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Age estimation based on Kvaal's technique using digital panoramic radiographs

INTRODUCTION: Age estimation is important for administrative and ethical reasons and also because of legal consequences. Dental pulp undergoes regression in size with increasing age due to secondary dentin deposition and can be used as a parameter of age estimation even beyond 25 years of age. Kvaal...

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Autores principales: Mittal, Samta, Nagendrareddy, Suma Gundareddy, Sharma, Manisha Lakhanpal, Agnihotri, Poornapragna, Chaudhary, Sunil, Dhillon, Manu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4970414/
https://www.ncbi.nlm.nih.gov/pubmed/27555738
http://dx.doi.org/10.4103/0975-1475.186378
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author Mittal, Samta
Nagendrareddy, Suma Gundareddy
Sharma, Manisha Lakhanpal
Agnihotri, Poornapragna
Chaudhary, Sunil
Dhillon, Manu
author_facet Mittal, Samta
Nagendrareddy, Suma Gundareddy
Sharma, Manisha Lakhanpal
Agnihotri, Poornapragna
Chaudhary, Sunil
Dhillon, Manu
author_sort Mittal, Samta
collection PubMed
description INTRODUCTION: Age estimation is important for administrative and ethical reasons and also because of legal consequences. Dental pulp undergoes regression in size with increasing age due to secondary dentin deposition and can be used as a parameter of age estimation even beyond 25 years of age. Kvaal et al. developed a method for chronological age estimation based on the pulp size using periapical dental radiographs. There is a need for testing this method of age estimation in the Indian population using simple tools like digital imaging on living individuals not requiring extraction of teeth. AIMS AND OBJECTIVES: Estimation of the chronological age of subjects by Kvaal's method using digital panoramic radiographs and also testing the validity of regression equations as given by Kvaal et al. MATERIALS AND METHODS: The study sample included a total of 152 subjects in the age group of 14-60 years. Measurements were performed on the standardized digital panoramic radiographs based on Kvaal's method. Different regression formulae were derived and the age was assessed. The assessed age was then correlated to the actual age of the patient using Student's t-test. RESULTS: No significant difference between the mean of the chronological age and the estimated age was observed. However, the values of the mean age estimated by using regression equations as given previously in the study of Kvaal et al. significantly underestimated the chronological age in the present study sample. CONCLUSION: The results of the study give an inference for the feasibility of this technique by calculation of regression equations on digital panoramic radiographs. However, it negates the applicability of same regression equations as given by Kvaal et al. on the study population.
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spelling pubmed-49704142016-08-23 Age estimation based on Kvaal's technique using digital panoramic radiographs Mittal, Samta Nagendrareddy, Suma Gundareddy Sharma, Manisha Lakhanpal Agnihotri, Poornapragna Chaudhary, Sunil Dhillon, Manu J Forensic Dent Sci Original Article INTRODUCTION: Age estimation is important for administrative and ethical reasons and also because of legal consequences. Dental pulp undergoes regression in size with increasing age due to secondary dentin deposition and can be used as a parameter of age estimation even beyond 25 years of age. Kvaal et al. developed a method for chronological age estimation based on the pulp size using periapical dental radiographs. There is a need for testing this method of age estimation in the Indian population using simple tools like digital imaging on living individuals not requiring extraction of teeth. AIMS AND OBJECTIVES: Estimation of the chronological age of subjects by Kvaal's method using digital panoramic radiographs and also testing the validity of regression equations as given by Kvaal et al. MATERIALS AND METHODS: The study sample included a total of 152 subjects in the age group of 14-60 years. Measurements were performed on the standardized digital panoramic radiographs based on Kvaal's method. Different regression formulae were derived and the age was assessed. The assessed age was then correlated to the actual age of the patient using Student's t-test. RESULTS: No significant difference between the mean of the chronological age and the estimated age was observed. However, the values of the mean age estimated by using regression equations as given previously in the study of Kvaal et al. significantly underestimated the chronological age in the present study sample. CONCLUSION: The results of the study give an inference for the feasibility of this technique by calculation of regression equations on digital panoramic radiographs. However, it negates the applicability of same regression equations as given by Kvaal et al. on the study population. Medknow Publications & Media Pvt Ltd 2016 /pmc/articles/PMC4970414/ /pubmed/27555738 http://dx.doi.org/10.4103/0975-1475.186378 Text en Copyright: © Journal of Forensic Dental Sciences http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Original Article
Mittal, Samta
Nagendrareddy, Suma Gundareddy
Sharma, Manisha Lakhanpal
Agnihotri, Poornapragna
Chaudhary, Sunil
Dhillon, Manu
Age estimation based on Kvaal's technique using digital panoramic radiographs
title Age estimation based on Kvaal's technique using digital panoramic radiographs
title_full Age estimation based on Kvaal's technique using digital panoramic radiographs
title_fullStr Age estimation based on Kvaal's technique using digital panoramic radiographs
title_full_unstemmed Age estimation based on Kvaal's technique using digital panoramic radiographs
title_short Age estimation based on Kvaal's technique using digital panoramic radiographs
title_sort age estimation based on kvaal's technique using digital panoramic radiographs
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4970414/
https://www.ncbi.nlm.nih.gov/pubmed/27555738
http://dx.doi.org/10.4103/0975-1475.186378
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