815828393984 |
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| author | Jian Wang Linfeng Fan Shihui Shen Meizhi Sui Jiaxin Zhou Xiaoyan Yuan Yiwen Wu Pingping Zhong Fang Ji Jiang Tao |
| author_facet | Jian Wang Linfeng Fan Shihui Shen Meizhi Sui Jiaxin Zhou Xiaoyan Yuan Yiwen Wu Pingping Zhong Fang Ji Jiang Tao |
| author_sort | Jian Wang |
| collection | DOAJ |
| description | Abstract Background The comparison of the two Willems dental age estimation methods (gender-specific (Willems I) and non-gender-specific (Willems II)) has not been fully investigated. Here we aimed to explore the applicability of the Willems dental age estimation in an Eastern Chinese population, which may cast light on the field of dental age estimation. Methods A total of 1211 oral panoramic radiographs (582 boys and 629 girls) of the Chinese Han population aged 11–16 years old were collected. Dental ages (DAs) were calculated using the Willems method. Statistical significance was set at a p-value < 0.05. Age differences between chronological age (CA) and dental age were analyzed by paired t-tests and mean absolute error (MAE). Results The differences between CA and DA determined by the Willems I method were + 0.44 and + 0.09 years for boys and girls, respectively. When using the Willems II method, these differences were + 0.57 and − 0.09. The MAEs of the Willems I method between DA and CA were 0.95 and 1.00 years in boys and girls, respectively. For Willems II, MAEs were 1.02 and 1.00 years in boys and girls. Conclusions This study showed that the Willems I method was more accurate than the Willems II method in the boys’ group for predicting age from a whole scale. In comparison, Willems II is more competitive in the girls' group. Neither method may be satisfactory for 11-to-16-year-old teenagers in Eastern China. |
| first_indexed | 2024-04-12T23:27:04Z |
| format | Article |
| id | doaj.art-80aa2ac3ef1b428b99e73cfb468124cb |
| institution | Directory Open Access Journal |
| issn | 1472-6831 |
| language | English |
| last_indexed | 2024-04-12T23:27:04Z |
| publishDate | 2022-09-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Oral Health |
| spelling | doaj.art-80aa2ac3ef1b428b99e73cfb468124cb2022-12-22T03:12:23ZengBMCBMC Oral Health1472-68312022-09-012211610.1186/s12903-022-02418-5Comparative assessment of the Willems dental age estimation methods: a Chinese population-based radiographic studyJian Wang0Linfeng Fan1Shihui Shen2Meizhi Sui3Jiaxin Zhou4Xiaoyan Yuan5Yiwen Wu6Pingping Zhong7Fang Ji8Jiang Tao9Department of General Dentistry, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong UniversityDepartment of Radiology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong UniversityDepartment of General Dentistry, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong UniversityDepartment of General Dentistry, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong UniversityDepartment of General Dentistry, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong UniversityDepartment of General Dentistry, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong UniversityDepartment of General Dentistry, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong UniversityDepartment of General Dentistry, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong UniversityDepartment of Orthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong UniversityDepartment of General Dentistry, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong UniversityAbstract Background The comparison of the two Willems dental age estimation methods (gender-specific (Willems I) and non-gender-specific (Willems II)) has not been fully investigated. Here we aimed to explore the applicability of the Willems dental age estimation in an Eastern Chinese population, which may cast light on the field of dental age estimation. Methods A total of 1211 oral panoramic radiographs (582 boys and 629 girls) of the Chinese Han population aged 11–16 years old were collected. Dental ages (DAs) were calculated using the Willems method. Statistical significance was set at a p-value < 0.05. Age differences between chronological age (CA) and dental age were analyzed by paired t-tests and mean absolute error (MAE). Results The differences between CA and DA determined by the Willems I method were + 0.44 and + 0.09 years for boys and girls, respectively. When using the Willems II method, these differences were + 0.57 and − 0.09. The MAEs of the Willems I method between DA and CA were 0.95 and 1.00 years in boys and girls, respectively. For Willems II, MAEs were 1.02 and 1.00 years in boys and girls. Conclusions This study showed that the Willems I method was more accurate than the Willems II method in the boys’ group for predicting age from a whole scale. In comparison, Willems II is more competitive in the girls' group. Neither method may be satisfactory for 11-to-16-year-old teenagers in Eastern China.https://doi.org/10.1186/s12903-022-02418-5Dental age estimationWillems methodChinese populationTooth development |
| spellingShingle | Jian Wang Linfeng Fan Shihui Shen Meizhi Sui Jiaxin Zhou Xiaoyan Yuan Yiwen Wu Pingping Zhong Fang Ji Jiang Tao Comparative assessment of the Willems dental age estimation methods: a Chinese population-based radiographic study BMC Oral Health Dental age estimation Willems method Chinese population Tooth development |
| title | Comparative assessment of the Willems dental age estimation methods: a Chinese population-based radiographic study |
| title_full | Comparative assessment of the Willems dental age estimation methods: a Chinese population-based radiographic study |
| title_fullStr | Comparative assessment of the Willems dental age estimation methods: a Chinese population-based radiographic study |
| title_full_unstemmed | Comparative assessment of the Willems dental age estimation methods: a Chinese population-based radiographic study |
| title_short | Comparative assessment of the Willems dental age estimation methods: a Chinese population-based radiographic study |
| title_sort | comparative assessment of the willems dental age estimation methods a chinese population based radiographic study |
| topic | Dental age estimation Willems method Chinese population Tooth development |
| url | https://doi.org/10.1186/s12903-022-02418-5 |
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