International Journal of Medical Research & Health Sciences ESTIMATION OF DENTAL AGE BY NOLLA'S METHOD USING ORTHOPANTOMOGRAPHS AMONG RURAL FREE RESIDENTIAL SCHOOL CHILDREN (original) (raw)
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Journal of Indian Academy of Oral Medicine and Radiology, 2014
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.
BioMed Research International
Objectives. Dental age estimation has been employed in a range of legal operations as well as catastrophe victim identification. Dental age estimation is regarded as an appropriate method for estimating a person’s age because there is a high association between age and teeth. This study aims to assess the suitability of the Al Qahtani and Willems dental age estimation approaches for the Indonesian children and adolescent population. Methods. A total of 150 panoramic radiographs of patients (75 boys and 75 girls, 6-17 years old) were obtained from the Department of Radiology, Airlangga University, Indonesia. One researcher analyzed estimated dental age (EDA) twice in a one-week time-lapse using the Willems and Al Qahtani methods. The statistical analysis of the present study was carried out using IBM® SPSS® Statistics version 25.0 (IBM, Armonk, NY, USA). Results. The mean of this study’s chronological age (CA) was 11.60 ± 3.41. Using the Willems method, the mean difference between CA...
Dental age estimation by Demirjian’s and Nolla’s method in Nepalese children
Journal of College of Medical Sciences-Nepal
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.
Accuracy of four dental age estimation methods in southern Indian children
Journal of clinical and diagnostic research : JCDR, 2015
For various forensic investigations of both living and dead individuals, the knowledge of the actual age or date of birth of the subject is of utmost importance. In recent years, age estimation has gained importance for a variety of reasons, including identifying criminal and legal responsibility, and for many other social events such as birth certificate, marriage, beginning a job, joining the army and retirement. Developing teeth are used to assess maturity and estimate age in number of disciplines; however the accuracy of different methods has not been assessed systematically. The aim of this study was to determine the accuracy of four dental age estimation methods. Digital Orthopantomographs (OPGS) of South Indian children between the ages of 6 and 16 y who visited the department of Department of Oral medicine and Radiology of GITAM Dental College, Visakhapatnam, Andhra Pradesh, India with similar ethnic origin were assessed. Dental age was calculated using Demirjian, Willems, N...
The Differences of Chronological Age with Dental Age Based on the Alqahtani Methode Aged 6-12 Years
Journal of Health and Dental Sciences, 2021
The chronological age of a person can not provide sufficient information. We can use the dental age in panoramic radiographs to know the growth process appropriately compared to The London Atlas of the Alqahtani method. Children aged 6-12 years have various factors that can affect the velocity in tooth growth and development, such as male and female. This study aims to determine the chronological patient's age differences with dental age based on the Alqahtani method on a panoramic radiograph at Unjani Dental and Oral Education Hospital. This type of research is Analytical Observational with the Cross-Sectional Study method. Research subjects were obtained from all medical records panoramic radiographs with 72 panoramic radiographs aged 6-12 years, divided into 36 male patients and 36 female patients. Differences in chronological age with dental age were analyzed statistically using the Mann-Whitney test and Wilcoxon test, previously tested for the normality using Kolmogorov- Sm...
Evaluation of Dental Age in Nepali Children using Demirjian’s 7-Teeth Teeth Method
Orthodontic Journal of Nepal
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 ye...
Journal of forensic and legal medicine, 2016
Age estimation in forensic context is of prime importance for criminal, civil and administrative laws. The objective of this study is to test the accuracy of 3 methods of age estimation in South Indian children (preadolescents) aged between 7 and 15 years. It is a retrospective study of orthopantamograms (OPGs) of 150 children among which 79 were boys and 71 were girls. Cameriere's, Willems and Acharya's age estimation methods were used to predict chronological age. Paired t-test was used to compare all data and relationships between continuous variables were examined using Pearson's correlation coefficient. The…
Age Estimation by Permanent Teeth Eruption Among School Children in Madurai (South India)
Indian Journal of Forensic Medicine and Toxicology
Abstract The estimation of age of children and adolescents has medico legal significance particularly in India. Tooth enables accurate estimate of the age in the young as tooth formation has less variability. Since several known varying geographical factors influence development of the tooth, a universally applicable, standard eruption time for the permanent teeth poses difficulty in estimation of age. This resulted in a need for a regional study and this study was undertaken. The subjects of the study were 300 children and adolescents ( ...
Age estimation in children of Ahmedabad population by measurement of open apices of teeth
2020
Background/Objective: To estimate the age by radiographic prediction method and to validate the equation of Cameriere in 5-15 years of children of Ahmedabad city population. To compare observed age with estimated age and to formulate new regression equation for children if Cameriere equation is not validated. Method:Orthopantomographs taken from 300 children of Ahmedabad city aged between 5-15 years were analyzed. Following the Cameriere equation, subjects’ age was modeled as a function of gender(g),region of the country© and morphological variable:x5(the distance between the inner sided of the open apex of second premolar divided by the tooth length), s(x1+x2+x3+x4+x5+x6+x7)sum of normalized open apices,N0(the number of teeth with root development complete). Result: Second premolar variable was not significant while gender and the variables S, N0 and the firsts order interaction between S and N0 contributed significantly to the fit. Thus, only these variables were included in the r...