Estimation of age based on tooth cementum annulations using three different microscopic methods

Pundir, Siddharth; Saxena, Susmita; Aggrawal, Pooja

doi:10.4103/0974-2948.60379

Cited by 21 publications

(24 citation statements)

References 2 publications

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“…TCA incremental bands under the lens of a light microscope, are revealed as alternating dark and translucent (see Grosskopf & McGlynn, ; Kagerer & Grupe, ; Stott, Sis, & Levy, ; Wittwer‐Backofen, ; Wittwer‐Backofen, Gampe, & Vaupel, ) (Figure ). The appositional growth of each of the two bands is driven by a robust circannual (literally, about a year) biological rhythm, which has been confirmed in many studies in population samples of known‐age individuals from different ethnic groups (Aggarwal, Saxena, & Bansal, ; Avadhani, Tupkari, Khambaty, & Sardar, ; Bojarun, Jankauskas, & Garmus, ; Broucker, Colard, Penel, Blondiaux, & Naji, ; Charles, Condon, Cheverud, & Buikstra, ; Dias, Beaini, & Melani, ; Gocha & Schutkowski, ; Gupta, Kaur, Shankari, Jawanda, & Sahi, ; Kagerer & Grupe, ; Kasetty, Rammanohar, & Raju Ragavendra, ; Meinl et al, ; Naji et al, ; Obertová & Francken, ; Pundir, Saxena, & Aggrawal, ; Stott et al,; Wittwer‐Backofen et al, ). As such, the close relationship between TCA estimated age and CA is not disputed.…”

Section: Tooth Cementum Annulationsmentioning

confidence: 64%

Differences between biological and chronological age‐at‐death in human skeletal remains: A change of perspective

Couoh

2017

American J Phys Anthropol

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TCA can be used to estimate CA and its differences with BA, being less than 10 years, are similar to those found in living populations. Differences between CA and BA are due to intra-population variability, which could be the consequence of individual differences in aging. More research is needed to have confidence that under- and overestimations of BA are indicators of aging variability at the level of the individual.

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Section: Tooth Cementum Annulationsmentioning

confidence: 64%

Differences between biological and chronological age‐at‐death in human skeletal remains: A change of perspective

Couoh

2017

American J Phys Anthropol

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“…(2009) in their study concluded that among the methods of counting incremental lines by various types of microscopy, phase contrast microscopy was more reliable for age estimation than polarizing microscope. [ 22 34 ] Kaur et al . (2008) found that the age estimated using polarizing microscopy showed a strong correlation with the chronological age of the individual.…”

Section: Discussionmentioning

confidence: 99%

Estimation of age based on tooth cementum annulations: A comparative study using light, polarized, and phase contrast microscopy

Kaur¹,

Astekar

Singh

et al. 2015

J Forensic Dent Sci

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Context:The identification of living or deceased persons using unique traits and characteristics of the teeth and jaws is a cornerstone of forensic science. Teeth have been used to estimate age both in the young and old, as well as in the living and dead. Gradual structural changes in teeth throughout life are the basis for age estimation. Tooth cementum annulation (TCA) is a microscopic method for the determination of an individual's age based on the analysis of incremental lines of cementum.Aim:To compare ages estimated using incremental lines of cementum as visualized by bright field microscopy, polarized microscopy, and phase contrast microscopy with the actual age of subject and to determine accuracy and feasibility of the method used.Materials and Methods:Cementum annulations of 60 permanent teeth were analyzed after longitudinal ground sections were made in the mesiodistal plane. The incremental lines were counted manually using a light, polarized and phase contrast microscopy. Ages were estimated and then compared with the actual age of individual.Statistical Analysis:Analysis of variance (ANOVA), Student's t-test, the Pearson product-moment corre (PPMCC) and regression analysis were performed.Results:PPMCC value r = 0.347, 0.542 and 0.989 were obtained using light, polarized and phase contrast microscopy methods respectively.Conclusion:It was concluded that incremental lines of cementum were most clearly visible under a phase contrast microscope, followed by a polarized microscope, and then a light microscope when used for age estimation.

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“…dentistry section Many authors have described the contribution and importance of cementum in studies that used one or multiple dental parameters [9]. Cementum is formed as a result of a continuous process throughout life and it has been shown to triple in thickness between the ages of 20 and 60 years [10]. It was hypothesized that since cemental annulations have been observed in all mammalian genera which have been studied, they may also be found in humans and may be used to determine age in that genus.…”

Section: Introductionmentioning

confidence: 99%

Human Age Estimation From Tooth Cementum and Dentin

Gupta

Kaur²,

Shankari

et al. 2014

JCDR

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Estimation of age based on tooth cementum annulations using three different microscopic methods

Cited by 21 publications

References 2 publications

Differences between biological and chronological age‐at‐death in human skeletal remains: A change of perspective

Differences between biological and chronological age‐at‐death in human skeletal remains: A change of perspective

Estimation of age based on tooth cementum annulations: A comparative study using light, polarized, and phase contrast microscopy

Human Age Estimation From Tooth Cementum and Dentin

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