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.

scholarly journals Dental Age Assessment using Demirjian’s Eight Teeth Method and Willems Method in a Tertiary Hospital

2018 ◽  
Vol 56 (214) ◽  
pp. 912-916
Author(s):  
Nitin Kumar Agrawal ◽  
Lucina Hackman ◽  
Samarika Dahal
Keyword(s):  
Age Estimation ◽  
Tooth Development ◽  
Third Molar ◽  
Tertiary Hospital ◽  
Chronological Age ◽  
Criminal Prosecution ◽  
Dental Age ◽  
Dental Age Estimation ◽  
The Mean ◽  
Willems Method

Introduction: Age estimation is an important aspect in forensic anthropology, as it can aid in the identification of the deceased, and can be used in cases of immigration, child abuse and criminal prosecution in living individuals. Dental age estimation is considered reliable and accurate, since tooth development is least affected by environmental factors compared to somatic growth.Methods: In total, 150 pre-orthodontic treatment radiographs from healthy individuals were assessed. These individuals were aged between 8 to 19 years. Dental age for these individuals was calculated by two methods: Demirjian’s eight teeth method and Willems method. For Willems method, seven teeth on the left side of mandible (except the third molar) were staged according to Demirjian’s staging, and for Demirjian’s eight teeth method, all eight teeth were staged.Results: The mean chronological ages were 13.6961±1.94384 years in males and 13.9204±2.63541 years in females. The mean estimated ages by Demirjian’s eight teeth method were 12.1856±1.73478 years and 11.7906±2.32344 years in males and females respectively. Similarly, the mean estimated ages by Willems method were 12.8958±1.46838 years in males and 12.6926±2.27807 years in females.Conclusions: Willems method and Demirjian’s eight teeth method underestimated the chronological age in the given population. Both methods showed excellent correlation with chronological age indicating their applicability in dental age estimation, with development of population specific scores.

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. 

COMPARISION OF DENTAL SCORING SYSTEM WITH RADIOGRAPHIC SKELETAL SYSTEM IN AGE ESTIMATION

JKCD ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 9-11
Author(s):  
Sadaf Ambreen
Keyword(s):  
Age Estimation ◽  
Scoring System ◽  
Skeletal Age ◽  
Chronological Age ◽  
Age Group ◽  
Dental Age ◽  
Scoring Method ◽  
Cross Sectional ◽  
Study Results ◽  
Male Subjects

Objectives: To compare Demirjian Dental scoring method with Greulich-Pyle (GP) Skeletal method of age estimation in pubertal children. Materials and Methods: Sample of the study included 267 male healthy subjects of 11-16 years of age group.. Demirjian Scoring system was utilized to evaluate the orthopantomograms to assess their Dental age and the Hand-Wrist radiographs were analyzed to calculate the skeletal age by utilizing GP atlas. Chronological age was obtained from the date of birth of the subject .Both methods were compared with one another and with the chronological age. It was a cross-sectional study and only healthy male subjects without any clinical abnormalities were included in the study. Results: A total of 267 male subjects of 11-16 years of age group were assessed by Demirjian and Greulich Pyle Methods. Both were compared with Chronological Age. Data obtained was statistically analyzed and the Student “t” test was applied in the study population. The mean difference between Chronolgical age and dental age was 0.69years and that of chronological age and skeletal age was 0.87 years. It was observed from dental age assessment that it does not differ much from the skeletal age. Conclusion: It was concluded that Demirjian method of Age Estimation is more precise than Greulich Pyle method of Age Estimation. Furthermore both methods can be used selectively in Medicolegal cases to access bone age which can be easily correlated to chronological age.

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.

Accuracy of Estimating Chronological Age from Nolla's Method of Dental Age Estimation in a Population of Southern Saudi Arabian Children

2020 ◽  
Vol 23 (12) ◽  
pp. 1753
Author(s):  
SM Yassin ◽  
BA M AlAlmai ◽  
SH Ali Huaylah ◽  
MK Althobati ◽  
FM A AlHamdi ◽  
...  
Keyword(s):  
Age Estimation ◽  
Saudi Arabian ◽  
Chronological Age ◽  
Dental Age ◽  
Dental Age Estimation

scholarly journals Dental age estimation in brazilian older adults: report of two cases

2018 ◽  
Vol 32 (3) ◽  
pp. 151
Author(s):  
Mário Marques Fernandes ◽  
Alana De Cassia Silva Azevedo ◽  
Alexandre Raphael Deitos ◽  
Maria Gabriela Haye Biazevic ◽  
Rogério Nogueira Oliveira
Keyword(s):  
Older Adults ◽  
Age Estimation ◽  
Chronological Age ◽  
Case Description ◽  
Dental Age ◽  
Dental Age Estimation ◽  
The Public ◽  
Error Margin ◽  
Specific Formula

OBJECTIVE: report two cases of age estimation using the method developed by Kvaal et al. (1995).CASE DESCRIPTION: two males, apparently older and without identity documents, underwent age estimation tests by the Public Ministry in order to estimate chronological age. This method proposes a specific formula for dental elements present with error margin of 11.5 years. After this stage, new civil records were carried out, entitling the cases to some social benefits.CONCLUSION: age estimation in living individuals is a challenge but significantly important in the civil and penal spheres, and Kvaal’s technique may be used in Brazilian older adults.

Dental Age Estimation According to European Formula and Willems Method: Comparison Between Children With and Without Cleft Lip and Palate

2021 ◽  
Vol 58 (5) ◽  
pp. 612-618
Author(s):  
Evgenija Markovic ◽  
Nemanja Marinkovic ◽  
Ksenija Zelic ◽  
Petar Milovanovic ◽  
Marija Djuric ◽  
...  
Keyword(s):  
Age Estimation ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Chronological Age ◽  
Control Group ◽  
Dental Age ◽  
Dental Age Estimation ◽  
Cross Sectional ◽  
Significant Difference ◽  
Willems Method

Objective: To assess dental age and deviations of dental from chronological age according to the Willems and Cameriere methods (European formula) in patients with cleft lip and/or cleft palate (CL/P) and compare it with control group. Design: Retrospective cross-sectional study. Setting: Clinic of Orthodontics. Participants: Sixty-nine patients with CL/P between 6 and 15 years of age (55 with unilateral and 14 with bilateral CL/P) with 148 panoramic radiographs. The same number of radiographs was examined in the age-matched control group. Main Outcome Measures: Estimation and comparison of dental age and differences of dental from chronological age in relation to the type of cleft, sex, and age in the group of patients with and without CL/P according to Willems and Cameriere method. Results: No significant intersex and intergroup differences were found in deviations of dental from chronological age according to Cameriere method ( P > .05). Significant difference in deviation of dental from chronological age was found between the patients with and without CL/P according to Willems method ( P < .001). Conclusion: Cameriere European formula for dental age estimation, which is not influenced by sex and tooth morphology, showed similar dental development of children with and without CL/P. However, Willems method detected that deviation of dental from chronological age significantly differed between children with and without clefts.

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).

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