Estimation of Dental Age by Demirjian and Willems Method in a Tertiary Care Hospital of Nepal

2021 ◽  
Vol 11 (1) ◽  
pp. 40-45
Author(s):  
Sumita Upadhyay ◽  
Sijan Paudyal ◽  
Prashant Khatiwada ◽  
Bibardha Khanal ◽  
Rasna Shrestha
Keyword(s):  
Age Estimation ◽  
Pearson Correlation ◽  
Tertiary Care ◽  
Pediatric Dentistry ◽  
Chronological Age ◽  
Strong Positive Correlation ◽  
Care Hospital ◽  
Dental Age ◽  
Demirjian Method ◽  
Willems Method

Introduction: Dental age estimation using orthopantomogram is very useful in pediatric dentistry, orthodontics in clinical diagnosis and treatment planning and also has forensic application. Demirjian method is widely used for age estimation and Willems method has been suggested to be accurate than Demirjian in various populations. To estimate the dental age of children in a specific population of Nepal by Demirjian and Willems method, compare them with the chronological age and assess their applicability. Materials and Method: Digital orthopantomograms of 5 to 14 years of children were used to estimate the dental age by Demirjian’s 7- teeth method and Willems method. Descriptive statistics was used and mean with standard deviation was calculated for gender and age of the samples. Paired t-test was used for comparison of chronological age with dental age. P < 0.05 was considered as statistically significant.Pearson correlation was used to assess the correlation between chronological and dental age in both the genders. Result: By Demirjian method, there was an underestimation of 0.276 years in males and 0.194 in females and by Willems method, 0.652 in males and 0.847 in females which were statistically significant. There was an underestimation of dental age in all the age groups except in the age group of 5,7 and 14 for Demirjian age which was statistically nonsignificant. Pearson correlation demonstrated strong positive correlation between chronological age and dental age. Conclusion: The underestimation of dental age was more by Willems method as compared to Demirjian method. There was a strong positive relationship between chronological age and dental age in both the genders. Demirjian’s 7- teeth method was more applicable as compared to Willems method when tested in selected Nepalese children population

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.

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 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 estimation methods in children based on radiograph panoramic

2021 ◽  
Vol 5 (2) ◽  
pp. 90
Author(s):  
Shintya Rizki Ayu Agitha ◽  
Icha Artyas Annariswati
Keyword(s):  
Age Estimation ◽  
Panoramic Radiography ◽  
Estimation Method ◽  
Pediatric Dentistry ◽  
Estimation Methods ◽  
Inclusion Criteria ◽  
Dental Age Estimation ◽  
Pubmed Database ◽  
Demirjian Method ◽  
Willems Method

Objectives: Age estimation is a key point in forensics, archeology, pediatrics and pediatric dentistry. Analysis using the development of teeth is one of the available methods that are used for physical identification, as well as age, in children. This article reviewed several journals about the methods of age identification, especially in children. The purpose of this review was to briefly inform about the recent researches regarding the application of age identification methods in children by using panoramic radiography as it is the most widely used method, in the years 2020-2021. Review: This article was a narrative review. Analyzed articles were searched from the PubMed database which were published between 2020 until 2021. There were 12 journals in accordance with the inclusion criteria of age estimation method in children using panoramic radiography. Conclusion: 7 of 12 journals that met the inclusion criteria used Willems method in the researches, 5 journals used Demirjian method, 3 journals used Cameriere method, 2 journals used Nolla method. Willems method was the most used analysis for identifying age and proved to be effective for identification in various populations, such as Belgium, Caucasian, Turkish, Saudi Arabian, Kenyan, Chinese and Taiwanese.

scholarly journals The Relationship between Chronological Age, Dental Age, and Salivary Alkaline Phosphatase in Indonesian Children Aged 8-14 Years: A Cross-Sectional Study

2021 ◽  
Author(s):  
Sindy Cornelia Nelwan ◽  
Soegeng Wahluyo ◽  
Firli Cahaya Khairani ◽  
Ricardo Adrian Nugraha ◽  
Haryono Utomo ◽  
...  
Keyword(s):  
Alkaline Phosphatase ◽  
Rank Order ◽  
Correlation Coefficients ◽  
Pediatric Dentistry ◽  
Diagnostic Tools ◽  
Chronological Age ◽  
Healthy Children ◽  
Strong Positive Correlation ◽  
Dental Age ◽  
Cross Sectional

BackgroundInability to predict dental age accurately has long been the Achilles heel of pediatric dentistry. Whilst dental age has an important aspect in clinical practice, saliva can be one of the most practically important diagnostic tools to estimate biological age.AimsThis study was aimed to analyze a correlation between chronological age, dental age, and salivary alkaline phosphatase in Indonesian children aged 8-14 years.MethodsThis study was an observational study with cross-sectional design. Twenty healthy children (10 boys; age 10.504 ± 1.895 years) were selected by a consecutive sampling. Chronological age was assessed by recording date of birth. Dental age was assessed by orthopantamogram following Demirjian’s method. Salivary samples were collected by passive drool method and estimation of alkaline phosphatase was done by autoanalyzer.ResultsNormality test was assessed using Kolmogorov-Smirnov and Shapiro-Wilk test. Statistical analyses were assessed using Spearman’s rank-order correlation coefficients. Results are presented as mean ± standard deviation (SD). Mean chronological age was10.504 ± 1.895 years, mean Demirjian’s score was 91.74 ± 5.972, and mean salivary alkaline phosphatase was 291.563 ± 115.135 pg/ml. There is a very strong positive correlation between chronological age and dental age (r=+0.804; p<0.001). On the contrary, levels of salivary alkaline phosphatase was negatively correlated to dental age (r=-0.780; p<0.001) and chronological age (r=-0.508; p=0.022).ConclusionsThis study showed a strong correlation between dental age, chronological age, and salivary alkaline phosphatase; hence, estimation of dental age and salivary alkaline phosphatase in Indonesian children during early and late childhood has significant meaning to chronological age.

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 Age estimation using Orthopantomograph and Willems method in Chitwan population: an original study

2018 ◽  
Vol 14 (2) ◽  
pp. 98-101
Author(s):  
Deepika Kapoor
Keyword(s):  
Age Estimation ◽  
Original Study ◽  
Chronological Age ◽  
Dental Age ◽  
Males And Females ◽  
Root Closure ◽  
Willems Method

ABSTRACTBackground: Utilization of age estimation has increased manifold in recent years. Various methods available for age estimation before the complete dentition has erupted and matured till the root closure stage include Nolla’s stages, Demirijan”s method, modified Demirijan’s method by Willems, Haavikko’s method. So, in this study we have tested that on Chitwan population of Nepal.Materials and methods: 60 patients between the ages 6-16 were selected and digital orthopantomographs of each of the patients was taken and then Demerijian method was applied and age estimation done by Willems method. Whereas the chronolical age was known and the reliability of this method on this population checked.Results: The study shows correlation between chronological age CA and estimated dental age DA in males - .965 while in females - .861 and it is statistically significantConclusion: There was an underestimation of age i.e. the dental age was found out to be less than the actual chronological age of the sample. This shows the dental growth lag in the Chitwan  population. It was also found that when a comparison is done between the males and females it is found out that the females mature earlier than the males. 

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.

scholarly journals Knowledge, Attitude, Practices and Obstacles to Provide Urinary incontinence Care among Nurses

2021 ◽  
Vol 3 (1) ◽  
pp. 65-73
Author(s):  
Akmal Shehzad ◽  
Kausar Parveen ◽  
Muhammad Afzal
Keyword(s):  
Urinary Incontinence ◽  
Positive Attitude ◽  
Pearson Correlation ◽  
Tertiary Care ◽  
Significant Proportion ◽  
Good Knowledge ◽  
Unique Contribution ◽  
Care Hospital ◽  
Study Objective ◽  
Attitudes And Practices

Purpose: Nurses are personalities who stand with patients at all times to listen and solve their problems. Excellent knowledge, good practices and positive attitude of nurses proves very effective for improving patients with urinary incontinence in a mannered way. The study objective was, (a) evaluate the knowledge, attitudes and practices among nurses of urinary incontinence, (b) reveal the relationship between knowledge, attitudes and demographic characteristics and (c) evaluate obstacles faced by nurses during urinary incontinence care. Methodology: A cross-sectional study was accompanied in a government tertiary care hospital in Lahore, Pakistan. To analysis the variables statistical packages for social sciences version 25 was used. Pearson correlation test was used to correlate the knowledge, attitude and practices regarding urinary incontinence. Less than P>0.05 is significant. Findings: 164 nurses contributed in the studies and 157 completed and return the survey questioner, with return rate of 95.7%. Of those, 117(74.5%) were female nurses and 40(25.5%) were male nurses. There is a significant correlation found between knowledge with attitude items 0.046 and knowledge with practice items 0.039. The study respondents have good knowledge, positive attitude but wrong practices regarding urinary incontinence. Unique contribution to theory, practice and policy: It is concluded that Nurses have good knowledge, positive attitude but wrong practices that require special training or workshops to managing and treating incontinence more efficiently. This helps to bring significant improvement in urinary incontinence care and helps to lower the heath care cost. Such clinical guidelines need to be made within the organizations to manage a significant proportion of patients with urinary incontinence. Keywords: Knowledge, Attitude, Practices, Obstacles, Urinary incontinence, Nurses

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