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.

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 The role of cervical vertebrae maturation in defining the chronological age of Down syndrome children

2017 ◽  
Vol 50 (4) ◽  
pp. 220
Author(s):  
Aggiani Dewi Rahmawati ◽  
Iwan Ahmad ◽  
Arlette Suzy Setyawan
Keyword(s):  
Down Syndrome ◽  
Normal Development ◽  
Cervical Vertebrae ◽  
T Test ◽  
Skeletal Age ◽  
Physiological Age ◽  
Chronological Age ◽  
Control Group ◽  
Dental Age ◽  
Children With Down Syndrome

Background: The difficulty of determining chronological age is increased in individuals with conditions that may affect normal development. Some systemic conditions in children, for example Down syndrome, may cause abnormal physiological maturation. Skeletal and dental age are considered the most apt physiological age indicators in determining chronological age. Purpose: This study aimed to compare and analyze the relationship between two developmental parameters (dental history and skeletal age) as indicators of the chronological age of children with Down syndrome. Methods: The study design was cross-sectional with a paired t-test to analyze the differences in chronological and dental age of the samples. The radiograph selection was based on purposive sampling. The study material consisted of 30 panoramic radiographs and lateral cephalometrics of 6-14 years old children with Down syndrome and those experiencing normal development (control group) divided into two groups of 15 subjects who attended the Pediatric Dentistry Polyclinic, RSGM, Universitas Padjadjaran. Statistical analysis employed a t-test to determine the difference between chronological and dental age, while a Spearman rank correlation was used to evaluate the correlation between dental and skeletal age. Results: The results showed there to be no statistical difference between chronological and dental age, where p > 0.05, but a significant relationship between dental and skeletal age in children diagnosed with Down syndrome, where p = 0.05. Conclusion: It is concluded that dental age identified by means of the Nolla method is closer to chronological age than skeletal age using the cervical vertebrae maturation method.

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.

Some effects of accelerating growth - I. General somatic development

1960 ◽  
Vol 152 (947) ◽  
pp. 188-206 ◽  
Keyword(s):  
Skeletal Muscles ◽  
Sexual Maturity ◽  
Single Mother ◽  
Chronological Age ◽  
Stock Diet ◽  
Somatic Development ◽  
The Difference ◽  
The Times

By varying the number of rats to be suckled by a single mother from the first day of their lives, it has been possible so to accelerate the grow the rate of the animals in the small litters that they were two to four times heavier than those in the large litters when they were 21 days’ old. Although all the animals were offered unlimited amounts of the stock diet (‘Diet 41’) from the time they could eat it, the difference in size continued to increase and the animals from the small litters became much larger adults than the others, and remained so. By accelerating growth in this way the times at which anatomical, physiological and chemical maturity were reached were severally modified, and it was shown that the development of some functions such as ocular vision and eruption of the teeth was determined mainly by chronological age, while that of others such as sexual maturity was more closely linked with the attainment of a certain size. Chemical maturity of the skeletal muscles depended both upon age and size, and the muscle of the animals whose growth had been accelerated, even though large in size, showed some of the signs of immaturity to be expected from the chronological age.

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.

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 Differences Chronological Age and Dental Age Using Demirjian Method based upon a Study Radiology using Radiography Panoramic at the RSGM Unhas

2016 ◽  
Vol 1 (2) ◽  
pp. 242
Author(s):  
Barunawaty Yunus ◽  
Yulia Wardhani
Keyword(s):  
Growth And Development ◽  
Panoramic Radiography ◽  
Treatment Plan ◽  
Human Growth ◽  
Wilcoxon Test ◽  
Chronological Age ◽  
Sufficient Information ◽  
Dental Age ◽  
Significant Difference ◽  
Demirjian Method

<strong>Background.</strong>Choronological age is assessed by the date, month, and year of birth. Several researches suggested that Chronological age may not be able to provide sufficient information regarding on human growth precisely. Chronological age, on the other hand, could not be used to assess  Maturity development rate of a patient, so it is necessary to assess the dental age. Dental age is age assessment method  by measuring human growth and development. Age estimation has important role in health field, Particularly  in dentistry as it will be beneficial in making appropriate diagnosis, Treatment plan, and prognosis. Tooth eruption estimation according to Demirjian Method conducted by assessing growth and development process of tooth using panoramic  radiography. <strong>Purpose</strong><strong>. </strong>Determine the difference between Chronological Age and Dental Age Using Demirjian Method Based on Radiology Analysis of Panoramic Radiography. <strong>Method.</strong> This study was an observational analytic using Cross-sectional study, all data are observed once at the time. In this study,  the amount of sample reviewed were 30 samples, consisted of 4 – 9 years old children. Panoramic radiography were collected based on target population which fulfill Sample Criteria from reconciled patient of radiology department RSGM Unhas. The results were obtained by estimating the score of  dental age using Demirjian Method. After that, the Dental age and chronological age were analayzed to obtain the mean difference. <strong>Result</strong><strong>. </strong>Based on wilcoxon test, mean value was obtain p:0.011 (p&lt;0.05), this result shows that there is significant difference between chronological age and dental age. <strong>Conclusion</strong><strong>.</strong>Chronological age and dental age can be assessed by reviewing the panoramic radiography using Demirjian Method

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