The objective of this study was to determine any significant difference in the thumbprint ridge density of males and females in a central Indian (Marathi) population to enable the determination of gender.The study was conducted on 200 subjects (100 males and 100 females) in the age group of 18–30 years.If the sex of the individual could be established with certainty, the burden of the investigating officer would be reduced by half. They are even used in lieu of signature in India in many important documents including (but not limited to) wills, sale deed, notarized documents, bank cheques, bank documents, property documents, competitive examinations, attendance forms, etc.Thumb impressions are often considered in civil and criminal cases as prominent evidence.Ridge densities on the right- and left-hand thumbprints were determined using a newly designed layout and analysed statistically.
In advanced stages the decay progresses deeper into the innermost layer (pulp) resulting in intense, sharp pain.Tooth decay is the most common (but not the only) cause of a toothache.Small cavities that affect only the outer coating of the tooth (enamel) are usually painless.In this study, 200 Marathi subjects (100 males and 100 females) were chosen randomly from the Central Indian (Marathi) population, aged between 18 and 30 years, residing in Nagpur city, India. Ridge counting was performed in these designated areas and the values were tabulated.The purpose of the study was explained and verbal informed consent was taken from all the subjects’ individually. At the time of counting the number of ridges, this transparency was superimposed on the print (), so that the lower intersection lies on the core/centre of the print, in cases of Whorls and Loops.
Applying the Identification of sex plays a vital role in forensic and medico legal investigations.