Secondary dentine as a sole parameter for age estimation: Comparison and reliability of qualitative and quantitative methods among North Western adult Indians

Arora, Jasbir S.; Talwar, Indu; Sahni, Daisy; Rattan, Vidya

doi:10.1016/j.ejfs.2016.05.006

Cited by 23 publications

(19 citation statements)

References 27 publications

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“…While the differences between the left and right canine P/T ratios in the same dog were generally small, in practice, the assignment of a dog of unknown age to an age class should be based on measurements on both canine teeth whenever possible, to identify those dogs that are close to the transition of two age classes and to exclude unilateral aberrant values. The rate of dentin deposition is a physiologic process that not only depends on tooth type, location and age (Arora et al., 2016; Marron et al., 2017; Philippas, 1961) but is also subject to individual variation and can be influenced by environmental effects or trauma. Comparing both sides can reveal different rates of dentine deposition caused by unilateral local stress or (minor) trauma (Hale, 2020; Kuttler, 1959; Yu & Abbott, 2007).…”

Section: Discussionmentioning

confidence: 99%

Age estimation in young dogs by radiographic assessment of the canine pulp cavity/tooth width ratio

Broeck

Stock

Vermeiren

et al. 2022

Anat Histol Embryol

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Age determination in dogs is important in many disciplines. For instance, in veterinary clinical practice, knowledge of the exact age of a dog can contribute to establishing a (better) differential diagnosis, prognosis and treatment (Gesierich et al., 2015;Tobias et al., 2000).In zooarchaeology, estimating the age at death of dogs on (bony) remains can give clues in understanding the process of their domestication and the roles dogs played in past societies (Nomokonova et al., 2020). Forensic age estimation, particularly of dogs involved in trade, is yet another application that is gaining more and more importance (Modina et al., 2019;Broeck & Cornillie, 2020). Finally, the adoption of foreign stray dogs is becoming very popular in many Western European countries (Norman et al., 2020). Knowledge of their age can be important for population management (FAO, 2014) and in assessing trainability and longevity after adoption (Tobias et al., 2000;Wells & Hepper, 2000).The most commonly advised age estimation methods for living dogs are the inspection of dental eruption in puppies and the determination of the epiphysial union of the long bones in grow-

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Section: Discussionmentioning

confidence: 99%

Age estimation in young dogs by radiographic assessment of the canine pulp cavity/tooth width ratio

Broeck

Stock

Vermeiren

et al. 2022

Anat Histol Embryol

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“…Considering the influence of external conditions on the cementum deposition, care should be taken while using ICL as a parameter of age estimation in adults. Also, care should be taken while applying these results with other populations as diet, masticatory habits, nutrition, temperature, and ultraviolet light may cause variation in cementogenesis, which further changes the appearance of the incremental lines [33].…”

Section: Discussionmentioning

confidence: 99%

Reliability of dentin translucency and incremental cemental lines in age estimation using light and stereomicroscopes: A comparative study

Shylaja

Manay

Ganji

et al. 2022

Journal of Forensic Sciences

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Age estimation of the dead and human remains has been challenging in forensic medicine, both in mass disasters and criminal investigations. There are several approaches to accurately evaluate age, each with its own benefits and drawbacks. Dentine translucency (DT) and incremental cemental lines (ICL) have often been used for age estimation in living adults and unknown skeletal remains. We attempted to estimate age using both these parameters and compare accuracy of age estimated using these parameters in a larger sample. A total of 300 extracted single-rooted permanent teeth were collected from the patients aged between 15 and 75 years. Longitudinal ground sections in the buccolingual direction of 250 μm thickness were prepared, and the images obtained were subsequently analyzed to measure the length of DT using the ImageJ software program. In addition, the number of ICL were also counted in each tooth section. The age of the individuals was estimated using both methods individually, and the results have shown that both parameters have shown reliable age estimates in the middle age groups. However, there was overestimation of age up to 10.6 years in the younger age group using DT and an underestimation of age up to 13.4 years in the older age group with ICL. Pearson's correlation statistics revealed a strong positive and statistically significant correlation of both the parameters with the chronological age (0.973 and 0.917). To conclude, the method using the ICL should be preferred due to the relatively higher number of errors (<±3 years) which were considered excellent. K E Y W O R D Sadults, dental age estimation, dentine translucency, incremental cemental lines Highlights• DT and ICL were used to estimate the age using a stereomicroscope, and their reliability was compared.

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“…It is mainly formed on the roof and floor of the pulp chamber, resulting in an asymmetrical decrease in its shape and size. Consequently, the main dentine-related alterations take place in the pulp chamber (Arora et al 2016). Additionally, the pulp chamber shows the best pulp dentin distinction in CBCT (Krasner and Rankow 2004).…”

Section: Discussionmentioning

confidence: 99%

The accuracy of age estimation from pulp chamber/crown volume ratio of canines obtained by cone beam computed tomography images: an Egyptian study

Elgazzar

Elboraey

El-Sarnagawy

2020

Egypt J Forensic Sci

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Background Globally, the need for an accurate and valid method for age estimation in adults still exists. The aging process is associated with secondary dentine deposition that reduces the volume of teeth pulp. Therefore, dental age could be recognized from the volume of pulp cavity. The aim of this study was to assess the accuracy and validity of pulp chamber/crown volume ratio of maxillary and mandibular canines in estimating age using cone beam computed tomography (CBCT) images in a sample of the Egyptian population. Results There were significant strong negative correlations between age and each of the maxillary pulp chamber volume (PCV), mandibular PCV, maxillary pulp chamber/crown volume (PCV/CV) ratio, and mandibular PCV/CV ratio (p < 0.001). Furthermore, no significant differences were detected between both sexes regarding the mean maxillary and mandibular PCV and PCV/CV ratios (p > 0.05). The best fit regression model for age prediction was as follows: age (years) = 70.21 − 784.0x maxillary PCV/CV ratio − 1.66x maxillary PCV. The proposed model showed good power of prediction (R2 adjusted = 0.951). Additionally, the model was validated on an independent sample of 100 CBCT images with a root mean squared error (RMSE) of 2.86 years. Conclusion The obtained valid regression formula in this study can serve as a reliable tool for age estimation in Egyptians. This formula should be further validated on a larger sample size of the Egyptian population that considers more steady age distribution.

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Secondary dentine as a sole parameter for age estimation: Comparison and reliability of qualitative and quantitative methods among North Western adult Indians

Cited by 23 publications

References 27 publications

Age estimation in young dogs by radiographic assessment of the canine pulp cavity/tooth width ratio

Age estimation in young dogs by radiographic assessment of the canine pulp cavity/tooth width ratio

Reliability of dentin translucency and incremental cemental lines in age estimation using light and stereomicroscopes: A comparative study

The accuracy of age estimation from pulp chamber/crown volume ratio of canines obtained by cone beam computed tomography images: an Egyptian study

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