Beurteilung der Weisheitszahneruption

Olze, Andreas; Peschke, C.; Schulz, Ronald; Ribbecke, S.; Schmeling, Andreas

doi:10.1007/s00194-012-0845-6

Cited by 7 publications

(10 citation statements)

References 17 publications

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“…In another study, Olze et al investigated the correlation of their stages with age. For this purpose, they evaluated 211 conventional OPGs of 109 women and 107 men aged 15 to 26 years [ 29 ]. They examined the correlation between age and eruption stage with the η-coefficient.…”

Section: Discussionmentioning

confidence: 99%

“…They examined the correlation between age and eruption stage with the η-coefficient. When only the two mandibular third molars were considered, η-coefficients between 0.610 and 0.699 were obtained, depending on the observer [ 29 ]. However, caution should be exercised in ascribing a cause for the difference between our results and those of Olze, which is likely to also reflect sampling heterogeneity.…”

Section: Discussionmentioning

confidence: 99%

“…The orthopantomograms (OPGs) were obtained from a university dental clinic (Münster, North Rhine-Westphalia region, Germany). For this comparison study, we sought a sample of 200 digital orthopantomograms from an equal mix of males and females in line with previous studies published in the field [ 29 ]. However, to account for later exclusions, the number of OPGs originally approached was inflated to 220.…”

Section: Methodsmentioning

confidence: 99%

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Third molar eruption in orthopantomograms as a feature for forensic age assessment—a comparison study of different classification systems

Timme

Viktorov²,

Steffens³

et al. 2023

Int J Legal Med

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Evaluation of third molar eruption represents an established method for age assessment of living individuals. Different classification systems are available for the radiological assessment of third molar eruption. The aim of this study was to identify the most accurate and reliable classification system for the mandibular third molar eruption on orthopantomograms (OPG). We compared the method of Olze et al. (2012) with the method of Willmot et al. (2018) and a newly derived classification system using OPGs from 211 individuals aged 15–25 years. The assessments were performed by three experienced examiners. One examiner evaluated all radiographs twice. The correlation between age and stage was investigated and the inter- and intra-rater reliability was estimated for all three methods. Correlation between stage and age was similar between classification systems, although higher in the data from males (Spearman’s rho ranging from 0.568 to 0.583) than from females (0.440 to 0.446). Inter- and intra-rater reliability measures were similar across methods and invariant on sex, with overlapping confidence intervals, although the highest point estimates for both intra- and inter-rater reliability were for the method by Olze et al. with Krippendorf’s alpha values of 0.904 (95% confidence interval 0.854, 0.954) and 0.797 (95% confidence interval 0.744, 0.850). It was concluded that the method of Olze et al. from 2012 is a reliable method for practical application and future studies.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Third molar eruption in orthopantomograms as a feature for forensic age assessment—a comparison study of different classification systems

Timme

Viktorov²,

Steffens³

et al. 2023

Int J Legal Med

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“…A dental feature for which the correlation with age is well substantiated by good evidence is the eruption of the mandibular third molars in the dental panoramic radiograph (DPR) [21][22][23][24][25][26][27][28]. A major advantage of eruption as an age assessment feature is its predominantly genetic determination and its substantial independence from external factors [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

“…A major advantage of eruption as an age assessment feature is its predominantly genetic determination and its substantial independence from external factors [29][30][31]. Various methods exist for assessing third molar eruption in DPR, and a commonality across all these methods is the description of eruption using defined morphological stages, corresponding to an ordinal scale [21,[32][33][34][35]. Thus, in these methods, eruption is conceptualized as a categorical variable.…”

Section: Introductionmentioning

confidence: 99%

Third Molar Eruption in Dental Panoramic Radiographs as a Feature for Forensic Age Assessment—Presentation of a New Non-Staging Method Based on Measurements

Timme,

Bender,

Steffens

et al. 2023

Biology

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The evaluation of third molar eruption in dental panoramic radiographs (DPRs) constitutes an evidence-based approach for forensic age assessment in living individuals. Existing methodologies involve staging morphological radiographic findings and comparing them to reference populations. Conversely, the existing literature presents an alternative method where the distance between third molars and the occlusal plane is measured on dental plaster models. The aim of this study was to adapt this measurement principle for DPRs and to determine correlation between eruption and chronological age. A total of 423 DPRs, encompassing 220 females and 203 males aged 15 to 25 years, were examined, including teeth 38 [FDI] and 48. Two independent examiners conducted the measurements, with one examiner providing dual assessments. Ultimately, a quotient was derived by comparing orthogonal distances from the mesial cementoenamel junctions of the second and third molars to a simplified radiological occlusal plane. This quotient was subsequently correlated with the individual’s age. We estimated correlations between age and quotients, as well as inter- and intra-rater reliability. Correlation coefficients (Spearman’s rho) between measurements and individuals’ ages ranged from 0.555 to 0.597, conditional on sex and tooth. Intra-rater agreement (Krippendorf’s alpha) ranged from 0.932 to 0.991, varying according to the tooth and sex. Inter-rater agreement ranged from 0.984 to 0.992, with distinctions drawn for different teeth and sex. Notably, all observer agreement values fell within the “very good” range. In summary, assessing the distance of third molars from a simplified occlusal plane in DPRs emerges as a new and promising method for evaluating eruption status in forensic age assessment. Subsequent reference studies should validate these findings.

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