Reliability of Odontometric Variations as an Important Aid in Gender Determination
DOI:
https://doi.org/10.48165/Keywords:
Buccolingual, Mesiodistal, Cervicoincisal, Odontometric, Gender, Tooth, DimensionsAbstract
Introduction: Determination of gender of human remains in forensic context constitutes an important and essential step in medico-legal examination. The ability of the calcified and inert structures of teeth to resist post-mortem degradation and to survive natural or accidental change has led forensic science experts to focus on the teeth as a possible source for valuable forensic data in poorly preserved human remains. Gender variations in human dentition have been of great help for both forensic odontologists and anthropologists. Assessment of gender from tooth measurements acts as a useful adjunct to identify forensic specimens, as the sizes of teeth show differences between gender of an individual and among different populations. Objectives: The present study aims to determine gender of an individual based on buccolingual, mesiodistal and cervicoincisal dimensions of teeth and analyse if any sexual variations existed in any of the dimensions of maxillary and mandibular teeth except third molars. Materials and methods: The study examined 110 individuals which included 55 males and 55 females in the age group of 18–24 years. Buccolingual, mesiodistal and cervicoincisal dimensions of teeth were measured using digital vernier calliper (.01-mm calibration). Using SPSS version 20, independent t test and stepwise discriminant analysis were applied to the significant mean value and reliability of tooth dimensions. Results: Buccolingual, mesiodistal and cervicoincisal dimensions were larger in males than females. The difference between the means of all the three tooth dimensions in both arches between males and females was statistically significant. All the three different dimensions are independent of each other. There is no relation between the dimensions. Conclusion: Both the arches were studied, and all the three dimensions were evaluated. All the three dimensions were larger in males than females for both the arches. Reliability of buccolingual dimension was found to be more than other dimensions for both the arches of both genders. Mesiodistal and cervicoincisal dimensions were reliable only for maxillary teeth of both the genders.
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References
[1] Pretty IA, Sweet D. A look at forensic dentistry – Part 1: the role of teeth in the determination of human identity. British Dental Journal 2001;190(7):359–66.
[2] Dorion RDJ. Sexual differentiation in human mandible. Journal of the Canadian Society of Forensic Science 1982;15:99–101.
[3] Boaz K, Gupta C. Dimorphism in human maxillary and mandibular canines in establishment of gender. Journal of Forensic Dental Sciences 2009;1:42–4.
[4] Kaushal S, Patnaik VVG, Agnihotri G. Mandibular canines in sex determination. Journal of the Anatomical Society of India 2003;52(2):119–24.
[5] Keiser JA, Groeneveld HT. The unreliability of sex allocation based on human odontometric data. Journal of Forensic Odonto-Stomatology 1989;7:1–12.
[6] Brkic H. Forenzicka stomatologija. Zagreb: Skolska knjiga; 2000.
[7] Vodanovic M, Demo Z, Njemirovskij V, Keros J, Brkic H. Odontometrics: a useful method for sex determination in an archaeological skeletal population?. Journal of Archaeological Science 2007;34:905–13.
[8] Iscan MY, Kedici PS. Sexual variation in bucco-lingual dimensions in Turkish dentition. Forensic Science International 2003;137:160–4.
[9] Acharya AB, Mainali S. Sex discrimination potential of buccolingual and mesiodistal tooth dimensions. Journal of Forensic Sciences 2008;53(4):790–2.
[10] Joseph PA, Harish RK, Mohammed Rajeesh PK, Kumar Vinod RB. How reliable is sex differentiation from teeth measurements. Oral & Maxillofacial Pathology Journal 2013;4(1):289–92.
[11] Girija K and Ambika M. Permanent maxillary first molars: role in gender determination (Morphometric analysis). Journal of Forensic Dental Sciences 2012;4(2):101–102.
[12] Lakhanpal M, Gupta N, Rao NC, Vashisth S. Tooth dimension variations as a gender determinant in permanent maxillary teeth. JSM Dentistry 2013;1(1):1014.
[13] Garn SM, Lewis AB, Kerewsky RS. Sexual dimorphism in the buccolingual tooth diameter. Journal of Dental Research 1996;45:1819.
[14] Garn SM, Lewis AB, Swindler DR, Kerewsky RS. Genetic control of sexual dimorphism in tooth size. Journal of Dental Research 1967;46:963–72.
[15] Pratibha Rani RM, Mahima VG, Patil K. Bucco-lingual dimensions of teeth: an aid in sex determination. Journal of Forensic Dental Sciences 2009;1:88–92.
[16] Rai B, Dhattarwal SK, Anand SC. Sex determination from tooth. Medico Legal Update 2008;8:1–2.
[17] Sonika V, Harshaminder K, Madhushankari GS, Sri Kennath JA. Sexual dimorphism in the permanent maxillary first molar: A study of Haryana population (India). Journal of Forensic Odonto-Stomatology 2011;29:37–43.
[18] Narang SR, Manchanda AS, Arora PC, Kaur G. Sexual dimorphism in permanent 1st molar: A forensic tool. Indian Journal of Comprehensive Dental Care 2012;2:224–7.
[19] Agnihotri G, Sikri V. Crown and cusp dimensions of the maxillary first molar: A study of sexual dimorphism in Indian Sikhs. Dental Anthropology 2010;21:1–6.
