Related Experiment Video
Updated: Dec 2, 2025
Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
A Study to Determine and Compare Dimorphic Trait of Mandibular Canine between Gujarati and Non-Gujarati Populations
Himanshu Shrivastava1, Nidhi M Shah1, Rumiya Aysha2
1Department of Oral and Maxillofacial Pathology and Microbiology, Aditya Dental College & Hospital, Beed, Maharashtra, India.
Introduction:
Among all teeth, mandibular canine shows greatest variation in dimensions between the sexes, a phenomenon known as sexual dimorphism. This can be immensely beneficial to the forensic investigator for the purposes of both investigation and identification, as it significantly narrows down the possibilities, as the probable perpetrators and/or victims are concerned. Sex identification is an absolute necessity in cases of suicide, homicide, mass, casualties (both manmade or natural), and a tooth, which shows obvious sexual dimorphism can be a useful means of personal identification, especially where there has been extensive decomposition or destruction of facial soft tissue features. Another facet of forensic investigation is identification of racial origin. So, any odontometric parameter showing significant racial divergence can be used as a means of identification.
Aim And Objective:
The aim of this study was to determine and compare cervico-incisal heights and mesiodistal widths of both mandibular canines of the Gujarati and non-Gujarati subjects under study.
Materials And Methods:
The study sample involved 100 participants, divided into four groups, each of the four groups included 25 participants, representing Gujarati males, Gujarati females, non-Gujarati males, and non-Gujarati females, respectively.
Results:
When we compared the mesiodistal and cervico-incisal dimensions of the mandibular canine, both right and left, Gujarati males were found to possess significantly larger sized teeth in comparison to their female counterparts, and the same results were replicated for non-Gujarati males vis-a-vis their female counterparts. Non-Gujarati males and non-Gujarati females were found to have significantly higher odontometric values in comparison with their Gujarati counterparts.
Conclusion:
Gujaratis have smaller sized mandibular canine in comparison with non-Gujaratis. However, studies comparing specific groups are required, as non-Gujaratis are a diverse racial group.
Related Concept Videos
01:21Testing a Claim about Mean: Unknown Population SD
Estimating a population mean requires the samples to be approximately normally distributed. The data should be collected from the randomly selected samples having no sampling bias. There is no specific requirement for sample size. But if the sample size is less than 30, and we don't know the population standard deviation, a different approach is used;...
01:15Teeth
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
01:24Testing a Claim about Population Proportion
There are two methods of testing a claim about a population proportion: (1) Using the sample proportion from the data where a binomial distribution is approximated to the normal distribution and (2) Using the binomial probabilities calculated from the data.
The first method uses normal distribution as an approximation to the binomial distribution. The requirements are as follows: sample size is large...
01:43Incomplete Dominance
01:21Tooth Anatomy
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
01:26Assessment of the Mouth
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.