Human Age Estimation From Tooth Cementum and Dentin

Gupta, Priya Verma; Kaur, Harsimrit; Shankari, G S M; Jawanda, Manveen Kaur; Sahi, N

doi:10.7860/jcdr/2014/7275.4221

Cited by 35 publications

(36 citation statements)

References 18 publications

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“…[9] Cementum is formed as a result of a continuous process throughout life and it has been shown to triple in thickness between ages 20 and 60 years. [17] In the present study, the thickness of cementum at the apical third of the root showed significant increase with age in both the erupted and impacted teeth [Graph 1] and [Graph 2]. Zander and Hürzeler stated that the cementum was potentially a better age-estimating tissue due to its unique location in the alveolar process.…”

Section: Discussionmentioning

confidence: 59%

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Cementum as an age determinant: A forensic view

Raju

Muddana

Nandan

et al. 2016

J Forensic Dent Sci

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Context:Forensic age estimation (FAE) defines an expertise in forensic medicine, which aims to define in the most accurate way to determine the unknown chronological age of the person involved in judicial or legal proceedings. Dental cementum is a vital tissue which demonstrates continuous apposition throughout the life of the tooth. This appositional changes of cementum helps in approximation of age inforensic investigations.Aims:To correlate age by measuring the overlap or coronal migration of thecementum at thecementoenamel junction (CEJ) and the thickness of the cementum at the apical third of the root.Settings and Design:A hundred freshly extracted teethfrom patients ranging from ages 17-55were longitudinal buccolingually ground sectioned using a mounted lathe wheel and Arkansas stone.Materials and Methods:100 freshly extracted teeth of age group ranging from 17-55 years were taken. These teeth were longitudinally ground sectioned to a thickness of 8-10μm using a mounted lathe wheel and Arkansas stone. Afterwards the teeth were examined under a light microscope using a micrometer eyepiece for measuring the overlap or coronal migration of the cementum at the CEJ and the thickness of the cementum at the apical one-third of root.Statistical Analysis:Measurements of the overlap or the coronal migration of the cementum at the CEJ and the thickness of the cementum at the apical one-third of the root are correlated with age.Results:Results of the study indicated that the cementum at the CEJ migrated coronally during theaging process in case of the impacted teeth. There is also a significant increase in the thickness of the cementum at the apical onethird of rootin the case of both the impacted and erupted teeth.Conclusion:Approximation of age by measuring overlap or coronal migration of the cementum at the CEJ and the thickness of the cementum at the apical one-third of the rootsets new alleys in FAE.

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Section: Discussionmentioning

confidence: 59%

“…However it maintains healthy periodontium by its continuous apposition. [17] Cementum is not uniform all through the length of the root; it is thinner at the cervical third and thicker at the apical third. The thickness of cementum ranges from 50 μm-150 μm.…”

Section: Discussionmentioning

confidence: 99%

Cementum as an age determinant: A forensic view

Raju

Muddana

Nandan

et al. 2016

J Forensic Dent Sci

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“…However, our results indicated that overcoming the effect of heat-induced changes on the visibility and individualization of incremental lines may not be as challenging. By following the inspiring work of Gupta et al [ 38 ], we successfully attempted to extrapolate the number of incremental lines present in the cement layer of burnt teeth. Additionally to a statistically significant correlation between chronological and estimated age, we obtained a much smaller mean absolute error than by using the ILC approach.…”

Section: Discussionmentioning

confidence: 99%

“…By assessing the thicknesses of the cementum layer and of two welldefined IL, we can theoretically estimate how many of the latter may be accommodated into the former. This approach was inspired by the work of Gupta et al [ 38 ] who assessed the total number of IL in non-burnt teeth in a similar manner. If proven to work, such extrapolation would have the advantage of bypassing the problem of heat-induced dimensional changes affecting incremental lines.…”

Section: Introductionmentioning

confidence: 99%

The circles of life: age at death estimation in burnt teeth through tooth cementum annulations

et al. 2016

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Age at death estimation in burnt human remains is problematic due to the severe heat-induced modifications that may affect the skeleton after a burning event. The objective of this paper was to assess if cementochronology, which focuses on the cementum incremental lines, is a reliable method of age estimation in burnt remains. Besides the classical approach based on the counting of incremental lines, another approach based on the extrapolation of incremental lines taking into account the cement layer thickness and the incremental line thickness was investigated. A comparison of the performance of the two techniques was carried out on a sample of 60 identified monoradicular teeth that were recently extracted at dentist offices and then experimentally burnt at two maximum temperatures (400 and 900 °C

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“…On the contrary, age estimation in adults is commonly focused on degeneration of bones throughout life and produces less accurate data (SD from pubic symphysis aging: 2.6–14.6 years) (Brooks and Suchey, ). The assessment of tooth cementum annulations (TCA) seems to be a promising method to estimate age at death in modern samples, with reported correlation coefficients ranging from 0.730 to 0.985 (Kvaal and Solheim, ; Gupta et al, ), however, further studies should be performed to standardize procedures and test the reliability of the obtained results, taking into account also individual parameters (e.g. sex, tooth position, age, periodontal diseases).…”

mentioning

confidence: 99%