The timing of permanent tooth development in a Black Southern African population using the Demirjian method

Esan, Temitope Ayodeji; Schepartz, Lynne A.

doi:10.1007/s00414-018-1968-4

Cited by 12 publications

(6 citation statements)

References 45 publications

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“…Although individual skeletal maturation is valuable for correction of skeletal craniofacial imbalances, planning of alveolar bone grafting in children with CL/P prior to teeth eruption and orthodontic treatment is based on dental development (Franchi et al, 2008). One of many ways to evaluate dental development is by Demirjian method (DM; Manjunatha & Soni, 2014; Milani & Benso, 2019), which is based on an assessment of crown and root formation stages of seven left mandibular teeth (Melo & Ata-Ali, 2017; Ranasinghe et al, 2019; Esan & Schepartz, 2019).…”

Section: Introductionmentioning

confidence: 99%

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

Marković

Marinkovic

Zelić

et al. 2021

The Cleft Palate Craniofacial Journal

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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.

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Section: Introductionmentioning

confidence: 99%

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

Marković

Marinkovic

Zelić

et al. 2021

The Cleft Palate Craniofacial Journal

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“…In non-Indian populations, only a few reported underestimations [21,[22][23][24] and most reported overestimations [25][26][27][28][29][30][31].…”

Section: Discussionmentioning

confidence: 99%

Forensic Dental Age Estimation of North Indian Children Using Three Radiological Scoring Methods

Sankhyan

Sehrawat

Talwar

2022

AJFSFM

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Although believed to be reliable in children, dental age estimations have reportedly shown variations in their accuracy levels, indicating regional differences. The present paper aims to study the error threshold of the Nolla, Demirjian and Willems methods for age estimation of North Indian children. Digital orthopantomograms of 168 children aged 3-15 years were analyzed for the three methods. Demirjian dental age was found to be closest to the mean chronological age, as indicated by the p-value of paired t-test. The error range for the Willems and Demirijian methods was ±5 years with 87.5% of cases showing error within the range of ±2 years, and it was ±6 years with 84.5% of cases showing error within ±2 years using the Nolla method. The mean absolute error for the Nolla, Demirjian and Willems methods was 1.09, 1.10 and 0.97 years, respectively. The Willems method was better suited for dental age estimation of the studied population, though none of the methods precisely estimated the age of the participants. Wide variations in age estimates of varied population groups may be due to differences in statistical methods or genetic factors. Thus, comparison of the methods for different populations by the same researcher is suggested to reduce certain biasness (statistical methodology) in the study.

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“…Despite the development of different scales and methods, the Demirjian's scale is still considered to be one of most reliable bases for estimating DA in Caucasian children [16]. However, it has been found that in some populations, the scale tends to overestimate DA in relation to the chronological maturity of the child [17,18]. In addition, differences in DA have been found in various populations and these have been attributed to differences in the timing of their overall maturation; for example, a study population of Hong Kong residents were found to be more advanced overall in dental development compared with a British Caucasian population, by an average of 5 months [19].…”

Section: Discussionmentioning

confidence: 99%

The Broad Variability in Dental Age Observed among Childhood Survivors Is Cancer Specific

et al. 2021

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Purpose The study aimed to assess the differences in dental maturation between childhood cancer survivors and healthy children. Materials and Methods Fifty-nine cancer patients including 16 (27.1%) girls and 43 (72.8%) boys, aged between 4 and 16 years, underwent dental and radiographic examinations. The mean duration of anticancer therapy was 16.8 months (range, 1 to 47 months), and 4.6 years (range, 8 to 123 months) had passed since the termination of disease. The control group consisted of 177 panoramic radiographs of age- and sex-matched healthy individuals. Dental age (DA) was estimated with Demirjian’s scale and delta age, i.e., DA–chronological age (CA), was used to compare groups. Results The DA of cancer survivors was accelerated by almost 1 year compared to their CA (9.9±3.1 vs. 8.9±2.8, p=0.040). The greatest difference was observed among patients with brain tumor: delta (DA–CA) was 2.2±1.1 years. Among all cancer patients, only children with familial adenomatous polyposis (FAP)-associated hepatoblastoma (HP) demonstrated delayed DA, with regard to both other cancer survivors (p=0.011) and healthy patients (p=0.037). All four patients with HP suffered from FAP, and three of them had documented adenomatous polyposis coli ( APC ) genes mutation. The DA of cancer patients having teeth with short roots was significantly greater than that of the cancer survivors without this anomaly (12.8±3.2 vs. 9.0±2.4, p < 0.001). Conclusion DA in children may be altered by cancer disease.

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The timing of permanent tooth development in a Black Southern African population using the Demirjian method

Cited by 12 publications

References 45 publications

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

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

Forensic Dental Age Estimation of North Indian Children Using Three Radiological Scoring Methods

The Broad Variability in Dental Age Observed among Childhood Survivors Is Cancer Specific

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