Title: A Comparative Study of Variations in Estimated Age between maxillary and mandibular teeth of an individual using TCA Method
Authors: Dr Anila Karunakaran, Dr Leena Philipose, Dr Sivaprasad K K
DOI: http://dx.doi.org/10.18535/jmscr/v4i6.02
Human age estimation is of key importance in any forensic investigation. Assessment of age by counting the total cemental annulations is well documented as a reliable method for this purpose with variations of only 2-3 years. This study is to find out if the accuracy of the estimation varies between maxillary and mandibular teeth of an individual. A maxillary and mandibular tooth each is collected from 50 patients. Longitudinal ground sections are prepared and mounted on glass slides using DPX. The image of midroot area is captured using a research microscope.and transferred to a computer monitor. Age is assessed using image analysis software. The variations from actual age of each tooth is noted. The variations of individual maxillary teeth are compared with those of corresponding mandibular teeth and significance is calculated using statistical analysis. In our study no significant difference was noted between the variations obtained from maxillary and those from mandibular teeth. Key words: Age estimation, cemental annulations, maxillary teeth, mandibular teeth, variations 1. Avadhani A, Tupkari J V, Khambaty A, Sardar M. Cementum annulations and age determination. J Forensic Dent Sci 2009;1:73-6 2. Wittwer-Backofen U. Age estimation using tooth cementum annulation.Methods Mol Biol. 2012;915:129-43. 3. Dias PE, Beaini TL Melani RF . Age Estimation From Dental Cementum Incremental Lines and Periodontal Disease J Forensic Odontostomatol 2010;28:1:13-21 4. Pooja Aggarwal ,Susmita Saxena Puja Bansal . Incremental Lines in root cementum of human teeth: An approach to their role in age estimation using polarizing microscopy IJDR 2008 Vol 19 Issue 4 Page 326-330 5. Priya Gupta, Harshaminder Kaur, Madhu Shankari G.S , Manveen Kaur Jawand, Nita Sahi. Human Age Estimation from Tooth Cementum and Dentine. Journal of clinical and Diagnostic Rresearch 2014 April Vol -8 (4): ZC07-ZC10 6. Renz H, Schaefer V, Duschner H, Radlanski RJ. Incremental Lines in Root Cementum of Human Teeth: An Approach to their Ultrastructural nature by microscopy. Adv. Dent. Res. 1997; 11: 472-7. 7. Leiberman DE. The biological basis for seasonal increments in dental cementum and their application to archaeological research. J Archaeo Sc 1994;21:525-39. 8. Wada K, Ohtaishi N, Hachiya N. Determination of age in the Japanese monkey from growth layers in the dental cementum. Primates 1978; 19:775-84. 9. Gasaway WC, Harkness DB, Rausch RA. Accuracy of Moose Age Determinations from Incisor Cementum Layers, J Wldlf Mngmt 1978;42:558-63. 10. Lindskog S. Formation of intermediate cementum I: early mineralisation of aprismatic enamel and intermediate cementum in monkey. J Craniofacial Gen and Dev Biol. 1982 a;2:147-60 11. Stoneberg RP, Jonkel CJ. Age Determination of Black Bears by Cementum Layers. ,J Wldlf Mngmt 1966 ;30:411-4. 12. Stott GG, Sis RF, Levy BM. Cementum annulation as an age criterion in Forensic Dentistry. J Dent Res 1982; 61:814-7. 13. Condon et al. Cementum Annulation and Age Determination in Homo sapiens.II. Estimates and Accuracy. Am J Phys Anthropol 1986; 71:321-330.Abstract
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