A radiographic study of the mandibular third molar root development in different ethnic groups.
12p
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Journal of Forensic Odonto-Stomatology
2023
|
| Online Access: | https://ir.oauife.edu.ng/handle/123456789/6328 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1810764575782469632 |
|---|---|
| author | Liversidge, H M Peariasamy, K Folayan, M O Adeniyi, A O Ngom, P I Mikami, Y Shimada, Y Kuroe, K Tvete, I F Kvaal, S I |
| author_facet | Liversidge, H M Peariasamy, K Folayan, M O Adeniyi, A O Ngom, P I Mikami, Y Shimada, Y Kuroe, K Tvete, I F Kvaal, S I |
| author_sort | Liversidge, H M |
| collection | DSpace |
| description | 12p |
| format | Article |
| id | oai:ir.oauife.edu.ng:123456789-6328 |
| institution | My University |
| language | English |
| publishDate | 2023 |
| publisher | Journal of Forensic Odonto-Stomatology |
| record_format | dspace |
| spelling | oai:ir.oauife.edu.ng:123456789-63282023-09-27T03:01:13Z A radiographic study of the mandibular third molar root development in different ethnic groups. Liversidge, H M Peariasamy, K Folayan, M O Adeniyi, A O Ngom, P I Mikami, Y Shimada, Y Kuroe, K Tvete, I F Kvaal, S I 12p BACKGROUND The nature of differences in the timing of tooth formation between ethnic groups is important when estimating age. AIM To calculate age of transition of the mandibular third (M3) molar tooth stages from archived dental radiographs from sub-Saharan Africa, Malaysia, Japan and two groups from London UK (Whites and Bangladeshi). MATERIALS AND METHODS The number of radiographs was 4555 (2028 males, 2527 females) with an age range 10-25 years. The left M3 was staged into Moorrees stages. A probit model was fitted to calculate mean ages for transitions between stages for males and females and each ethnic group separately. The estimated age distributions given each M3 stage was calculated. To assess differences in timing of M3 between ethnic groups, three models were proposed: a separate model for each ethnic group, a joint model and a third model combining some aspects across groups. The best model fit was tested using Bayesian and Akaikes information criteria (BIC and AIC) and log likelihood ratio test. RESULTS Differences in mean ages of M3 root stages were found between ethnic groups, however all groups showed large standard deviation values. The AIC and log likelihood ratio test indicated that a separate model for each ethnic group was best. Small differences were also noted between timing of M3 between males and females, with the exception of the Malaysian group. These findings suggests that features of a reference data set (wide age range and uniform age distribution) and a Bayesian statistical approach are more important than population specific convenience samples to estimate age of an individual using M3. CONCLUSION Some group differences were evident in M3 timing, however, this has some impact on the confidence interval of estimated age in females and little impact in males because of the large variation in age. 2023-09-26T16:35:39Z 2023-09-26T16:35:39Z 2017-12-01T00:00:00Z Article Liversidge, H. M., Peariasamy, K., Folayan, M. O., Adeniyi, A. A., Ngom, P. I., Mikami, Y., ... & Kvaal, S. I. (2017). A radiographic study of the mandibular third molar root development in different ethnic groups. The Journal of forensic odonto-stomatology, 35(2), 97. 29384741 https://ir.oauife.edu.ng/handle/123456789/6328 en application/pdf Journal of Forensic Odonto-Stomatology |
| spellingShingle | Liversidge, H M Peariasamy, K Folayan, M O Adeniyi, A O Ngom, P I Mikami, Y Shimada, Y Kuroe, K Tvete, I F Kvaal, S I A radiographic study of the mandibular third molar root development in different ethnic groups. |
| title | A radiographic study of the mandibular third molar root development in different ethnic groups. |
| title_full | A radiographic study of the mandibular third molar root development in different ethnic groups. |
| title_fullStr | A radiographic study of the mandibular third molar root development in different ethnic groups. |
| title_full_unstemmed | A radiographic study of the mandibular third molar root development in different ethnic groups. |
| title_short | A radiographic study of the mandibular third molar root development in different ethnic groups. |
| title_sort | radiographic study of the mandibular third molar root development in different ethnic groups |
| url | https://ir.oauife.edu.ng/handle/123456789/6328 |
| work_keys_str_mv | AT liversidgehm aradiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT peariasamyk aradiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT folayanmo aradiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT adeniyiao aradiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT ngompi aradiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT mikamiy aradiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT shimaday aradiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT kuroek aradiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT tveteif aradiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT kvaalsi aradiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT liversidgehm radiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT peariasamyk radiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT folayanmo radiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT adeniyiao radiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT ngompi radiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT mikamiy radiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT shimaday radiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT kuroek radiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT tveteif radiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups AT kvaalsi radiographicstudyofthemandibularthirdmolarrootdevelopmentindifferentethnicgroups |