Age estimation from physiological changes of teeth: A reliable age marker?

Singh, Nishant; Grover, Neeraj; Puri, Navin; Singh, Sanjeet; Arora, Swati

doi:10.4103/0975-1475.132541

Cited by 18 publications

(7 citation statements)

References 10 publications

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“…The mean values of the buccolingual dimension of the maxillary canines on the right and left sides (13,23) were statistically greater in males than females (P=0.04, P=0.03) and had the greatest percentage of sexual dimorphism (4. 08% and 5.26%, respectively).…”

Section: Resultsmentioning

confidence: 96%

Sexual Dimorphism in the Buccolingual Dimensions of Permanent Anterior Teeth in the Young Iranian Population

AKAD,

SOCOLOV,

COVALI

et al. 2023

Maedica

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Objective: Evaluation of sexual dimorphism is a crucial concern for anthropologists, forensic scientists, and archaeologists. Teeth have been used as an alternative tool to determine sex in forensic anthropology. However, it is necessary to use data specific to a particular population, as different populations exhibit varying degrees of sexual dimorphism. This study aimed to determine the sexual dimorphism in the buccolingual dimensions of permanent anterior teeth in the young Iranian population.Materials and methods: A total of 100 students (50 females and 50 males) participated in the current study. A total of 1200 permanent anterior teeth were examined. The buccolingual dimension of all anterior teeth was measured using Vernier Calipers with a calibration of 0.01 mm. Data were analyzed using an independent sample T-test and paired sample T-test, and a P-value of less than 0.05 was considered statistically significant. Results:The mean values of the buccolingual dimension of the maxillary canines on the right and left sides (13,23) were statistically greater in males than females (P=0.04, P=0.03) and had the greatest percentage of sexual dimorphism (4. 08% and 5.26%, respectively).Conclusions: The buccolingual dimension of Iranian canines could be used as a reliable material to identify gender in forensic studies, and the degree of sexual dimorphism varies among different populations. Therefore, it is essential to use the relevant data samples for each population. It was concluded that Europeans had the greatest amount of sexual differences in the anterior teeth, while Iranians had the least amount of sexual dimorphism in the anterior teeth.

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Section: Resultsmentioning

confidence: 96%

Sexual Dimorphism in the Buccolingual Dimensions of Permanent Anterior Teeth in the Young Iranian Population

AKAD,

SOCOLOV,

COVALI

et al. 2023

Maedica

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“…Age determination serves numerous purposes, such as determining the age of a corpse in a criminal case or a severely damaged body after a natural disaster [ 39 ]. Age estimation can nullify false age claims to avoid prison sentences.…”

Section: Discussionmentioning

confidence: 99%

Maintenance of dental records and awareness of forensic odontology among pakistani dentists: a mixed-method study with implications for dental data repository

Baqai,

Zaidi,

Baig

et al. 2023

BMC Oral Health

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Objective Dental records and forensic odontology play an important role in both healthcare and the legal system, aiding in personalized patient care, human identification, and legal proceedings. This study aims to investigate dental record-keeping practices and assess the awareness of forensic odontology among Pakistani dentists over 12 months. This study aims to collect data from 500 dentists, identify areas for enhancement, and develop a strategic action plan to improve record-keeping quality and forensic odontology application, culminating in a comprehensive dental data repository to support legal and criminal investigations in Pakistan. Methodology This study employed a mixed-method approach conducted at Hamdard Dental College from January to March 2023. The quantitative phase involved distributing questionnaires to 463 dentists, chosen through stratified random sampling. Out of these, 413 responded, yielding an 86% response rate. These questionnaires focused on dental record-keeping practices and dentists’ awareness of forensic odontology. Subsequently, based on the questionnaire results, face-to-face interviews were conducted with 20 purposively selected dentists to gain deeper insight into the challenges and potential solutions. Data from both phases were integrated and analyzed accordingly. Results The study included 413 participants, mainly females (79%), with ages ranging from 27 to 65 years and an average age of 46.4 years. Most dentists had 5–20 years of work experience (53%), and most (87.4%) were practicing in private clinical settings. All the dentists generated medical and dental records, but the duration of their record-keeping varied, with some maintaining them for up to a year and others for two years or longer. Five themes were generated from the qualitative content analysis. These themes were dentists’ perceptions, barriers and challenges, knowledge and awareness, and improvement strategies. Conclusion Our study revealed that local practitioners in Pakistan exhibit subpar practices in dental record-keeping and maintenance of patient history, irrespective of whether they use a digital or traditional file-based system. Even though dentists are cognizant of the importance of record-keeping, they do not actively maintain comprehensive records. This suggests the need for improved training and system improvements to address the gaps in record-keeping practices.

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“…For comparing the Demirjian, Nolla and Willems methods, the radiographs with the presence of seven permanent mandibular teeth on the left side are evaluated by observing the mineralization of these teeth and the age is estimated. 20 Exclusion criteria: Radiographs where the date of birth and sex were not registered; poor-quality radiographs or image deformity affecting left mandibular permanent tooth that did not allow proper visualization of the degree of dental development; hypodontia of permanent teeth, or radiographs from children with systematic diseases, syndromes, congenital anomalies like cleft lip and cleft palate or dental abnormalities, permanent tooth extraction (except for the third molar), impacted or ankylosed teeth the use of orthodontic appliances or a history of dental trauma or injury to face and gross dental pathology.…”

Section: Study Samplementioning

confidence: 99%

Dental age estimation and accuracy assessment by Demirjian, Nolla and Willems methods in Nepalese children for predicting the chronological age

et al. 2021

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Introduction: Dental age estimation has been performed by numerous methods worldwide. This study was done to evaluate and compare the validity and accuracy of dental age estimation by Demirjian, Nolla and Willems methods in Nepalese children. Materials and Method: A comparative cross sectional study was conducted on 280 orthopantomography of Nepalese children aged 5-14 years in Kantipur Dental College from December 2020 to September 2021. Dental age was calculated by three methods and difference with chronological age was examined. Descriptive statistics were presented as mean ± SD and median (range). Differences in paired data of chronological and dental ages were examined using Wilcoxon signed rank test. Spearman’s correlation coefficient was used for comparing chronological and dental ages. Regression analysis was performed to derive equation for predicting chronological age from dental age. Results: An underestimation of dental age was observed with Demirjian (-1.17 years), Nolla (-1.06 years) and Willems (-1.32 years) methods which was statistically significant and also across both genders (p<0.001). However, chronological age was found to be highly correlated with dental ages estimated using Demirjian (σ=0.930; p<0.001), Nolla (σ=0.939; p<0.001) and Willems (σ=0.947; p<0.001) methods. Linear regression analysis conducted to predict chronological age showed total variance of 80.8%, 87.7% and 89.5% in boys and 81.7%, 87.7% and 88.4% in girls by Demirjian, Nolla and Willems methods respectively. Conclusion: This study revealed Demirjian, Nolla and Willems methods can be a valid measure for age estimation among Nepalese children and precise prediction of chronological age can be made from different dental age estimation techniques.

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Age estimation from physiological changes of teeth: A reliable age marker?

Cited by 18 publications

References 10 publications

Sexual Dimorphism in the Buccolingual Dimensions of Permanent Anterior Teeth in the Young Iranian Population

Sexual Dimorphism in the Buccolingual Dimensions of Permanent Anterior Teeth in the Young Iranian Population

Maintenance of dental records and awareness of forensic odontology among pakistani dentists: a mixed-method study with implications for dental data repository

Dental age estimation and accuracy assessment by Demirjian, Nolla and Willems methods in Nepalese children for predicting the chronological age

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