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Article: Dental age assessment of southern Chinese using the United Kingdom Caucasian reference dataset

TitleDental age assessment of southern Chinese using the United Kingdom Caucasian reference dataset
Authors
KeywordsDAA
Demirjian dataset
Dental age assessment
Dental panoramic tomography
Meta-analysis
Issue Date2012
PublisherElsevier Ireland Ltd. The Journal's web site is located at http://www.elsevier.com/locate/forsciint
Citation
Forensic Science International, 2012, v. 216 n. 1-3, p. 68-72 How to Cite?
AbstractDental age assessment is one the most accurate methods for estimating the age of an unknown person. Demirjian's dataset on a French-Canadian population has been widely tested for its applicability on various ethnic groups including southern Chinese. Following inaccurate results from these studies, investigators are now confronted with using alternate datasets for comparison. Testing the applicability of other reliable datasets which result in accurate findings might limit the need to develop population specific standards. Recently, a Reference Data Set (RDS) similar to the Demirjian was prepared in the United Kingdom (UK) and has been subsequently validated. The advantages of the UK Caucasian RDS includes versatility from including both the maxillary and mandibular dentitions, involvement of a wide age group of subjects for evaluation and the possibility of precise age estimation with the mathematical technique of meta-analysis. The aim of this study was to evaluate the applicability of the United Kingdom Caucasian RDS on southern Chinese subjects. Dental panoramic tomographs (DPT) of 266 subjects (133 males and 133 females) aged 2-21 years that were previously taken for clinical diagnostic purposes were selected and scored by a single calibrated examiner based on Demirjian's classification of tooth developmental stages (A-H). The ages corresponding to each stage of tooth developmental stage were obtained from the UK dataset. Intra-examiner reproducibility was tested and the Cohen kappa (0.88) showed that the level of agreement was 'almost perfect'. The estimated dental age was then compared with the chronological age using a paired t-test, with statistical significance set at p<0.01. The results showed that the UK dataset, underestimated the age of southern Chinese subjects by 0.24 years but the results were not statistically significant. In conclusion, the UK Caucasian RDS may not be suitable for estimating the age of southern Chinese subjects and there is a need for an ethnic specific reference dataset for southern Chinese. © 2011.
Persistent Identifierhttp://hdl.handle.net/10722/146382
ISSN
2015 Impact Factor: 1.95
2015 SCImago Journal Rankings: 1.210
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorJayaraman, Jen_HK
dc.contributor.authorRoberts, GJen_HK
dc.contributor.authorKing, NMen_HK
dc.contributor.authorWong, HMen_HK
dc.date.accessioned2012-04-24T07:50:04Z-
dc.date.available2012-04-24T07:50:04Z-
dc.date.issued2012en_HK
dc.identifier.citationForensic Science International, 2012, v. 216 n. 1-3, p. 68-72en_HK
dc.identifier.issn0379-0738en_HK
dc.identifier.urihttp://hdl.handle.net/10722/146382-
dc.description.abstractDental age assessment is one the most accurate methods for estimating the age of an unknown person. Demirjian's dataset on a French-Canadian population has been widely tested for its applicability on various ethnic groups including southern Chinese. Following inaccurate results from these studies, investigators are now confronted with using alternate datasets for comparison. Testing the applicability of other reliable datasets which result in accurate findings might limit the need to develop population specific standards. Recently, a Reference Data Set (RDS) similar to the Demirjian was prepared in the United Kingdom (UK) and has been subsequently validated. The advantages of the UK Caucasian RDS includes versatility from including both the maxillary and mandibular dentitions, involvement of a wide age group of subjects for evaluation and the possibility of precise age estimation with the mathematical technique of meta-analysis. The aim of this study was to evaluate the applicability of the United Kingdom Caucasian RDS on southern Chinese subjects. Dental panoramic tomographs (DPT) of 266 subjects (133 males and 133 females) aged 2-21 years that were previously taken for clinical diagnostic purposes were selected and scored by a single calibrated examiner based on Demirjian's classification of tooth developmental stages (A-H). The ages corresponding to each stage of tooth developmental stage were obtained from the UK dataset. Intra-examiner reproducibility was tested and the Cohen kappa (0.88) showed that the level of agreement was 'almost perfect'. The estimated dental age was then compared with the chronological age using a paired t-test, with statistical significance set at p<0.01. The results showed that the UK dataset, underestimated the age of southern Chinese subjects by 0.24 years but the results were not statistically significant. In conclusion, the UK Caucasian RDS may not be suitable for estimating the age of southern Chinese subjects and there is a need for an ethnic specific reference dataset for southern Chinese. © 2011.en_HK
dc.languageengen_US
dc.publisherElsevier Ireland Ltd. The Journal's web site is located at http://www.elsevier.com/locate/forsciinten_HK
dc.relation.ispartofForensic Science Internationalen_HK
dc.subjectDAAen_HK
dc.subjectDemirjian dataseten_HK
dc.subjectDental age assessmenten_HK
dc.subjectDental panoramic tomographyen_HK
dc.subjectMeta-analysisen_HK
dc.titleDental age assessment of southern Chinese using the United Kingdom Caucasian reference dataseten_HK
dc.typeArticleen_HK
dc.identifier.emailKing, NM: hhdbknm@hkucc.hku.hken_HK
dc.identifier.emailWong, HM: wonghmg@hkucc.hku.hken_HK
dc.identifier.authorityKing, NM=rp00006en_HK
dc.identifier.authorityWong, HM=rp00042en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.forsciint.2011.08.019en_HK
dc.identifier.pmid21944776-
dc.identifier.scopuseid_2-s2.0-84857505906en_HK
dc.identifier.hkuros199251en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84857505906&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume216en_HK
dc.identifier.issue1-3en_HK
dc.identifier.spage68en_HK
dc.identifier.epage72en_HK
dc.identifier.eissn1872-6283-
dc.identifier.isiWOS:000300837000011-
dc.publisher.placeIrelanden_HK
dc.identifier.scopusauthoridJayaraman, J=51565457300en_HK
dc.identifier.scopusauthoridRoberts, GJ=7403400997en_HK
dc.identifier.scopusauthoridKing, NM=7201762850en_HK
dc.identifier.scopusauthoridWong, HM=12765604700en_HK
dc.identifier.citeulike9824069-

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