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Odontometric analysis of molars for sex determination
PDF (Português (Brasil))

Keywords

Forensic dentistry. Molar. odontometry. Sex characteristics.

How to Cite

1.
Fernandes LCC, Veloso CVL, Oliveira J de A, Genu PR, Santiago BM, Rabello PM. Odontometric analysis of molars for sex determination. Braz. J. Oral Sci. [Internet]. 2016 Oct. 13 [cited 2024 Mar. 3];15(1):35-8. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8647109

Abstract

Aim: To investigate the existence of sexual dimorphism between the first and second permanent molars. Methods: A cross-sectional, observational, blind study using comparative and statistical descriptive procedures. The sample included 50 pairs of plaster casts from undergraduate dental students (25 men/25 women) from the Federal University of Paraíba, João Pessoa/PB, Brazil, aged 20-26 years. Odontometric measurements of first and second maxillary/mandibular, right/left permanent molars were performed. Mesiodistal (MD) and buccolingual/palatal (BL/BP) widths and the distance between the lingual cusps of corresponding molars in opposite quadrants, were measured. The data were analyzed by Student’s t test and ANOVA with Bonferroni (p≤0.05). Results: The crowns of all first molars were statistically larger in men than in women (p<0.05). Maxillary and mandibular left second molars (#27 and #37) did not differ in their MD widths (p=0.66, p=0.75), whereas mandibular left and right second molars (#37 and #47) showed statistically different BL widths (p=0.007 and p=0.008). As to the distance between the lingual cusps, only the first left-to-right mandibular molars (#36-46) showed no sex dimorphism (p=0.107). Conclusions: Molars are larger in males than in females. Individually, first molars demonstrated higher evidence of sex distinction than second molars.

https://doi.org/10.20396/bjos.v15i1.8647109
PDF (Português (Brasil))

References

Niquini BTB, Villalobos MIOB, Manzi FR, Bouchardet FCH. [Need of an estimation method by teeth in civil law - case report]. Rev Bras Odontol Legal. 2015;2(2):116-25. Portuguese.

Verma AK, Kumar S, Rathore S, Pandey A. Role of dental expert in forensic odontology. Natl J Maxillofac Surg. 2014 Jan;5(1):2-5. doi: 10.4103/0975-5950.140147.

Frari P, Iwashita ARFG, Caldas JC, Scanavin MA, Daruge Junior E. [The importance of forensic dentistry in human identification processes of mass disaster victims. Suggestion of forensic exam protocol]. Rev Odonto. 2008 Jan-Jun;16(31):38-44. Portuguese.

Araújo LG, Biancalana RC, Terada ASSD, Paranhos LR, Machado CEP, Silva RHA. [Human identification of victims of mass disasters: the importance and role of Forensic Dentistry]. RFO UPF. 2013 May-Aug;18(2):224-9. Portuguese.

Blakaj F, Bicaj T, Bicaj B. Dental identification of a decomposed body. Med Arh. 2010;64(2):125-6.

Terada ASSD, Leite NLP, Silveira TCP, Secchieri JM, Guimarães MA, Silva RHA. Human identification in forensic dentistry from a photographic record of smile: a case report. Rev Odontol UNESP. 2011 Jul-Aug;40(4):199-202.

Kapila R, Nagesh KS, R Iyengar A, Mehkri S. Sexual dimorphism in human mandibular canines: a radiomorphometric study in South Indian population. J Dent Res Dent Clin Dent Prospects. 2011 Spring;5(2):51-4.

Acharya AB, Prabhu S, Muddapur MV. Odontometric sex assessment from logistic regression analysis. Int J Legal Med. 2011 Mar;125(2):199-204. doi: 10.1007/s00414-010-0417-9.

Costa YTF, Lima LNC, Rabello PM. Analysis of canine dimorphism in the estimation of sex. Braz J Oral Sci. 2012 Jul-Sep;11(3):406-10.

Belotti L, Rabbi R, Pereira SDR, Barbosa RS, Carvalho KS, Pacheco KTS. [Is it possible to identify positively a charred body using only two teeth? A forensic case report]. Rev Bras Odontol Legal. 2015;2(2):105- 115. Portuguese.

Macaluso PJ Jr. Sex discrimination potential of permanent maxillary molar cusp diameters. J Forensic Odontostomatol. 2010 Dec 1;28(1):22-31.

Zorba E, Moraitis K, Manolis SK. Sexual dimorphism in permanent teeth of modern Greeks. Forensic Sci Int. 2011 Jul 15;210(1-3):74-81. doi: 10.1016/j.forsciint.2011.02.001.

França GV. Legal Medicine. Rio de Janeiro: Guanabara Koogan; 2015. Portuguese.

Khangura RK, Sircar K, Singh S, Rastogi V. Sex determination using mesiodistal dimension of permanent maxillary incisors and canines. J Forensic Dent Sci. 2011;3(2):81-85.

Vanrell J. [Forensic Dentistry and Forensic Anthropology]. Rio de Janeiro: Guanabara Koogan; 2009. Portuguese.

Naiff DGM, Naiff LAM, Souza MA. College students social representations on racial quotas in public universities in Brazil. Estud. Pesqui. Psicol. 2009;9(1):216-29.

Barros AIM. [Association study between nutrition status and oral health in 6 to 12 years old children / adolescents of a school community] [thesis]. Porto: The Faculty of Nutrition and Food Sciences of the University of Porto; 2010. Portuguese.

Galdames JCS, Matamala DAZ, Smith RL. Blind test of mandibular morphology with sex indicator in subadult mandibles. Int J Morphol. 2008;26(4):845-8.

Hattab FN, Al-Khateeb S, Sultan I. Mesiodistal crown diameters of permanent teeth in Jordanians. Arch Oral Biol. 1996;41(7):641-5.

Lund H, Mörnstad H. Gender determination by odontometrics in a Swedish population. J Forensic Odontostomatol. 1999;17(2):30-4.

Khangura RK, Sircar K, Singh S, Rastogi V. Sex determination using mesiodistal dimension of permanent maxillary incisors and canines. J Forensic Dent Sci. 2011;3(2):81-5.

Shankar S, Anuthama K, Kruthika M, Kumar VS, Ramesh K, Jaheerdeen A, et al. Identifying sexual dimorphism in a paediatric South Indian population using stepwise discriminant function analysis. J Forensic Leg Med. 2013;20(6):752-6.

Vieira S. Bioestatistics: advanced topics. Rio de Janeiro: Elsevier; 2010. Portuguese.

León GJC, Vargas LFP, Tamariz MAC, Luque HJL. [Comparative study of the mesio-distal size between homologous teeth in permanent dentition]. Odontol. Sanmarquina. 2013;16(2):7- 11. Spanish.

Martins Filho IE. [Relationship between gender and tooth measures: a Brazilian study] [thesis]. São Paulo: University of São Paulo, the São Paulo School of Dentistry; 2013. Portuguese.

Ates M, Karaman F, Iscan MY, Erdem TL. Sexual differences in Turkish dentition. Leg Med (Tokyo). 2006 Oct;8(5):288-92.

Angadi PV, Hemani S, Prabhu S, Acharya AB. Analyses of odontometric sexual dimorphism and sex assessment accuracy on a large sample. J Forensic Leg Med. 2013 Aug;20(6):673-7. doi: 10.1016/j.jflm.2013.03.040.

Khan SH, Hassan GS, Rafique T, Hasan N, Russell SH. Mesiodistal crown dimensions of permanent teeth in Bangladeshi population. BSMMU J. 2011;4(2):81-7.

Pereira C. [Forensic dental medicine]. Lisboa: Lidel; 2012.

Ribas-e-Silva V, Terada ASSD, Silva RHA. [The importance of the dentist´s specialized knowledge into Brazilian forensic team]. Rev Bras Odontol Legal. 2015;2(1):68-90. Portuguese.

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