Dental age assessment in a northern Chinese population

Zhai, Yue; Park, Hyun; Han, Junli; Wang, Haining; Ji, Fang; Tao, Junli

doi:10.1016/j.jflm.2015.11.011

Cited by 49 publications

(39 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Results of the present study agree with a previous one, the mean ages at A, C, D, E, F1, G, G1 developmental stage were lower for males than for females and B and F were lower for females than males ( Table 2). This result is confirmed by Zhai, Gungor, Solari, Mincer et al [8,13,16,20] Compared with the present study and similar results are seen in the mean ages of the third molar at given stages of tooth development. However, it is observed at all groups that crown-root formation earlier completed in the Turkish children and young adults.…”

Section: Discussionsupporting

confidence: 92%

“…There are various methods for establishing age based on dental tissues, including the following: morphological (dental attrition rate, tooth color changing), metrical (Carbon14 analysis, histological analysis), radio morphological (Demirjian's methods), and radiometric (Cameriere's methods, Mornstaad' methods) [3,4]. These methods are frequently applied in the fields of pediatric dentistry orthodontics and forensic science [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…Currently, the Demirjian method is the most frequently applied radiological method [8]. The advantage of the Demirjian's method includes the objective criteria describing stages of tooth development, which have been illustrated with line diagrams and radiographs very clearly [9].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Age Estimation and its Adaptation of the Turkish Children Using Modified Demirjian’s Method

Ayrancı

Sivrikaya

et al. 2017

MOJAP

View full text Add to dashboard Cite

Background: Age estimation is important in the fields of dentistry and Demirjian's method is used generally. Many different methods have been used to date and none of them meet the standards as Demirjian's method since 1973. However, this method may not be valid in some populations. The aim of this study is to evaluate the modified Demirjian's method on Turkish children and young adults. Methods:The scoring table of Demirjian has been modified to Turkish children -young adults and new dental maturity score were obtained. In addition, the effect of gender on the crown and root formation were assessed using the MannWhitney-u test and the table was created with divided into ages. The dental maturity of 848 healthy children and young adults (445 females 403 males) aged between 10 and 19 years were studied with dental panoramic tomograms. Two raters evaluated the right third mandibular molar according to development stages of Modified Demirjian's. Results:The crown and root formation were statistically significant in the 17.0-17.9 age group between females and males (P = 006). Descriptive analysis showed that F stage is the shortest period. Modified Demirjian method is adapted to the Turkish population. Conclusion:It is demonstrated that age estimation in Turkish children and young adults will be performed easier with Modified Demirjian method adapted to the Turkish population.

show abstract

Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Age Estimation and its Adaptation of the Turkish Children Using Modified Demirjian’s Method

Ayrancı

Sivrikaya

et al. 2017

MOJAP

View full text Add to dashboard Cite

show abstract

“…Previously, several authors studied the application of DS system and another approach for estimating the age, including the age of majority 20,[52][53][54][55][56][57][58][59][60][61] . For estimating the age of majority, Mincer et al.…”

Section: Discussionmentioning

confidence: 99%

Validation of third molar maturity index (I 3M ) for discrimination of juvenile/adult status in South Indian population

Balla

Galić

Karunakar

et al. 2017

Journal of Forensic and Legal Medicine

View full text Add to dashboard Cite

Abstract:Deliberate falsification of age was considered to be one of the main reasons for forensic age estimation of the living individuals. This posed to be a challenging task during criminal and legal proceedings, and ultimate care must be taken not to classify juveniles as adults. Third molars are the only developing teeth during late adolescence and early adulthood. Our study was designed to analyze the usefulness of the third molar maturity index (I3M) specific cut-off value (I3M <0.08) to discriminate adults (≥ 18 years) and juveniles (<18 years) in South Indian children.216 panoramic radiographs (114 females and 102 males) of living subjects aged between 14 and 21 years were analyzed. Our results demonstrated high sensitivity (83.3% and 90.2%) and specificity (98.3 % and 95.1%) for females and males respectively. The positive likelihood ratios of being adult were 50.00 and 18.35 while the negative likelihood ratios were 0.17 and 0.10 in females and males respectively. The estimated posttest probability was 98.0% in females and 94.8% in males. The obtained results showed that the specific cut-off value of I3M <0.08 may be a useful additional tool in discrimination of individuals who are around 18 years of age.

show abstract

“…The reason why Tooth Development Stages (TDSs) can be used for age estimation is because the timing of all stages of tooth development follows a sequential and organised pattern, from the initial calcification of enamel until complete root formation. TDSs have been extensively studied since 1960s and several methods of dental age estimation such as the Demirjian’s method [9, 10], Nolla’s method [11], and Cameriere’s method [12, 13] have been developed. In particular, the Demirjian’s method [9] proved to be effective and reliable [14, 15].…”

Section: Introductionmentioning

confidence: 99%

Northern Chinese dental ages estimated from southern Chinese reference datasets closely correlate with chronological age

Wong

Wen

Jayaraman

et al. 2016

Heliyon

View full text Add to dashboard Cite

While northern and southern Chinese are genetically correlated, there exists notable environmental differences in their living conditions. This study aimed to evaluate validity of the southern Chinese reference dataset for dental age estimation applied to northern Chinese. Dental panoramic tomographs of 437 northern Chinese aged 3 to 21 years were analysed. All the left maxillary and mandibular permanent teeth plus the 2 third molars on the right side were scored based on Demirjian’s classification of tooth development stages. Mean and standard error of dental age were obtained for each tooth development stage, followed by random effect meta-analysis for mean dental age estimation. Validity of the method was examined through measures of agreement (95% limits of agreement, standard error of measurement, and Lin’s concordance correlation coefficient) and measure of reliability (Intraclass correlation coefficient). On average, the estimated dental age overestimated chronological age by only around 1 month in both females and males. The Intraclass correlation coefficient values were 0.99 for both sexes, suggesting excellent reliability of the method. Reference dataset for dental age estimation developed on the basis of southern Chinese was applicable for use among the northern Chinese.

show abstract

Dental age assessment in a northern Chinese population

Cited by 49 publications

References 21 publications

Age Estimation and its Adaptation of the Turkish Children Using Modified Demirjian’s Method

Age Estimation and its Adaptation of the Turkish Children Using Modified Demirjian’s Method

Validation of third molar maturity index (I 3M ) for discrimination of juvenile/adult status in South Indian population

Northern Chinese dental ages estimated from southern Chinese reference datasets closely correlate with chronological age

Contact Info

Product

Resources

About