The chronological age estimation of third molar mineralization of Han population in southwestern China

Qing, Maofeng; Qiu, Lihua; Gao, Zhi; Bhandari, Kishor

doi:10.1016/j.jflm.2014.03.004

Cited by 16 publications

(9 citation statements)

References 18 publications

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“…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

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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.

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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

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“…Numerous studies have evaluated differences in calcification associated with sex and race with the Demirjian 9 , 36 , 42 , 43 and Cameriere methods 44 , 45 . In the paper presented by Qing et al 36 , no statistically significant differences were observed between men and women, except for tooth 48 in stage E that occurred earlier in women.…”

Section: Discussionmentioning

confidence: 99%

“…X-rays were randomly selected. An initial evaluation revealed that all the wisdom teeth were present in the X-rays 36 and that they were of sufficient quality for the study. Radiographs of patients with chronic diseases, genetic alterations, signs of malnutrition, or of non-ASA-I status were excluded, along with those who did not meet the above inclusion criteria.…”

Section: Methodsmentioning

confidence: 99%

Demirjian and Cameriere methods for age estimation in a Spanish sample of 1386 living subjects

Melo

Ata-Ali

et al. 2022

Sci Rep

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Currently, human identification is a challenge. Migration due to war, economic crisis or other factors is frequent. The wisdom teeth are the last teeth to initiate and complete development therefore, are fundamental for determining the legal age of majority in different countries. The aim of the study is to determine the validity of two methods based on mineralisation of the third molar to predict the ages of majority of individuals in a Spanish population. Orthopantomographies of 636 men and 750 women (mean age, 16.5 years) were analysed. The Demirjian and Cameriere methods were used, and each tooth was assigned a value according to the degree of mineralisation and maturation. The level of significance used in the analyses was 5% (α = 0.05), with a power of 96.2%. The predictive ability of the Demirjian method to determine 18 years of age in the lower wisdom teeth 93%, respectively. The Cameriere method has a predictive capacity of 88%. There are no statistically significant differences between men and women. Stage H and a cut-off point of 0.08 were the guiding values for determining the age of majority of the study population. For other proposed age ranges (14 and 16 years), both methods were useful in determining the actual age of individuals, with the Demirjian method having a sensitivity of 97.5% with and Cameriere having a predictive capacity of 95%. Both methods can be used with high reliability to determine the age of individuals where reliable documentation is unavailable. Stage H with the Demirjian method and a cut-off point of 0.08 with the Cameriere method can determine the age of majority of the Spanish population. The combination of the two methods does not substantially increase predictive ability.

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“…3 All of these methods have advantages and disadvantages, for example a drawback of evaluating ossification of the hand bones is that the development of these bones is completed at about 18 years of age, which is earlier than tooth development (third molar teeth) that continues until the early twenties. 4 Furthermore, skeletal indicators can present disadvantages due to variations in bone development, which can be influenced by many factors such as nutritional and environmental effects. Tooth development, on the other hand, is controlled more by genetics rather than by environmental and nutritional factors.…”

Section: Introductionmentioning

confidence: 99%

Age Estimation Methods in Forensic Odontology

et al. 2016

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Age estimation, using forensic odontology, is a crucial step for biological identification. Currently there are many methods available to predict the age of deceased or living persons, each with varying accuracy, such as a physical examination, radiographs of the left hand, and dental assessments. Age estimation, using radiographic tooth development, has been found to be a more accurate method because it is mainly genetically influenced and as such is less likely to be affected by nutritional and environmental factors. The Demirjian et al. method for dental age estimation, using radiological techniques, has long been the most common protocol used in many populations. This method, which is based on tooth developmental changes, is a straightforward process as different stages of tooth development are clearly defined. This article aims to elaborate on the Demirjian et al. method of age estimation using tooth development as a guide.

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The chronological age estimation of third molar mineralization of Han population in southwestern China

Cited by 16 publications

References 18 publications

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

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

Demirjian and Cameriere methods for age estimation in a Spanish sample of 1386 living subjects

Age Estimation Methods in Forensic Odontology

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