Sex estimation using the mandibular canine index components

Azevedo, Álvaro; Pereira, Maria Lurdes; Gouveia, Sónia; Tavares, João Nuno; Caldas, Inês Morais

doi:10.1007/s12024-018-0051-2

Cited by 19 publications

(18 citation statements)

References 32 publications

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“…Ten authors were contacted by email with four replies (40.0% return rate), but no more studies were added. Of the twenty studies submitted to full-text assessment, three were excluded [18][19][20] (Table 4), and seventeen, with a global average JBI score of 51.3%, were pooled in the present review. 7,[10][11][12][13][21][22][23][24][25][26][27][28][29][30][31][32][33] Eight studies were classified with a high RoB, four with a moderate RoB, and the remaining five with a low RoB.…”

Section: Resultsmentioning

confidence: 99%

Prevalence of root canal system configurations in the brazilian population analyzed by cone-beam computed tomography – a systematic review

Silva¹,

Prado²,

Duarte³

et al. 2021

j.rpemd

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Objectives: This study performed a systematic review of anatomy prevalence studies using cone-beam computed tomography to comprehend the root and root canal configuration types in Brazilian sub-populations. Methods: This systematic review followed PRISMA’s statements. Four electronic databases (PubMed, ScienceDirect, Lilacs, and Cochrane Collaboration) were accessed using MeSH terms and free-text keywords. The studies were selected according to predefined criteria. References of the collected studies, three peer-reviewed endodontic journals, and two peer-reviewed evidence-based dentistry journals were hand searched. The authors were contacted for additional information, if necessary. Eligible studies were submitted to a scientific merit assessment by two evaluators independently, who reached a final consensus for each study score using the Joanna Briggs Institute Critical Appraisal tool for prevalence studies. Results: A total of 2266 studies were identified. After analysis, 20 full-text articles were accessed for eligibility and 17 were included for qualitative synthesis. A high prevalence of mandibular incisors presenting two root canals was noted (~35.0% – 40.0). Moreover, a high proportion of two-rooted (17.0% – 28.4%) and two root canals (50.1% – 75.0%) morphologies were identified in maxillary second premolars. A wide range and a high percentage of a second mesiobuccal canal were detected for both maxillary first (37.1% – 88.5%) and second molars (21.8% – 83.4%). A second root canal prevalence ranging from 12.4% to 23.4% was observed in the distal root of mandibular first molars. Conclusions: In conclusion, different Brazilian sub-populations may present divergent characteristics regarding the root and root canal configurations. Clinicians should be aware of these variations for proper planning of endodontic treatment.

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Section: Resultsmentioning

confidence: 99%

Prevalence of root canal system configurations in the brazilian population analyzed by cone-beam computed tomography – a systematic review

Silva¹,

Prado²,

Duarte³

et al. 2021

j.rpemd

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“…The assessment of sex represents a key research task in the forensic and bioarcheological examination of unknown human skeletal remains [1]. Sex estimation methods have focused in different bones [3,47,48] but the pelvis prevails as the most sexually dimorphic skeletal region [3,5,8]. As such, the conception of new methods or the enhancement of preexisting techniques for sex estimation with the pelvis is justified.…”

Section: Discussionmentioning

confidence: 99%

CADOES: An interactive machine-learning approach for sex estimation with the pelvis

Coelho

Curate

2019

Forensic Science International

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The pelvis is consistently regarded as the most sexually dimorphic region of the human skeleton, and methods for sex estimation with the pelvic bones are usually very accurate. In this investigation, population-specific osteometric models for the assessment of sex with the pelvis were designed using a dataset provided by J.A. Serra (1938) that included 256 individuals (131 females and 125 males) from the Coimbra Identified Skeletal Collection and 38 metric variables. The models for sex estimation were operationalized through an online application and decision support system, CADOES. Different classification algorithms generated high accuracy models, ranging from 85% to 92%, with only three variables; and from 85.33% to 97.33%, with all 38 variables. CADOES conveys a probabilistic prediction of skeletal sex, as well as a suite of attributes with educational applicability in the fields of human skeletal anatomy and statistics. This study upholds the value of the pelvis for the estimation of skeletal sex and provides models for that can be applied with high accuracy and low bias.

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“…8 Among permanent teeth, mandibular canines are considered those that exhibit the greatest sexual dimorphism and are therefore adopted, by many, as the tooth of choice for sexual estimation studies. 4,6,9,10 From a methodologic point of view, the mandibular canine index appears in the literature as an adequate and easy predictor for sex estimation. 11 However, the mesiodistal width of a mandibular canine crown has recently been suggested as a simpler technique with higher sex prediction accuracy.…”

Section: Introductionmentioning

confidence: 99%

“…11 However, the mesiodistal width of a mandibular canine crown has recently been suggested as a simpler technique with higher sex prediction accuracy. 10 Like the rest of the teeth, canines show resilience to extreme physical and chemical conditions observed in circumstances where human identification is challenging, such as mass disasters, crashes, or fires. [12][13][14] Moreover, they have a long and strong single root inserted in the alveolar bone, which favors its permanence in the oral arch.…”

Section: Introductionmentioning

confidence: 99%

Buccolingual root dimension of permanent mandibular canines as a complementary estimator of sex: a pilot study

Koninck¹,

Azevedo²,

Cardoso³

et al. 2021

j.rpemd

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Objective: To evaluate the potential of the buccolingual dimension of the permanent mandibular canine roots as a sex estimator, using midsagittal cone-beam computed tomography images. Methods: In this retrospective study, 58 Portuguese patients (27 female and 31 male) aged 18-60 years were assessed. The maximum buccolingual dimension of the cervical root was measured in the midsagittal plane through cone-beam computed tomography images. The Bland-Altman method was applied for the reliability analysis, and a receiver operating characteristics (ROC) curve was obtained for accuracy analysis. Results: The buccolingual root dimension on the mandibular canine showed statistically significant differences between sexes (t56 df = 4.871; p<0.0005). The optimal cut-off to differentiate males from females was 6.64 mm. The area under the curve (AUC) was 83.5% (p<0.0005). An overall accuracy of 79% was obtained. The percentage of males correctly estimated was 77.4%, compared to 81.5% of females. Conclusions: Our data suggest that canines’ buccolingual root dimension can serve as a complementary tool for sex estimation in a forensic context.

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Sex estimation using the mandibular canine index components

Cited by 19 publications

References 32 publications

Prevalence of root canal system configurations in the brazilian population analyzed by cone-beam computed tomography – a systematic review

Prevalence of root canal system configurations in the brazilian population analyzed by cone-beam computed tomography – a systematic review

CADOES: An interactive machine-learning approach for sex estimation with the pelvis

Buccolingual root dimension of permanent mandibular canines as a complementary estimator of sex: a pilot study

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