Applicability of Demirjian’s Method  and Modified Cameriere’s Methods for  Dental Age Assessment in Children

Pratyusha, K.; Prasad, Madu Ghanashyam; Radhakrishna, Ambati Naga; Saujanya, Kaniti; Raviteja, Narra Venkata Krishna; Chandrasekhar, Shalini

doi:10.7860/jcdr/2017/21474.9342

Cited by 12 publications

(13 citation statements)

References 13 publications

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“…This was in accordance with the studies conducted by Rai et al and Bagh et al who also found non-significant results while comparing dental age with the chronological age using Indianspecific formula (Rai et al 2010;Bagh et al 2014). On the other hand, our results are in contrast to the study conducted by Pratyusha et al where significant results were obtained when comparing dental age with the chronological age using Indian-specific formula (Pratyusha et al 2017).…”

Section: Discussioncontrasting

confidence: 99%

Assessing the accuracy of Cameriere’s Indian-specific formula for age estimation on right and left sides of orthopantomogram

Vadla

Surekha

Guttikonda

et al. 2020

Egypt J Forensic Sci

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Background: Age estimation is of prime importance in forensic science and clinical dentistry. In children, age estimation can be done by skeletal maturity indicators like hand-wrist radiographs and dental age estimation. Skeletal maturity indicators compared with dental age estimation is limited as they are influenced by various environmental parameters, whereas calcification of teeth depends on genes rather than environmental factors. Many of the dental age estimation methods use extracted teeth, which are quite invasive, whereas Cameriere's method is a recently introduced radiographic method first in European population; where in age estimation is done using open apices of teeth by orthopantomogram (OPG). Indian-specific formula was introduced later using permanent mandibular teeth on left side of jaw. The present study aimed to estimate the age and also to determine the accuracy of Cameriere's method using Indian-specific formula on both right and left sides of mandible in Khammam population of South India and also to determine the side which can be efficient in determining age. Methodology: The present study comprised radiographs of 50 subjects (25 boys and 25 girls) ranging from 5 to 15 years. The soft copies of the radiographs of selected subjects were retrieved from the computer attached to the digital orthopantomogram machine (Orthophos XG5; Sirona Dental Systems). The 7 left and right permanent mandibular teeth were assessed in OPGs. The number of teeth with closed apical and with open apical ends of roots was examined and measured. The values were tabulated based on the Cameriere method of age estimation using Indian-specific formula. Statistical analysis was done using paired t test and Karl Pearson's correlation coefficient test. Results: Comparison of dental age with chronological age in males showed non-significant results on both left and right sides of the OPG with a p value of 0.3765 and 0.3045, respectively. Likewise in females, p values of 0.2167 and 0.8089 were noted. When males and females were compared, non-significant results were obtained with a p value of 0.1613 in the age estimated on the left side of the OPG and a p value of 0.4322 on the right side of the OPG. Correlation test showed that left side of the OPG showed better results in determining age than the right side of the OPG with an r value of 0.9982 and 0.9485 in males and females, respectively.

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Section: Discussioncontrasting

confidence: 99%

Assessing the accuracy of Cameriere’s Indian-specific formula for age estimation on right and left sides of orthopantomogram

Vadla

Surekha

Guttikonda

et al. 2020

Egypt J Forensic Sci

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“…As this method only requires open apices and teeth length to be measured, it is easier, and more objective compared to other quantitative methods. Some previous study showed that Cameriere's method is more accurate than the widely used Demirjian's or Willems's methods [34][35][36][37][38][39][40].…”

Section: Discussionmentioning

confidence: 99%

Application of Cameriere’s method for dental age estimation in children in South China

Yang

Wen

Xiao

et al. 2021

Forensic Sciences Research

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The aim of this study was to evaluate the applicability of Cameriere’s European formula for age estimation in children in South China and to adapt the formula to establish a more suitable formula for these children. Moreover, the performance of dental age estimation based on Cameriere’s method combining the developmental information of permanent teeth (PT) and third molar (TM) was also analysed. Orthopantomographs of 720 healthy children in Group A, and orthopantomographs of 320 children and 280 subadults in Group B were assessed. The samples of Group A were divided into training dataset 1 and test dataset 1, and the samples of Group B were also divided into training dataset 2 and test dataset 2. A South China-specific formula was established based on the training dataset 1, and the comparison of accuracy between the Cameriere’s European formula and the South China-specific formula was conducted with the test dataset 1. Additionally, a PT regression model, a TM regression model, and a combined regression model (PT + TM) were established based on the training dataset 2, and the performance of these three models were validated on the test dataset 2. The Cameriere’s European formula underestimated chronological age with a mean difference (ME) of −0.47 ± 1.11 years in males and −0.69 ± 1.19 years in females. However, the South China-specific formula underestimated chronological age, with a mean difference (ME) of −0.02 ± 0.71 years in males and −0.14 ± 0.73 years in females. Compared with PT model and TM model, the PT and TM combined model obtained the smallest root mean square error (RMSE) of 1.29 years in males and 0.93 years in females. In conclusion, the South China-specific formula was more suitable for assessing the dental age of children in South China, and the PT and TM combined model can improve the accuracy of dental age estimation in children. Key points Orthopantomographs of 720 healthy children in Group A, and orthopantomographs of 320 children and 280 subadults in Group B were assessed. A South China-specific formula was established based on the training dataset 1, and the comparison of accuracy between the Cameriere’s European formula and the South China-specific formula was conducted with the test dataset 1. A PT regression model, a TM regression model, and a combined regression model (PT + TM) were established based on the training dataset 2, and the performance of these three models were validated on the test dataset 2. The South China-specific formula was more suitable for assessing the dental age of children in South China, and the PT and TM combined model can improve the accuracy of dental age estimation in children.

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“…The score on this method is obtained from 8 stages of tooth calcification from stages A to H on panoramic radiography. 8 This assessment is done on central incisors, lateral incisors, canines, first premolars, second premolars, first molars, and lower left second molars. 11,12 Each tooth has its own score from the stage of calcification and the values differ between men and women.…”

Section: Discussionmentioning

confidence: 99%

“…The results of this study show an insignificant difference between the Demirjian method and the Camiere method. 8 George et al (India) in 2018, from the University in Karnataka, used the Schour-Massler method for forensic studies which is done on 62 secondary panoramic radiographic data. The number of male and female subjects is balanced, and the study is done only on good quality radiographic results.…”

Section: Introductionmentioning

confidence: 99%

Age Estimation Using Schour-Massler Method Compared to the Demirjian Method

Boel¹,

Bahri²

2019

Dentika Dental J.

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Schour-Massler and Demirjian are methods used to estimate chronological age in dental radiographs by looking at the development of permanent teeth and the maturity of the dental age. Chronological age is based on date of birth. Dental age is the age based on the maturity of the teeth. Both of these methods have been widely used in previous studies, but have never been compared. The purpose of this study was to determine whether there are differences in age estimation using the Schour-Massler and Demirjian methods. This study was an observational analytic study with a cross sectional design. The research sample was 46 patients who came to USU General Hospital at the age of 10-16 years. This research was consist at the Radiology Unit of the Faculty of Dentistry, University of North Sumatra. The results of this study indicate the p value of the Wilcoxon test results with the p value for Schour-Massler p=0.090 > 0.05 and Demirjian p=1,000. Both p values> 0.05, there is no significant difference in assessing the estimated age using both methods, so Ha is accepted. In conclusion, the Schour-Massler and Demirjian methods provide estimates of age that are close to actual age, so there is no significant difference between the two methods.

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Applicability of Demirjian’s Method and Modified Cameriere’s Methods for Dental Age Assessment in Children

Cited by 12 publications

References 13 publications

Assessing the accuracy of Cameriere’s Indian-specific formula for age estimation on right and left sides of orthopantomogram

Assessing the accuracy of Cameriere’s Indian-specific formula for age estimation on right and left sides of orthopantomogram

Application of Cameriere’s method for dental age estimation in children in South China

Age Estimation Using Schour-Massler Method Compared to the Demirjian Method

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