| Title |
Accuracy of the Demirjian and Willems methods of dental age estimation for children from central southern China
|
|---|---|
| Published in |
International Journal of Legal Medicine, September 2018
|
| DOI | 10.1007/s00414-018-1924-3 |
| Pubmed ID | |
| Authors |
Zedeng Yang, Kun Geng, Yanfang Liu, Shule Sun, Dan Wen, Jiao Xiao, Yusong Zheng, Jifeng Cai, Lagabaiyila Zha, Ying Liu |
| Abstract |
The aim of this study was to compare the accuracy of the Demirjian method and the Demirjian method as revised by Willems for age estimation based on orthopantomograms from central southern Chinese Han population aged 8-16 years. Discrepancies between chronological and estimated ages were statistically evaluated by analyzing 1249 orthopantomograms from 603 girls and 646 boys. Using the Demirjian method, the mean age estimates underestimated chronological age by 0.03 years (p = 0.48) for girls and overestimated it by 0.03 years (p = 0.59) for boys; these differences with respect to chronological age were not statistically significant. In contrast, the Willems method underestimated chronological age by 0.54 years (p < 0.01) for girls and 0.44 years (p < 0.01) for boys; these differences with respect to chronological age were statistically significant. Compared to the Demirjian method, the overall mean absolute error generated using the Willems method was slightly higher (0.85 and 0.86 years, respectively). Since the Demirjian method was more accurate, we highly recommend that it should be applied when estimating dental age in the Chinese Han population. Further modifications of these two methods for populations from other regions and additional studies of other age groups are warranted. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 51 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 51 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 7 | 14% |
| Student > Master | 6 | 12% |
| Student > Postgraduate | 5 | 10% |
| Student > Ph. D. Student | 4 | 8% |
| Researcher | 3 | 6% |
| Other | 8 | 16% |
| Unknown | 18 | 35% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 26 | 51% |
| Social Sciences | 2 | 4% |
| Nursing and Health Professions | 1 | 2% |
| Veterinary Science and Veterinary Medicine | 1 | 2% |
| Economics, Econometrics and Finance | 1 | 2% |
| Other | 0 | 0% |
| Unknown | 20 | 39% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 11 September 2018.
All research outputs
#15,545,423
of 23,103,436 outputs
Outputs from International Journal of Legal Medicine
#978
of 2,091 outputs
Outputs of similar age
#213,372
of 337,559 outputs
Outputs of similar age from International Journal of Legal Medicine
#23
of 56 outputs
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