Sexual dimorphism in tooth morphometrics: An evaluation of the parameters

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Published Apr 1, 2016
https://doi.org/10.4103/0975-1475.176946
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Volume 8, Issue 1, January-April 2016

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Abhishek Banerjee
Department of Oral and Maxillofacial Pathology, Dr. Syamala Reddy Dental College Hospital and Research Institute, Bangalore, Karnataka
Venkatesh Kamath
Department of Oral and Maxillofacial Pathology, Dr. Syamala Reddy Dental College Hospital and Research Institute, Bangalore, Karnataka
Krishnanand Satelur
Department of Oral and Maxillofacial Pathology, Dr. Syamala Reddy Dental College Hospital and Research Institute, Bangalore, Karnataka
Komali Rajkumar
Department of Oral and Maxillofacial Pathology, Dr. Syamala Reddy Dental College Hospital and Research Institute, Bangalore, Karnataka
Lavanya Sundaram
Department of Oral and Maxillofacial Pathology, Dr. Syamala Reddy Dental College Hospital and Research Institute, Bangalore, Karnataka

Abstract

Aims and Objectives: Sexual dimorphism refers to the variations in tooth size and shape between the sexes. The consistency of these variations is valuable in the identification of the sex of an individual in times of mass disaster when whole body parts get destroyed or are unavailable. There exist differences in the expression of these variables across races and regions. This study aims to tabulate and identify the variations in tooth measurements using standarized reference points in an attempt to establish parameters of sexual dimorphism. Materials and Methods: 100 individuals (50 of each sex) in the age group 19-23 years were assessed for standard morphometric parameters of the maxillary central incisor, canine, premolar and molar. Odontometric measurements of established parameters were recorded from impression casts of the maxillary jaws. The mesiodistal width (MDW), the bucco-ligual width (BLW), the crown length (CL) and the cervical angle (CA) were charted among the teeth. The consistency of the variations was statistically analyzed and a logistic regression table was prepared to identify the sex of the individual from the tooth measurements.Results and Conclusions: The BLW, MDW and CL reflected significant variations among all the teeth to be effective in establishing sexual dimorphism. CA as a parameter was inadequate across all the teeth. The permanent maxillary canine was the most important tooth to be reflective of the gender and statistically significant to be utilized for gender determination.

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How to Cite
Abhishek Banerjee, Venkatesh Kamath, Krishnanand Satelur, Komali Rajkumar, & Lavanya Sundaram. (2016). Sexual dimorphism in tooth morphometrics: An evaluation of the parameters. Journal of Forensic Dental Sciences, 8(1), 22–27. https://doi.org/10.4103/0975-1475.176946
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References

  1. Kieser JA. Human Adult Odontometrics: The Study of Variation in Adult Tooth Size. Cambridge, England: Cambridge University Press; 1990. p. 186‑90.
  2. Garn SM, Lewis AB, Kerewsky RS. Buccolingual size asymmetry and its developmental meaning. Angle Orthod 1967;37:186‑93.
  3. Parekh DH, Patel SV, ZalawadiaAZ, Patel SM. Odontometric study of maxillary canine teeth to establish sexual dimorphism in Gujarat population. Int J Biol Med Res 2012;3:1935-7.
  4. Vodanovic M, Demo Ž, Njemirovskij V, Keos J, Brkic H. Odontometrics: A useful method for sex determination in an archaeological skeletal population? J Archaeol Sci 2007;34:905-13.
  5. Al-Rifaiy MQ, Abdullah MA, Ashraf I, Khan N. Dimorphism of mandibular and maxillary canine teeth in establishing identity. Saudi Dental J 1997;9:17-20.
  6. Eboh DE. A dimorphic study of maxillary first molar crown dimensions of Urhobos in Abraka, South-Southern Nigeria. J Morphol Sci 2012;29:96‑100.
  7. Khangura RK, Sircar K, Singh S, Rastogi V. Sex determination using mesiodistal dimension of permanent maxillary incisors and canines. J Forensic Dent Sci 2011;3:81-5.
  8. Acharya AB, Mainali S. Univariate sex dimorphism in the Nepalese dentition and the use of discriminant functions in gender assessment. Forensic Sci Int 2007;173:47‑56.
  9. Işcan MY, Kedici PS. Sexual variation in bucco‑lingual dimensions in Turkish dentition. Forensic Sci Int 2003;137:160‑4.
  10. Sridhar K, ArunAV, Swamy K, Kumar PK, Kumar CH, Verma KV. Morphometrics of permanent dentition in Chennai population. J Indian Orthod Soc 2011;45:110-8.
  11. Rani Pratibha RM, Mahima VG, Patil K. Bucco-lingual dimensions of teeth: An aid in sex determination. J Forensic Dent Sci 2009;1:88-92.
  12. Kapila R, Nagesh KS, R IyengarA, Mehkri S. Sexual dimorphism in human mandibular canines: A radiomorphometric study in South Indian population. J Dent Res Dent Clin Dent Prospects 2011;5:51-4.
  13. Rai B, Jain R, Duhan J, Dutta S, Dhattarwal S. Importance of maxillary first molar for sex determination. Internet J Dent Sci 2006;4:8238.
  14. Kato A, Kouchi M, Mochimaru M. Geometric morphometric analysis of the crown form of the maxillary central incisor in humans. Dent Anthropol 2011;24:1-10.
  15. Omar A, Azab S. Applicability of determination of gender from odontometric measurements of canine teeth in a sample of adult Egyptian population. Cairo Dent J 2009;167:180.
  16. Girija K, Ambika M. Permanent maxillary first molars: Role in gender determination (Morphometric analysis) J Forensic Dent Sci 2012;4:101-2.
  17. Vishwakarma N, Guha R. A study of sexual dimorphism in permanent mandibular canines and its implications in forensic investigations. Nepal Med Coll J 2011;13:96‑9.
  18. Kaushal S, Patnaik VV, Sood V, Agnihotri G. Sex determination in north Indians using mandibular canine index. J Indian Acad Forensic Med 2004;26:45‑9.
  19. Sonika V, Harshaminder K, Madhushankari GS, Sri Kennath JA. Sexual dimorphism in the permanent maxillary first molar: A study of the Haryana population (India). J Forensic Odontostomatol 2011;29:37-43.
  20. Agnihotri G, Gulati M. Maxillary molar and premolar indices in North Indians: A dimorphic study. Internet J Biol Anthropol 2007;2:15-8.
  21. Agnihotri G, Sikri V. Crown and cusp dimensions of maxillary first molar: A study of sexual dimorphism in Indian Sikhs. Dent Anthropol 2010;21:1‑6.
  22. Ruengdit S, Riengrojpitak S, Tiensuwan M, Santiwong P. Sex determination from teeth size in Thais. Proceeding the 6th CIFS Academic Day. Bangkok, Thailand: Central Institute of Forensic Science; 2011. p. 1-12.
  23. Narang RS, ManchandaAS, Arora PC, Kaur G. Sexual dimorphism in permanent 1st molar: A forensic tool. Indian J Compr Dent Care 2012;2:224-7.
  24. Boaz K, Gupta C. Dimorphism in human maxillary and mandibular canines in establishment of gender. J Forensic Dent Sci 2009;1:42-4.
  25. Sharma P, Singh T, Kumar P, Chandra PK, Sharma R. Sex determination potential of permanent maxillary molar widths and cusp diameters in a North Indian population. JOrthod Sci 2013;2:55‑60.