scholarly journals Estimation of dental age in panoramic radiographs in children and adoloescents from 7-17 years through Demirjian method, Cuenca – Ecuador.

2018 ◽  
Vol 4 (4) ◽  
pp. 1259-1265
Author(s):  
Magdalena Molina ◽  
Verónica Verdugo ◽  
Valeria Romero ◽  
Arturo Fuentes
Keyword(s):  
Clinical Importance ◽  
Female Gender ◽  
Chronological Age ◽  
Dental Age ◽  
Dental Maturation ◽  
Different Populations ◽  
American Children ◽  
And Gender ◽  
Standard Table ◽  
Demirjian Method

Age is an indicator of dental somatic maturation, of clinical importance in dentistry for planning the treatment of growing patients. The Demirjian method is the most widely disseminated to estimate dental age. With this method, numerous studies have been carried out in different ethnic groups, analyzing European, Asian and American children, among others. These results suggest possible differences in dental maturation patterns between different populations. The aim of the present study was to correlate the dental age, using the Demirjian method, with the chronological age according to gender in a group of children who attended the Radiological Center “Innova” located in Cuenca-Ecuador in the period 2012 - 2014, This study was descriptive, retrospective and analytical, in which a sample stratified by age and gender was selected, including 362 radiographs, of which 205 are female and 157 male. An inter-class correlation coefficient was obtained, as a measure of correlation between dental and chronological age, of 0.830 in the female gender and 0.801 in the male gender. In general, Demirjian’s method tended to underestimate dental age in girls and boys in a similar way. In conclusion, the results obtained in the present work do not coincide with many places in the world, that is, the dental age in this group was slightly lower in both girls and boys than the original Franco - Canadian sample. The obtained range of dental age is not similar to the chronological age but the degree of correlation between both is adequate to apply in our population, presenting itself in the same way according to gender, so a standard table for the population was elaborated Cuencana. We consider that the Demirjian method is applicable to this sample of children using the database proposed in the present investigation.

scholarly journals Evaluation of dental maturation in children according to sagittal jaw relationship

2014 ◽  
Vol 08 (01) ◽  
pp. 038-043 ◽  
Author(s):  
Elcin Esenlik ◽  
Aslihan Atak ◽  
Ceyhan Altun
Keyword(s):  
Negative Relationship ◽  
Vertical Plane ◽  
Chronological Age ◽  
Dental Age ◽  
Dental Maturation ◽  
Significant Negative Relationship ◽  
Male Patients ◽  
Mandibular Teeth ◽  
Mandibular Protrusion ◽  
Demirjian Method

ABSTRACT Objective: The aims of this retrospective study were to determine compliance with dental and chronological ages and to analyze the relationships between dental age and orthodontic sagittal anomalies. Materials and Methods: A total of 221 subjects between the ages of 7 and 15.9 years (165 girls and 156 boys) were included in the study. The dental age of seven left mandibular teeth was assessed according to the Demirjian method. The maxillary protrusion, mandibular protrusion, maxillo-mandibular and vertical plane angles were measured from cephalometric films. Results: The mean difference between the chronological age and dental age in female patients was 0.94 years and 0.33 years in male patients (P < 0.01). No differences between the sagittal classification groups were found. There was no relationship between dental age and the SNA° or the GoGn-SN°. A statistically significant negative relationship was found between dental age and the SNB° and there was a significant linear relationship between dental age and the ANB°. Conclusion: Dental age in girls and boys has been estimated to be more advanced than chronological age in all classes and dental maturation advanced in cases with a tendency to develop Class II malocclusions.

scholarly journals Dental Maturity in Saudi Children Using the Demirjian Method: A Comparative Study and New Prediction Models

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Ziad D. Baghdadi
Keyword(s):  
Prediction Models ◽  
Age Groups ◽  
Total Sample ◽  
Chronological Age ◽  
Dental Age ◽  
French Canadian ◽  
Dental Maturation ◽  
Canadian Population ◽  
Significant Difference ◽  
Demirjian Method

A sample of 422 dental panoramic radiographs from individuals of known age (from 4 to 14 yrs), sex (males: 217, females: 205), and ethnicity (Saudi) was collected. A dental maturation score for each individual was calculated using the Demirjian method. Age was then estimated using the original Demirjian curves and tables based on French-Canadian population and population-specific curves and tables for Arab (Saudi and Kuwaiti) and European (Belgian) populations. The differences between dental age and chronological age were analyzed and compared using paired t-tests, one-way ANOVA test, and a post hoc Scheffé’s test. The Demirjian method utilizing French-Canadian standards presented significant difference between dental age and chronological age for the total sample and in the vast majority of age groups in both sexes. The mean overestimation of age was about 10 months (P<0.05). The tables designed specifically for Arab populations had a significantly lower error than the tables designed for French-Canadian and Belgian populations. The latter had the largest error in age predication. New age prediction models and maturation scores for Saudi population were developed based on the Demirjian method using multinomial functions.

Dental Age Assessment of 8.5 to 17 Year-old Saudi Children Using Demirjian's Method

2008 ◽  
Vol 9 (3) ◽  
pp. 64-71 ◽  
Author(s):  
Suiaiman Al-Emran
Keyword(s):  
Age Groups ◽  
Chronological Age ◽  
Age Group ◽  
Dental Age ◽  
French Canadian ◽  
Age Assessment ◽  
Standard Values ◽  
Mandibular Teeth ◽  
Demirjian’S Method ◽  
Demirjian Method

Abstract Aim The aim of this study was to assess the dental age in Saudi children aged 8.5 to 17 years using the Demirjian method. Methods and Materials Four hundred ninety panoramic radiographs of boys and girls were reviewed retrospectively. All children were placed in the age group closest to their chronological age. The dental age was scored on all seven left mandibular teeth by one examiner. Results Both boys and girls in age groups nine to 14 years showed advanced dental age compared to their chronological age which was found to be statistically significant except in age groups nine and 13 years. Saudi boys were 0.3 years and Saudi girls 0.4 years ahead, on average, of French-Canadian children as analyzed by the Demirjian method. Conclusion The standard values for French-Canadian children provided by Demirjian vary slightly for application to Saudi children. As a result, new graphs and tables were produced to convert these maturity scores, calculated by the Demirjian method, to the dental age for Saudi children. Citation Al-Emran S. Dental Age Assessment of 8.5 to 17 Year-old Saudi Children Using Demirjian's Method. J Contemp Dent Pract 2008 March; (9)3:064-071.

scholarly journals Accuracy assessment of dental age estimation with the Willems, Demirjian and Nolla methods in Spanish children. Comparative cross-sectional study.

2020 ◽  
Author(s):  
Marta Macarena Paz Cortés ◽  
Rosa Rojo ◽  
Esther Alia García ◽  
Maria Rosa Mourelle Martínez
Keyword(s):  
Accuracy Assessment ◽  
Statistical Tests ◽  
Age Groups ◽  
Wilcoxon Test ◽  
Chronological Age ◽  
Dental Age ◽  
Paired Data ◽  
Cross Sectional ◽  
Demirjian Method ◽  
Willems Method

Abstract Background: The objective of this study was to evaluate and compare the validity and accuracy of the Willems, Demirjian and Nolla methods in predicting chronological age in a Spanish ethnicity population. Methods: A sample of 604 orthopantomographs of Spanish children aged 4 to 14 years was evaluated by two independent evaluators. Descriptive statistics were applied to calculate the chronological age and dental age, presenting the mean and standard deviation. The difference between dental age and chronological age was calculated for each method. A positive result indicated an overestimation and a negative figure indicated an underestimation. The Wilcoxon test for paired data and Spearman's correlation coefficient were applied by age groups and gender to compare the chronological age and dental age of each method (that of Willems, Demirjian and Nolla). Statistical tests were performed at a 95% confidence level. Results: The interexaminer agreement was 0.98 (p = 0.00), and the intraexaminer agreement was 0.99 (p = 0.00). The Willems method significantly overestimated the age of boys (0.35 years (0.93)) and girls (0.17 years (0.88)). The Demirjian method significantly overestimated the age of boys (0.68 years (0.95)) and girls (0.73 years (0.94)). The Nolla method significantly underestimated age in boys (0.44 years (0.93)) and girls (0.82 years (0.98)). Conclusions: In the Spanish population, the use of the Demirjian method for legal and medical purposes is frequent. This study reveals that the Willems method is more appropriate due to its greater precision in estimating dental age.

scholarly journals Dental Age in Precocious and Delayed Puberty Periods

2021 ◽  
Author(s):  
Derya Tabakcilar ◽  
Ruveyde Bundak ◽  
Koray Gencay
Keyword(s):  
Precocious Puberty ◽  
Normal Development ◽  
Significant Degree ◽  
Chronological Age ◽  
Delayed Puberty ◽  
Dental Development ◽  
Dental Age ◽  
Somatic Development ◽  
The Difference ◽  
Demirjian Method

Abstract Objectives Precocious puberty indicates quick growth inception and delayed puberty indicates retardation in growth. This study aims to investigate whether dental development is synchronous with somatic development. Materials and Methods In this study, 62 girls and 34 boys with precocious puberty aged 5 to 9, 29 girls with delayed puberty aged 13 to 16, and 43 boys with delayed puberty aged 14 to 17; 169 children (91 girls and 78 boys) with normal development were compared about their dental ages through their panoramic radiographs by using the Demirjian method and skeletal ages from hand-wrist radiographs by using Greulich-Pyle atlas. Results The findings showed that, in all cases, the dental age values were higher than chronologic and skeletal age values to a statistically significant degree. In the precocious puberty group, the dental age values were higher than chronologic age values to a statistically significant degree. In the delayed puberty group, the difference determined between the chronological age and the dental age was not found to be statistically significant. Conclusion Given that the Demirjian method is inclined to make calculations that are higher than the chronological age, our findings suggest that the dental development was faster in the precocious puberty group and retarded in the delayed puberty group.

Are Dental Maturation, Skeletal Maturation, and Chronological Age Associated With Complete Cleft Lip and Palate?

2020 ◽  
pp. 105566562094477
Author(s):  
Taner Ozturk ◽  
Husniye Gumus ◽  
Gulce Ozturk
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Cervical Vertebra ◽  
Skeletal Maturation ◽  
Chronological Age ◽  
Control Group ◽  
Dental Age ◽  
Cross Sectional ◽  
Dental Maturation ◽  
Development Levels

Objective: The relationship between dental and skeletal development levels was determined in individuals with cleft lip and palate and a control group comprising individuals without cleft lip and palate. Design: Retrospective, cross-sectional study. Setting: A university clinic specializing in orthodontic and pedodontic care. Patients: A total of 198 patients with cleft lip and palate (99 females, 11.66 ± 2.36 years; 99 males, 12.44 ± 2.33 years) and 198 patients without cleft lip and palate (99 females, 11.88 ± 2.26 years; 99 males, 12.99 ± 2.25 years). Interventions: None. Main Outcome Measures: The Demirjian method and cervical vertebra maturation method were used to evaluate panoramic and lateral cephalometric radiographs, respectively. The Fishman maturation predictors were determined from hand-wrist radiographs. Results: Statistically significant correlations were found between the chronological age and the dental age in both the groups ( P < .05). Significant correlations between skeletal maturation indicators and dental maturation indicators were observed in both groups and sexes ( P < .05), with a stronger correlation among teeth with incomplete dental maturation. Dental age was found to be significantly lower (female, P = .001; male, P = .001) in individuals with cleft lip and palate (female, 11.71 ± 2.58 years; male, 12.51 ± 2.62 years) compared to those in the control group (female, 12.95 ± 2.47 years; male, 13.64 ± 2.37 years). Conclusions: A high correlation between the results of the evaluated radiographic methods and chronological age supports their use for accurate age estimation in the patients with cleft lip and palate.

scholarly journals Dental age estimation of Jordanian children: applicability of Demirjian method

2020 ◽  
Vol 68 ◽  
Author(s):  
Elham S ABU ALHAIJA ◽  
Arwa OWAIS ◽  
Ghaida ALJAMAL ◽  
Yousef NASRAWI
Keyword(s):  
Age Estimation ◽  
Quadratic Model ◽  
Chronological Age ◽  
Dental Age ◽  
Dental Age Estimation ◽  
Male And Female ◽  
Teaching Clinics ◽  
Male Subjects ◽  
Demirjian Method

ABSTRACT Objectives: To evaluate the accuracy of Demirjian method in estimating the chronological age of male and female Jordanian children and to establish a new dental age curve if the Demirjian method was not found to be accurate. Methods: Orthopantomograms (OPTs) of 1374 Caucasian Jordanian children (684 females and 690 males) aged 4 to16 years were selected and the dental age was determined by Demirjian method. The chronological ages of the children were obtained by subtracting their birthdates from the date of taking the radiograph. The OPTs were obtained from Archives of Dental Teaching Clinics /XXX and other private orthodontic practices in Irbid and Amman. Results: Demirjian method overestimated chronological age in female and male subjects aged 4 to 8 years. Afterwards, the method underestimated chronological age in females aged 9-11 years and 14-16 years. In male subjects, chronological age was underestimated in subjects aged 9-12 years and 15-16 years. New the dental age curves for Jordanian females and males were constructed. The constants for the quadratic model for the new curves were (b0=-25.341, b1=17.557, b2=-0.623) for females and (b0=-29.809, b1=17.396, b2=-0.595) for males. Conclusion: Demirjian method overestimated the chronological age of Jordanians below the age of 8 years and underestimated the age of Jordanians above 8 years. A new DA standard for Jordanian children was developed and tested for accuracy.

scholarly journals Dental age assessment on panoramic radiographs: Comparison between two generations of young Finnish subjects

2018 ◽  
Vol 47 (1) ◽  
pp. 311-324 ◽  
Author(s):  
Flavia A. Birchler ◽  
Stavros Kiliaridis ◽  
Christophe Combescure ◽  
Johanna Julku ◽  
Pertti M. Pirttiniemi ◽  
...  
Keyword(s):  
Meta Analysis ◽  
Chronological Age ◽  
Dental Development ◽  
Healthy Children ◽  
Dental Age ◽  
Age Assessment ◽  
Dental Maturation ◽  
Panoramic Radiographs ◽  
Two Generations ◽  
Maxilla And Mandible

Objective To analyse the accuracy of a meta-analysis-based dental age assessment (DAA) method in Finnish paediatric patients and to compare the dental development between two generations of Finnish children. Methods Panoramic radiographs of Finnish Caucasian healthy children from two generations (early: born 1981–1984; subsequent: born 1996–2008) were analysed. All developing teeth on the left maxilla and mandible as well as the third permanent molars were analysed following Demirjian’s classification. For each patient, dental age was calculated and compared with chronological age. Dental maturation patterns between the two groups were compared. Results The study included 200 Finnish Caucasian healthy children from two generations (early: aged 7–13 years; subsequent: aged 6–15 years). In the early generation, DAA underestimated the chronological age by a mean of 3.15 years. The underestimation was only 0.11 years in patients < 10 years, but 3.86 years in patients ≥ 10 years. In the subsequent generation, the dental age was overestimated by a mean of 0.34 years; by 0.40 years in patients < 10 years and by 0.08 years in patients ≥ 10 years. Conclusions The present DAA method is applicable to current Finnish children. Differences in dental development between two generations of Finnish children were detected.

scholarly journals The Influence of Age on the Development of Dental Caries in Children. A Radiographic Study

2021 ◽  
Vol 10 (8) ◽  
pp. 1702
Author(s):  
Abel Emanuel Moca ◽  
Luminița Ligia Vaida ◽  
Bianca Maria Negruțiu ◽  
Rahela Tabita Moca ◽  
Bianca Ioana Todor
Keyword(s):  
Dental Caries ◽  
Eating Habits ◽  
Chronological Age ◽  
Dental Age ◽  
Unhealthy Eating ◽  
Carious Lesions ◽  
Deep Carious Lesions ◽  
Permanent Molars ◽  
First Permanent Molars ◽  
Demirjian Method

Dental caries is a chronic disease that can be influenced by a multitude of factors. Poor oral hygiene and unhealthy eating habits are the most incriminating factors in the onset of dental caries, but age has been proven to impact the disease. The aim of this study was to find correlations between age and the evolution of dental caries in the first permanent molars in children. The retrospective study was conducted based on 400 panoramic radiographs, belonging to Romanian children between the ages of 6 and 14 years. All first permanent molars were investigated, and the carious lesions were classified according to their depth. The chronological age was calculated by subtracting the patient’s date of birth from the date when the radiograph was performed, while for the assessment of dental age, the Demirjian method was used. The gender of the patients did not significantly influence the number of superficial, medium, and deep carious lesions. Most of the identified carious lesions were superficial. Regarding correlations between age and dental caries, there was an association between the decrease in the chronological age and the increase in the number of superficial carious lesions on the first permanent molars and also an association between the increase in the chronological age or dental age and the increase in the number of medium and deep carious lesions on the first permanent molars. Age can impact the development of dental caries in first permanent molars.

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