scholarly journals Comparison of Cameriere’s and Demirjian’s methods of age estimation among children in Kerala: a pilot study

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Vivek Velayudhan Nair ◽  
Sunila Thomas ◽  
Jincy Thomas ◽  
Shabna Fathima ◽  
Deena Thomas ◽  
...  
Keyword(s):  
Age Estimation ◽  
Mixed Dentition ◽  
Dental Age ◽  
Panoramic Radiographs ◽  
Positive Linear Correlation ◽  
Insignificant Difference ◽  
The Mean ◽  
Age Range ◽  
Demirjian’S Method ◽  
Paired T Test

The aim was to compare age estimation using Cameriere’s and Demirjian’s methods to chronologic age in children with mixed dentition in a rural population of Kerala. The present study comprised of 10 subjects of age range 7-12 years. Dental age was assessed using Cameriere’s and Demirjian’s methods and was compared to the chronologic age. Panoramic radiographs were used for assessment of dental age. Data were analysed using paired t-test. The mean of difference obtained was 0.92 and the pvalue was 0.172 which showed insignificant difference between the two methods. Cameriere’s method showed a positive linear correlation (0.6393) with chronologic age and was statistically significant (P=0.0171) , whereas Demirjian’s method showed a negative correlation (–0.7598) and was statistically insignificant (P=0.9967). The present study indicated that Cameriere’s method is reliable for age estimation in our population and is more accurate than Demirjian’s method.

scholarly journals Prakiraan Usia Gigi Menggunakan Standar Blenkin (Modifikasi Metode Demirjian) pada Anak-Anak Etnik Jawa di Kabupaten Jember

2020 ◽  
Vol 17 (2) ◽  
pp. 60
Author(s):  
Dwi Kartika Apriyono
Keyword(s):  
Age Estimation ◽  
Accurate Estimate ◽  
Permanent Teeth ◽  
Chronological Age ◽  
Age Difference ◽  
Dental Age ◽  
Dental Age Estimation ◽  
Panoramic Radiographs ◽  
Significant Difference ◽  
Age Range

Chronological and dental age are necessary aspects of dental age estimation. Both have a close relationship. Chronological age reflects the age of the tooth, and vice versa. Dental age estimation aims to provide the data in the field of dentistry with an accurate dental age range. In order to get the value of an accurate estimate of dental age, needed a method of estimation that has a standard deviation as low as possible and validated in a specific population groups of an individual. Demirjian method is a method frequently used in the dental age estimation. It uses the classification stages of the seven permanent teeth of mandibular left side using panoramic radiographs. Application of its method in some countries showed vary results so it needed adjustment. Blenkin standard is an adjustment of its method that changes the score of maturity stages 0-H to 1-8 and calculate the dental age by regression formula. The study aimed to assess the dental age estimation using Blenkin standard on children of Javanese ethnic in Jember region. This was an analytic descriptive study design. The samples were panoramic radiographs. The subjects were 70 samples consisting of 29 boys and 41 girls with an age range 6-12 years, and they were divided into 7 groups based on chronological age. Each tooth of the sample was calculated using Blenkin standard. The Blenkin standard showed non-significant difference with the age difference in the amount of approximately -0.22 years for boys and -0.03 years for girls (underestimation).

scholarly journals Dental Age Estimation by Demirjian’s and Nolla’s Method in Children of Jorpati, Kathmandu

2018 ◽  
Vol 14 (3) ◽  
pp. 137-141
Author(s):  
Sanskriti Khanal ◽  
Jemish Acharya ◽  
Priyanka Shah
Keyword(s):  
Age Estimation ◽  
Cross Sectional Study ◽  
Chronological Age ◽  
Dental Age ◽  
Dental Age Estimation ◽  
Cross Sectional ◽  
Planning Treatment ◽  
The Mean ◽  
Nepalese Children ◽  
Demirjian’S Method

Background: Growing individuals not only differ in the timing of the maturational events, but also in the sequence of these events. Age is one of the essential factors, which play an important role in every aspect of life like in clinical, medico-legal, forensic and anthropological applications and in planning treatment of   orthodontic and pedodontic patients. The aim of the study was to determine dental age from                       orthopantomogram using Demirjian’s method and Nolla’s method and to evaluate the interrelationship     between chronological and dental age according to both these methods. Materials and Methods: A cross sectional study was carried out in 177 orthopantomograms of the patient aged between 5 to 15 years. Dental age estimation was done with Demirjian’s and Nolla’s method. Results: The mean chronological age 10.14 + 3.16 compared with the mean Demirjian age 9.58 + 3.39 was statistically non significant p > 0.05 whereas comparision with mean Nolla age 7.88+ 1.56 was significant statistically. Conclusions: Both methods showed delayed dental age compared to chronological age. Demirjian’s method was more  applicable to    assess the dental age in Nepalese children compared to Nolla’s method.Keywords: chronological age; dental age; Demirjian’s method; Nolla’s method. 

scholarly journals Evaluation of Dental Age in Nepali Children using Demirjian’s 7-Teeth Teeth Method

2018 ◽  
Vol 7 (2) ◽  
pp. 37-40
Author(s):  
Rinky Nyachhyon
Keyword(s):  
Age Estimation ◽  
Age Groups ◽  
P Value ◽  
Dental Age ◽  
Dental Age Estimation ◽  
Tooth Formation ◽  
The Mean ◽  
Mean Differences ◽  
Demirjian’S Method ◽  
Dental Maturity

Introduction: Age estimation can be based on tooth formation stages seen on the radiographs. Demirjian’s method is widely used to assess age of individuals with developing dentition. There are not many documented studies of age estimation amongst Nepali population.Objective: To assess the applicability of Demirjian’s method for dental age estimation in Nepali children.Materials & Method: The sample of the study consisted of 186 subjects between 7-16 years of age. Dental age estimation was based on Demirjian’s method and scored by a single observer.Result: The mean and mean differences in chronological and dental ages were calculated, which revealed the overestimation in age groups of 7 and 9 years, whereas there were underestimations in other age groups. The mean differences in age groups 12-16 were highly significant (p-Value <0.05) whereas the mean difference in age groups 7-11 years were not statistically significant.Conclusion: Since there is underestimation range from 0.5 years to 1.23 years, the standards of dental maturity described by Demirjian may not be suitable for Nepali children.

scholarly journals Accuracy of Demirjian’s Method to Estimate Chronological Age in 5‒17-Year-Old Iranian Population

2019 ◽  
pp. 1-7
Author(s):  
Mahnaz Sheikhi ◽  
Ali Dakhilalian ◽  
Faranak Jalalian
Keyword(s):  
Regression Line ◽  
T Test ◽  
Iranian Population ◽  
Chronological Age ◽  
Dental Age ◽  
Line Equation ◽  
The Mean ◽  
Demirjian’S Method ◽  
Paired T Test ◽  
Demirjian Method

Introduction: To detect physiological maturity of a child, use of dental and skeletal development can be helpful. The Demirjian’s Method is one of the commonly used methods to estimate dental age. The aim of the present study was to evaluate the validity of Demirjian method in Iranian population with different races. Materials and Methods: The present cross-sectional study was performed on a randomly selected sample of panoramic radiographs of 3073 patients aged 5‒17 years. The chronological age (CA) was calculated by subtracting the date of birth from the date on which the radiographs were taken. Estimated age (EA) was performed by Demirjian method using seven left mandibular teeth. Paired t-test was used to compare differences between chronological and estimated age. Results: The mean of CA was 11.14±2.61 years whereas the mean EA was 11.35±2.62; therefore, EA was calculated 2.5 months more than CA. According to paired t-test the difference between CA & EA was significant (P≤ 0.001). Pearson’s correlation coefficient showed a strong linear correlation between CA and EA in total (r=0.891, P≤0.001), in girls (r=0.895, P≤ 0.001) and in boys (r=0.876, P≤ 0.001). The new regression line equation based on Iranian standards would be CA=1.08±0.89EA in total, CA=1.09±0.89EA in girls and CA=1.12+0.88EA in boys. Conclusion: Using Demirjian’s Method overestimated dental age in the Iranian population. A new regression line equation based on Iranian standards was obtained according to the results of the present study.

Comparison of radiological dental age estimation by means of the method by Cameriere and the modified European formula

2018 ◽  
Vol 23 (2) ◽  
Author(s):  
Katarzyna Różyło ◽  
Katarzyna Gruszka ◽  
Ingrid Różyło-Kalinowska
Keyword(s):  
Age Estimation ◽  
Treatment Options ◽  
Original Method ◽  
Permanent Teeth ◽  
Dental Age ◽  
Dental Age Estimation ◽  
Digital Radiographs ◽  
Conservative Dentistry ◽  
The Mean ◽  
Radiological Methods

Introduction. Dental age apart from skeletal age is an important factor in the estimation of biological age of patients. Its evaluation is crucial in making decisions concerning diagnostic algorithms and treatment options in such fields of medicine as paedodontics, conservative dentistry, orthodontics, paediatrics or endocrinology as well as for forensic purposes. There are various methods of radiological dental age estimation and their validity is related to the studied population. Aim. The aim of the paper is to estimate dental age by means of two radiological methods based on panoramic radiographs, i.e. the original method by Cameriere and the modified European formula. Material and methods. The material consisted of 2148 digital radiographs taken in patients of both genders, aged from 5 to 15 years, with visible germs of all permanent teeth, apart from third molars. Two methods by Cameriere were applied – the original one and the European formula. Statistical analysis was performed. Results. Dental age obtained by means of the two Cameriere’s methods was significantly different from chronological age (Wilcoxon’s test, p < 0.001). However, in the case of the original method the mean dental age was lower than the chronological one, while the European formula led to the overestimation of dental age. Conclusions. The European formula is more suitable for the evaluation of the Polish population than the original method by Cameriere.

scholarly journals Identification of Deceased Children of Nepal Airlines Crash through Dental Age Estimation

2017 ◽  
Vol 56 (208) ◽  
pp. 469-71
Author(s):  
Nitin Kumar Agrawal ◽  
Samarika Dahal ◽  
Harihar Wasti
Keyword(s):  
Age Estimation ◽  
Forensic Odontology ◽  
Mixed Dentition ◽  
Dental Age ◽  
Dental Age Estimation ◽  
Biological Profile ◽  
Disaster Victim Identification ◽  
Victim Identification ◽  
Dental Identification ◽  
Important Means

Identification of victims in a disaster is a challenging process and requires use of both primary and secondary identifiers. Development of teeth is one of the routinely used methods of age estimation and helps in establishing deceased biological profile. Two children who lost their lives in 2014 in Nepal Airlines crash, were looked for the dental developmental status. One of the children had primary dentition, while the other had mixed dentition. This helped us in estimating age of these individuals reconciled with the chronological age provided by the relatives. This led to the identification of both the children, thus, emphasizing teeth as important means of identification in any disaster. Keywords: dental age; dental identification; disaster victim identification; forensic dentistry; forensic odontology.

scholarly journals Using Dental Age to Estimate Chronological Age in Czech Children Aged 3–18 Years

2015 ◽  
Vol 116 (2) ◽  
pp. 139-154
Author(s):  
Kristina Ginzelová ◽  
Taťjana Dostálová ◽  
Hana Eliášová ◽  
Alex Vinšů ◽  
Antonín Buček ◽  
...  
Keyword(s):  
Age Estimation ◽  
Statistical Evaluation ◽  
Tooth Development ◽  
Chronological Age ◽  
Age Group ◽  
Dental Age ◽  
Dental Age Estimation ◽  
Mean Values ◽  
The Mean ◽  
Underlying Diseases

The Demirjian methods to determine dental age are based on analysis of orthopantograms. The dental age estimation is based on establishing the tooth development stages. The purpose of this study was to assess the accuracy of estimation of dental age by Demirjian in the use of all of his four methods. 505 Czech healthy boys and girls aged 3 to 18 years were examined radiographically at the Department of Stomatology, Second Faculty of Medicine, Charles University in Prague. It was mentioned the factors of underlying diseases influence the accuracy of the dental age estimation. For statistical evaluation, descriptive statistics was used to compare deviations of the mean values of chronological and dental age in each age group. The resulting difference between dental age and chronological age is not significant in both genders only when using both Demirjian 7-teeth methods of 1973 and 1976. Therefore these may be most appropriately used for forensic age estimation. There are shown standard deviation differences in different countries. Demirjian’s original 7-teeth method from 1973 and Demirjian’s revised 4-teeth method from 1976 appear to be the best methods for calculating the dental age of healthy Czech children of both genders.

Accuracy of Demirjian and Willems Methods for Age Estimation of Children from Northern Argentina

2019 ◽  
Author(s):  
Hugo Norberto Aragón
Keyword(s):  
Age Estimation ◽  
Dental Treatment ◽  
Chronological Age ◽  
Dental Development ◽  
X Rays ◽  
Statistical Accuracy ◽  
Radiographic Images ◽  
The Mean ◽  
Radiological Studies ◽  
Paired T Test

The dental development is widely used to estimate the chronological age; one method frequently used is that of Demirjian, applied in Franc-Canadian children, and the other is that of Willems, adapted from the first one to Belgian children. Demirjian uses scores according to the degree of calcification of the seven permanent mandible teeth of the left side; Willems adapts to years the scale of scores of Demirjian. Objective: To analyze the accuracy in determining the chronological age through the degree of dental calcification using the methods of Demirjian and of Willems in children from Tucumán, Argentina. Methods: 66 children (29 female and 37 male) who assisted to radiological studies previous to the dental treatment were selected. Panoramic X-rays were taken. Dental ages were calculated using the corresponding tables of the methods of Demirjian and Willems. Chronological ages were calculated between the date of birth and the date of the study. The statistical paired t-test was used. Results: Through the method of Demirjian the mean of the differences was 0.44 ± 0.96 for girls and 0.49 ± 1.02 for boys, being significant differences between both genders. The method of Willems was more accurate than that one of Demirjian (-0.08 ± 0.92 for girls and 0.19 ± 0.94 for boys), being no significant differences between the dental and the chronological ages. Conclusion: According to these results both methods could be used to estimate the chronological age through the observed dental calcification in radiographic images of children from northern Argentina. Nevertheless, greater statistical accuracy with the method of Willems would be reached for both genders.

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