The accuracy of estimating chronological age from Demirjian and Nolla methods in a Portuguese and Spanish sample
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/109375 https://doi.org/10.1186/1472-6831-14-160 |
Resumo: | Background: Age determination has great importance in many clinical decisions, being commonly used in odontopediatrics, orthodontics, pediatrics, and forensic medicine. The Nolla and Demirjian et al. methods have been used for these purposes. However, estimating chronological age by means of the dental mineralization stage is not a straightforward analysis, and it is fundamental to test the validity of these methods and their applicability to populations. In this article we intend to compare the accuracy of estimating chronological age from dental age measured with the Nolla and Demirjian methods in a Portuguese and Spanish sample, considering the variables of sex and age-group. Methods: The sample was composed of 821 orthopantomographs of healthy Portuguese (n = 270) and Spanish (n = 551) subjects from 4 to 34 years old. For the Nolla and Demirjian methods, seven mandibular left teeth were examined, staged according to the dental maturity scale of each method. We obtained a good index of inter-rater agreement, a good internal consistency for the teeth assessment, and a good temporal consistency. Results: Dental age was calculated for each method. The Demirjian et al. method tends to overestimate the real age of participants and the Nolla method tends to underestimate it. The accuracy of both methods varied between the sexes and age groups. Both methods were found to be more precise with males. As the age-group increases, the predictive capacities of both methods diminish. The Nolla method was more accurate than the Demirjian method in early and late childhood for both sexes. Neither method could predict chronological age in adults. Conclusions: We can estimate chronological age for early and late childhood, through the Nolla and Demirjian methods, with the former showing greater predictive capacities than the latter. The Demirjian method tends to overestimate age and the Nolla method tends to underestimate it, leading to the importance of forming regression equations adapted to the population studied. Nolla and Demirjian formulas adapted to our sample were created as a function of sex and age-group. |
id |
RCAP_d4da2241972f1526d3da7e74a04120fe |
---|---|
oai_identifier_str |
oai:estudogeral.uc.pt:10316/109375 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
The accuracy of estimating chronological age from Demirjian and Nolla methods in a Portuguese and Spanish sampleNolla methodDemirjian methodAge estimationChronological ageAdolescentAdultAge Determination by TeethAge FactorsChildChild, PreschoolFemaleForecastingHumansMalePortugalPredictive Value of TestsRadiography, PanoramicSex FactorsSpainTooth CalcificationYoung AdultBackground: Age determination has great importance in many clinical decisions, being commonly used in odontopediatrics, orthodontics, pediatrics, and forensic medicine. The Nolla and Demirjian et al. methods have been used for these purposes. However, estimating chronological age by means of the dental mineralization stage is not a straightforward analysis, and it is fundamental to test the validity of these methods and their applicability to populations. In this article we intend to compare the accuracy of estimating chronological age from dental age measured with the Nolla and Demirjian methods in a Portuguese and Spanish sample, considering the variables of sex and age-group. Methods: The sample was composed of 821 orthopantomographs of healthy Portuguese (n = 270) and Spanish (n = 551) subjects from 4 to 34 years old. For the Nolla and Demirjian methods, seven mandibular left teeth were examined, staged according to the dental maturity scale of each method. We obtained a good index of inter-rater agreement, a good internal consistency for the teeth assessment, and a good temporal consistency. Results: Dental age was calculated for each method. The Demirjian et al. method tends to overestimate the real age of participants and the Nolla method tends to underestimate it. The accuracy of both methods varied between the sexes and age groups. Both methods were found to be more precise with males. As the age-group increases, the predictive capacities of both methods diminish. The Nolla method was more accurate than the Demirjian method in early and late childhood for both sexes. Neither method could predict chronological age in adults. Conclusions: We can estimate chronological age for early and late childhood, through the Nolla and Demirjian methods, with the former showing greater predictive capacities than the latter. The Demirjian method tends to overestimate age and the Nolla method tends to underestimate it, leading to the importance of forming regression equations adapted to the population studied. Nolla and Demirjian formulas adapted to our sample were created as a function of sex and age-group.Springer Nature2014-12-23info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/109375http://hdl.handle.net/10316/109375https://doi.org/10.1186/1472-6831-14-160eng1472-6831Tomás, Luís FMónico, Lisete S. M.Tomás, InmaculadaVarela-Patiño, PurificaciónMartin-Biedma, Benjamíninfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-10-11T11:16:25Zoai:estudogeral.uc.pt:10316/109375Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:25:34.496137Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
The accuracy of estimating chronological age from Demirjian and Nolla methods in a Portuguese and Spanish sample |
title |
The accuracy of estimating chronological age from Demirjian and Nolla methods in a Portuguese and Spanish sample |
spellingShingle |
The accuracy of estimating chronological age from Demirjian and Nolla methods in a Portuguese and Spanish sample Tomás, Luís F Nolla method Demirjian method Age estimation Chronological age Adolescent Adult Age Determination by Teeth Age Factors Child Child, Preschool Female Forecasting Humans Male Portugal Predictive Value of Tests Radiography, Panoramic Sex Factors Spain Tooth Calcification Young Adult |
title_short |
The accuracy of estimating chronological age from Demirjian and Nolla methods in a Portuguese and Spanish sample |
title_full |
The accuracy of estimating chronological age from Demirjian and Nolla methods in a Portuguese and Spanish sample |
title_fullStr |
The accuracy of estimating chronological age from Demirjian and Nolla methods in a Portuguese and Spanish sample |
title_full_unstemmed |
The accuracy of estimating chronological age from Demirjian and Nolla methods in a Portuguese and Spanish sample |
title_sort |
The accuracy of estimating chronological age from Demirjian and Nolla methods in a Portuguese and Spanish sample |
author |
Tomás, Luís F |
author_facet |
Tomás, Luís F Mónico, Lisete S. M. Tomás, Inmaculada Varela-Patiño, Purificación Martin-Biedma, Benjamín |
author_role |
author |
author2 |
Mónico, Lisete S. M. Tomás, Inmaculada Varela-Patiño, Purificación Martin-Biedma, Benjamín |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Tomás, Luís F Mónico, Lisete S. M. Tomás, Inmaculada Varela-Patiño, Purificación Martin-Biedma, Benjamín |
dc.subject.por.fl_str_mv |
Nolla method Demirjian method Age estimation Chronological age Adolescent Adult Age Determination by Teeth Age Factors Child Child, Preschool Female Forecasting Humans Male Portugal Predictive Value of Tests Radiography, Panoramic Sex Factors Spain Tooth Calcification Young Adult |
topic |
Nolla method Demirjian method Age estimation Chronological age Adolescent Adult Age Determination by Teeth Age Factors Child Child, Preschool Female Forecasting Humans Male Portugal Predictive Value of Tests Radiography, Panoramic Sex Factors Spain Tooth Calcification Young Adult |
description |
Background: Age determination has great importance in many clinical decisions, being commonly used in odontopediatrics, orthodontics, pediatrics, and forensic medicine. The Nolla and Demirjian et al. methods have been used for these purposes. However, estimating chronological age by means of the dental mineralization stage is not a straightforward analysis, and it is fundamental to test the validity of these methods and their applicability to populations. In this article we intend to compare the accuracy of estimating chronological age from dental age measured with the Nolla and Demirjian methods in a Portuguese and Spanish sample, considering the variables of sex and age-group. Methods: The sample was composed of 821 orthopantomographs of healthy Portuguese (n = 270) and Spanish (n = 551) subjects from 4 to 34 years old. For the Nolla and Demirjian methods, seven mandibular left teeth were examined, staged according to the dental maturity scale of each method. We obtained a good index of inter-rater agreement, a good internal consistency for the teeth assessment, and a good temporal consistency. Results: Dental age was calculated for each method. The Demirjian et al. method tends to overestimate the real age of participants and the Nolla method tends to underestimate it. The accuracy of both methods varied between the sexes and age groups. Both methods were found to be more precise with males. As the age-group increases, the predictive capacities of both methods diminish. The Nolla method was more accurate than the Demirjian method in early and late childhood for both sexes. Neither method could predict chronological age in adults. Conclusions: We can estimate chronological age for early and late childhood, through the Nolla and Demirjian methods, with the former showing greater predictive capacities than the latter. The Demirjian method tends to overestimate age and the Nolla method tends to underestimate it, leading to the importance of forming regression equations adapted to the population studied. Nolla and Demirjian formulas adapted to our sample were created as a function of sex and age-group. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-23 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/109375 http://hdl.handle.net/10316/109375 https://doi.org/10.1186/1472-6831-14-160 |
url |
http://hdl.handle.net/10316/109375 https://doi.org/10.1186/1472-6831-14-160 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1472-6831 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Springer Nature |
publisher.none.fl_str_mv |
Springer Nature |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799134138142294016 |