Assessment of the effect of dimensions of the mandibular ramus and mental foramen on age and gender using digital panoramic radiographs: A retrospective study

Dosi, Tanvi; Vahanwala, Sonal; Gupta, Dhaman

doi:10.4103/ccd.ccd_26_18

Cited by 13 publications

(10 citation statements)

References 20 publications

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“…Thus, it can be used for gender determination at any age. The results of previous studies in this respect were in accordance with the present findings [ 22 , 39 , 40 , 41 ].…”

Section: Discussionsupporting

confidence: 94%

“… Gonial angle: Angle formed between the following two lines: A line tangent to the ramus and the mandibular condyle, and a line tangent to the most inferior part of the gonial section and the body of the mandible ( Figure 1 G) [ 18 ]. Distance between the superior border of the mental foramen and the inferior border of the ramus ( Figure 1 H) [ 22 ]. Distance between the inferior border of the mental foramen and the inferior border of the ramus ( Figure 1 I) [ 23 ].…”

Section: Methodsmentioning

confidence: 99%

“…Distance between the superior border of the mental foramen and the inferior border of the ramus ( Figure 1 H) [ 22 ].…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Forensic Gender Determination by Using Mandibular Morphometric Indices an Iranian Population: A Panoramic Radiographic Cross-Sectional Study

et al. 2023

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Gender determination is the first step in forensic identification, followed by age and height determination, which are both affected by gender. This study assessed the accuracy of gender estimation using mandibular morphometric indices on panoramic radiographs of an Iranian population. This retrospective study evaluated 290 panoramic radiographs (145 males and 145 females). The maximum and minimum ramus width, coronoid height, condylar height, antegonial angle, antegonial depth, gonial angle, and the superior border of mental foramen were bilaterally measured as well as bicondylar and bigonial breadths using Scanora Lite. Correlation of parameters with gender was analyzed by univariate, multiple, and best models. All indices except for gonial angle were significantly different between males and females and can be used for gender determination according to univariate model. Condylar height, coronoid height, and superior border of mental foramen and ramus were still significantly greater in males than in females after controlling for the effect of confounders (p < 0.05). Based on the best model, a formula including five indices of bicondylar breadth, condylar height, coronoid height, minimum ramus width, and superior border of mental foramen was used for gender determination. Values higher than 56% indicate male gender, while lower values indicate female gender, with 81.38% specificity for correct detection of females and 88.97% sensitivity for correct detection of males. Despite the satisfactory results, future research should focus on larger populations to verify the accuracy of the present findings.

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“…Thus, it can be used for gender determination at any age. The results of previous studies in this respect were in accordance with the present findings [ 22 , 39 , 40 , 41 ].…”

Section: Discussionsupporting

confidence: 94%

Section: Methodsmentioning

confidence: 99%

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Forensic Gender Determination by Using Mandibular Morphometric Indices an Iranian Population: A Panoramic Radiographic Cross-Sectional Study

et al. 2023

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“…In his chapter "Traits peculiar to the individual", Stewart mentions that anatomical features are valuable in identification due to their high variability and uniqueness [1]. Particularly the bones of the craniofacial skeleton and the teeth show a large variability in size, shape and proportions which can lead to identification [2]. Moreover, they are often among the best preserved parts in human remains, with the mandible persisting in a well-preserved state longer than any other bone [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…On radiographs, potential morphological identifiers of the mandible include the mental and mandibular foramen, the condyle, the coronoid and the mental symphysis [7,8]. Several authors studied the mental and mandibular foramina, with specific attention for their size [2,7,9,10], location and symmetry [8,[11][12][13][14]. However, the authors mainly focused on age estimation and sex determination [5,[15][16][17][18][19][20][21][22][23] rather than the identifying capacity of the mandibular morphological traits.…”

Section: Introductionmentioning

confidence: 99%

Quantifying the potential of morphological parameters for human dental identification: part 3—selecting the strongest skeletal identifiers in the mandible

et al. 2022

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The current study aimed to select the best mandibular morphological identifiers.One hundred eighty-five panoramic radiographs were retrospectively collected, in which four landmarks were located on the mandible: the most superior point of the condyle right/left (CONR/L), of the coronoid right/left (CORR/L), of the mandibular lingula right/left (LINR/L), and the most mesial point of the mental foramen right/left (MMFR/L). Five linear measurements, 6 angles and 10 ratios were measured bilaterally. Three groups of statistics were considered: (1) mean potential set; (2) inter-observer agreement quantified by intra-class correlation (ICC) and within-subject coefficient of variation (WSCV); (3) Spearman correlation. Parameters were selected for a step-by-step cascade.In a univariate approach, the following parameters proved to have the best identifying capacity: ratio 3 right (between lines CONR -CORR and LINR -MMFR) with mean potential set 13%, ICC 0.90, WSCV 4.8%; ratio 4 (between lines CONR/L -CORR/L and MMFR -MMFL) with mean potential set 13%, ICC 0.92, WSCV 8.9%; and angle 4 left (between landmarks LINL, MMFL and MMFR) with mean potential set of 18%, ICC 0.91, WSCV 1.2%. The correlation coefficients ranged from 0.01 to 0.33. In a multivariate approach, the identifying capacity improved drastically, with all ratios combined as the strongest identifier (mean potential set 1.29%).In conclusion, a single ratio or a single angle already narrows down the set of potential matches, but the mean potential set remains relatively large. Combining all ratios drastically increases the certainty of the match.

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Comparison of mandibular morphometric parameters in digital panoramic radiography in gender determination using machine learning

Pertek,

Kamaşak,

Kotan

et al. 2024

Oral Radiol

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Assessment of the effect of dimensions of the mandibular ramus and mental foramen on age and gender using digital panoramic radiographs: A retrospective study

Cited by 13 publications

References 20 publications

Forensic Gender Determination by Using Mandibular Morphometric Indices an Iranian Population: A Panoramic Radiographic Cross-Sectional Study

Forensic Gender Determination by Using Mandibular Morphometric Indices an Iranian Population: A Panoramic Radiographic Cross-Sectional Study

Quantifying the potential of morphological parameters for human dental identification: part 3—selecting the strongest skeletal identifiers in the mandible

Comparison of mandibular morphometric parameters in digital panoramic radiography in gender determination using machine learning

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