Comparison of Lip Print Patterns in Two Indian Subpopulations and Its Correlation in ABO Blood Groups

Correlation and Comparison of Tongue Print and Lip Print with Blood Group among Dental Students of Jharkhand

Aim

This research set out to determine whether or not there was a connection between the types of lip print patterns found on people's lips and their blood types, as well as between the tongue print patterns found on people's tongues and their blood types.

Material and Methods

One hundred and three females and 51 males participated in our research after providing informed permission after hearing about the study's objectives and potential therapeutic applications.

Results

One hundred and three females and 51 males participated in our research after providing informed permission after hearing about the study's objectives and potential therapeutic applications.

Conclusion

While we did find gender differences in lip print and tongue pattern distribution and blood group, our research did not find statistically significant outcomes between these variables.

Can dead man tooth do tell tales? Tooth prints in forensic identification

Background:

We know that teeth trouble us a lot when we are alive, but they last longer for thousands of years even after we are dead. Teeth being the strongest and resistant structure are the most significant tool in forensic investigations. Patterns of enamel rod end on the tooth surface are known as tooth prints.

Aim:

This study is aimed to know whether these tooth prints can become a forensic tool in personal identification such as finger prints. A study has been targeted toward the same.

Settings and Design:

In the present in-vivo study, acetate peel technique has been used to obtain the replica of enamel rod end patterns.

Materials and Methods:

Tooth prints of upper first premolars were recorded from 80 individuals after acid etching using cellulose acetate strips. Then, digital images of the tooth prints obtained at two different intervals were subjected to biometric conversion using Verifinger standard software development kit version 6.5 software followed by the use of Automated Fingerprint Identification System (AFIS) software for comparison of the tooth prints. Similarly, each individual's finger prints were also recorded and were subjected to the same software.

Statistical Analysis:

Further, recordings of AFIS scores obtained from images were statistically analyzed using Cronbach's test.

Results:

We observed that comparing two tooth prints taken from an individual at two intervals exhibited similarity in many cases, with wavy pattern tooth print being the predominant type. However, the same prints showed dissimilarity when compared with other individuals. We also found that most of the individuals with whorl pattern finger print showed wavy pattern tooth print and few loop type fingerprints showed linear pattern of tooth prints.

Conclusions:

Further more experiments on both tooth prints and finger prints are required in establishing an individual's identity.

Gender determination by radiographic analysis of mental foramen in the Maharashtra population of India

Context:

Identification of gender is of primary importance in forensic investigations when only fragment of skull remains. Mandible is a hard bone and exhibits a high degree of sexual dimorphism. Gender differences were observed in the height of mandible, gonial angle, bigonial breadth, bicondylar breadth, and position of mental foramen (MF).

Aims of the Study:

The purpose of this study is to evaluate gender differences in distances from superior border of MF (SMF) and inferior border of MF (IMF) to the lower border of mandible (LBM) and height of mandible in the Maharashtra population.

Materials and Methods:

A total of 400 patients (200 males and 200 females) were considered for the study. The panoramic radiographs of patients were captured using Xtropan 2000 system and Carestream (T-Mat GIRA) films. The distance from SMF and IMF to the LBM and the height of mandible was measured.

Statistical Analysis Used:

Unpaired t-test was applied to calculate the differences between the genders.

Results:

The distance from SMF and IMF to LBM and height of mandible was more in males when compared to females, which was statistically significant.

Conclusion:

The distances from SMF and IMF to the LBM and height of the mandible showed sexual dimorphism in the Maharashtra population of India.