Dental age assessment of North Indian origin children using Nolla’s method in mandibular second molar
Abstract Background A cross-sectional study was done on 900 children of North Indian origin, (male = 458; female = 442) aged 10 to 16 years. Digital radiovisiography of permanent mandibular second molar was chosen over higher radiation extra oral projections used for whole arch-like orthopantogram....
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-07-01
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| Series: | Egyptian Journal of Forensic Sciences |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s41935-020-00194-3 |
| _version_ | 1818302424193957888 |
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| author | Harsh Vijay Singh Namita Kalra Rishi Tyagi Amit Khatri |
| author_facet | Harsh Vijay Singh Namita Kalra Rishi Tyagi Amit Khatri |
| author_sort | Harsh Vijay Singh |
| collection | DOAJ |
| description | Abstract Background A cross-sectional study was done on 900 children of North Indian origin, (male = 458; female = 442) aged 10 to 16 years. Digital radiovisiography of permanent mandibular second molar was chosen over higher radiation extra oral projections used for whole arch-like orthopantogram. Each image was evaluated for mean dental age using Nolla’s method of age estimation and was compared to the mean chronological age of children in the study group. The study was conducted to evaluate the applicability of Nolla’s method of age estimation in the North Indian population. Results The mean dental age was found to be significantly underestimated by (1.8 ± 5.5) months in 900 children. The trend of underestimation was more in males ((2.5 ± 4.2) months) as compared to females ((1.1 ± 6.4) months). Both sexes showed underestimation of chronological age till 14 years. However, the dental age and chronological age became similar at 14 years, and overestimation of chronological age was observed afterwards (p value > 0.001). Conclusion Nolla’s method of age estimation using radiovisiograph for mandibular second molar is a reliable method in children of North Indian origin, although it underestimates the chronological age. After the average age of 14, dental age surpassed chronological age in the study group. In addition, permanent mandibular second molar was found to be a reliable tooth for dental age estimation. |
| first_indexed | 2024-12-13T05:38:41Z |
| format | Article |
| id | doaj.art-4b7fd667cf604c79b312be21695e6423 |
| institution | Directory Open Access Journal |
| issn | 2090-5939 |
| language | English |
| last_indexed | 2024-12-13T05:38:41Z |
| publishDate | 2020-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Egyptian Journal of Forensic Sciences |
| spelling | doaj.art-4b7fd667cf604c79b312be21695e64232022-12-21T23:57:51ZengSpringerOpenEgyptian Journal of Forensic Sciences2090-59392020-07-011011710.1186/s41935-020-00194-3Dental age assessment of North Indian origin children using Nolla’s method in mandibular second molarHarsh Vijay Singh0Namita Kalra1Rishi Tyagi2Amit Khatri3Department of Pedodontics and Preventive Dentistry, University College of Medical Sciences, Guru Teg Bahadur Hospital, University of DelhiDepartment of Pedodontics and Preventive Dentistry, University College of Medical Sciences, Guru Teg Bahadur Hospital, University of DelhiDepartment of Pedodontics and Preventive Dentistry, University College of Medical Sciences, Guru Teg Bahadur Hospital, University of DelhiDepartment of Pedodontics and Preventive Dentistry, University College of Medical Sciences, Guru Teg Bahadur Hospital, University of DelhiAbstract Background A cross-sectional study was done on 900 children of North Indian origin, (male = 458; female = 442) aged 10 to 16 years. Digital radiovisiography of permanent mandibular second molar was chosen over higher radiation extra oral projections used for whole arch-like orthopantogram. Each image was evaluated for mean dental age using Nolla’s method of age estimation and was compared to the mean chronological age of children in the study group. The study was conducted to evaluate the applicability of Nolla’s method of age estimation in the North Indian population. Results The mean dental age was found to be significantly underestimated by (1.8 ± 5.5) months in 900 children. The trend of underestimation was more in males ((2.5 ± 4.2) months) as compared to females ((1.1 ± 6.4) months). Both sexes showed underestimation of chronological age till 14 years. However, the dental age and chronological age became similar at 14 years, and overestimation of chronological age was observed afterwards (p value > 0.001). Conclusion Nolla’s method of age estimation using radiovisiograph for mandibular second molar is a reliable method in children of North Indian origin, although it underestimates the chronological age. After the average age of 14, dental age surpassed chronological age in the study group. In addition, permanent mandibular second molar was found to be a reliable tooth for dental age estimation.http://link.springer.com/article/10.1186/s41935-020-00194-3Dental age estimationNolla’s methodNorth IndianMandibular second molarRadiovisiograph |
| spellingShingle | Harsh Vijay Singh Namita Kalra Rishi Tyagi Amit Khatri Dental age assessment of North Indian origin children using Nolla’s method in mandibular second molar Egyptian Journal of Forensic Sciences Dental age estimation Nolla’s method North Indian Mandibular second molar Radiovisiograph |
| title | Dental age assessment of North Indian origin children using Nolla’s method in mandibular second molar |
| title_full | Dental age assessment of North Indian origin children using Nolla’s method in mandibular second molar |
| title_fullStr | Dental age assessment of North Indian origin children using Nolla’s method in mandibular second molar |
| title_full_unstemmed | Dental age assessment of North Indian origin children using Nolla’s method in mandibular second molar |
| title_short | Dental age assessment of North Indian origin children using Nolla’s method in mandibular second molar |
| title_sort | dental age assessment of north indian origin children using nolla s method in mandibular second molar |
| topic | Dental age estimation Nolla’s method North Indian Mandibular second molar Radiovisiograph |
| url | http://link.springer.com/article/10.1186/s41935-020-00194-3 |
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