Age estimation with cemental incremental lines in normal and periodontally diseased teeth using phase contrast microscope: an original research

Abstract Background Age estimation is an important factor in forensic science for human identification. Teeth are considered to play a vital role as they resist decomposition at death unlike other tissues. This resistance and the gradual structural changes that take place throughout the life of an i...

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Autores principales:	Ameena Sultana, Heena Zainab, Pramod Jahagirdar, Deepa Hugar, Shaimaa
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Age estimation Cementum Forensic odontology Microscope Law in general. Comparative and uniform law. Jurisprudence K1-7720 Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/5f3a4478d69f474fa52a040f5e8bc29d
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spelling	oai:doaj.org-article:5f3a4478d69f474fa52a040f5e8bc29d2021-11-28T12:09:34ZAge estimation with cemental incremental lines in normal and periodontally diseased teeth using phase contrast microscope: an original research10.1186/s41935-021-00254-22090-5939https://doaj.org/article/5f3a4478d69f474fa52a040f5e8bc29d2021-11-01T00:00:00Zhttps://doi.org/10.1186/s41935-021-00254-2https://doaj.org/toc/2090-5939Abstract Background Age estimation is an important factor in forensic science for human identification. Teeth are considered to play a vital role as they resist decomposition at death unlike other tissues. This resistance and the gradual structural changes that take place throughout the life of an individual have made teeth useful indicators for age estimation. Dental cementum shows continuous apposition throughout the life of an individual. Tooth cemental annulation is a microscopic method for the determination of an individual’s age based on the analysis of incremental lines of cementum. Light microscopy as well as specialized microscopic methods have been employed to enhance the assessment of the cemental annulations. Periodontal disease is the most common dental problem affecting millions of people. Assessing the efficiency of the tooth cemental annulations method in periodontally diseased teeth is an important requisite. This study aims at assessing and evaluating the tooth cemental annulations in normal and periodontally diseased teeth using phase contrast microscopic method for age determination. Results A total of 60 teeth were included in the study and out of which 30 teeth were normal (sound teeth without any associated pathologies) and 30 were periodontally involved teeth respectively. Longitudinal ground sections were prepared and observed under phase contrast microscope. Measurements were made using an image analyzer software. The total width of the cementum was divided by the distance between two incremental lines. The eruption age of the tooth was then added to this to obtain the chronologic age for each individual. The results in the present study showed that tooth cemental annulations are applicable to periodontally sound teeth as well as in periodontally diseased teeth. There was no significant difference of estimated age from the actual age in both periodontally sound and periodontally diseased teeth. Normal teeth showed a reliability value of 92% and periodontally compromised teeth showed 96% respectively. There was no substantial influence of periodontal health on the estimated age. Conclusions The study concludes that the use of phase contrast microscopy in conjunction with image enhancement procedures improves the accuracy of age estimation and may serve as a reliable aid in forensic identification.Ameena SultanaHeena ZainabPramod JahagirdarDeepa HugarShaimaaSpringerOpenarticleAge estimationCementumForensic odontologyMicroscopeLaw in general. Comparative and uniform law. JurisprudenceK1-7720Medicine (General)R5-920ENEgyptian Journal of Forensic Sciences, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Age estimation Cementum Forensic odontology Microscope Law in general. Comparative and uniform law. Jurisprudence K1-7720 Medicine (General) R5-920
spellingShingle	Age estimation Cementum Forensic odontology Microscope Law in general. Comparative and uniform law. Jurisprudence K1-7720 Medicine (General) R5-920 Ameena Sultana Heena Zainab Pramod Jahagirdar Deepa Hugar Shaimaa Age estimation with cemental incremental lines in normal and periodontally diseased teeth using phase contrast microscope: an original research
description	Abstract Background Age estimation is an important factor in forensic science for human identification. Teeth are considered to play a vital role as they resist decomposition at death unlike other tissues. This resistance and the gradual structural changes that take place throughout the life of an individual have made teeth useful indicators for age estimation. Dental cementum shows continuous apposition throughout the life of an individual. Tooth cemental annulation is a microscopic method for the determination of an individual’s age based on the analysis of incremental lines of cementum. Light microscopy as well as specialized microscopic methods have been employed to enhance the assessment of the cemental annulations. Periodontal disease is the most common dental problem affecting millions of people. Assessing the efficiency of the tooth cemental annulations method in periodontally diseased teeth is an important requisite. This study aims at assessing and evaluating the tooth cemental annulations in normal and periodontally diseased teeth using phase contrast microscopic method for age determination. Results A total of 60 teeth were included in the study and out of which 30 teeth were normal (sound teeth without any associated pathologies) and 30 were periodontally involved teeth respectively. Longitudinal ground sections were prepared and observed under phase contrast microscope. Measurements were made using an image analyzer software. The total width of the cementum was divided by the distance between two incremental lines. The eruption age of the tooth was then added to this to obtain the chronologic age for each individual. The results in the present study showed that tooth cemental annulations are applicable to periodontally sound teeth as well as in periodontally diseased teeth. There was no significant difference of estimated age from the actual age in both periodontally sound and periodontally diseased teeth. Normal teeth showed a reliability value of 92% and periodontally compromised teeth showed 96% respectively. There was no substantial influence of periodontal health on the estimated age. Conclusions The study concludes that the use of phase contrast microscopy in conjunction with image enhancement procedures improves the accuracy of age estimation and may serve as a reliable aid in forensic identification.
format	article
author	Ameena Sultana Heena Zainab Pramod Jahagirdar Deepa Hugar Shaimaa
author_facet	Ameena Sultana Heena Zainab Pramod Jahagirdar Deepa Hugar Shaimaa
author_sort	Ameena Sultana
title	Age estimation with cemental incremental lines in normal and periodontally diseased teeth using phase contrast microscope: an original research
title_short	Age estimation with cemental incremental lines in normal and periodontally diseased teeth using phase contrast microscope: an original research
title_full	Age estimation with cemental incremental lines in normal and periodontally diseased teeth using phase contrast microscope: an original research
title_fullStr	Age estimation with cemental incremental lines in normal and periodontally diseased teeth using phase contrast microscope: an original research
title_full_unstemmed	Age estimation with cemental incremental lines in normal and periodontally diseased teeth using phase contrast microscope: an original research
title_sort	age estimation with cemental incremental lines in normal and periodontally diseased teeth using phase contrast microscope: an original research
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/5f3a4478d69f474fa52a040f5e8bc29d
work_keys_str_mv	AT ameenasultana ageestimationwithcementalincrementallinesinnormalandperiodontallydiseasedteethusingphasecontrastmicroscopeanoriginalresearch AT heenazainab ageestimationwithcementalincrementallinesinnormalandperiodontallydiseasedteethusingphasecontrastmicroscopeanoriginalresearch AT pramodjahagirdar ageestimationwithcementalincrementallinesinnormalandperiodontallydiseasedteethusingphasecontrastmicroscopeanoriginalresearch AT deepahugar ageestimationwithcementalincrementallinesinnormalandperiodontallydiseasedteethusingphasecontrastmicroscopeanoriginalresearch AT shaimaa ageestimationwithcementalincrementallinesinnormalandperiodontallydiseasedteethusingphasecontrastmicroscopeanoriginalresearch
_version_	1718408141963526144

Age estimation with cemental incremental lines in normal and periodontally diseased teeth using phase contrast microscope: an original research

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