The realization that DNA lies behind all the cell's activities led to the development of molecular biology. The technology that uses tandem repeats of individuals is known as DNA fingerprinting. DNA fingerprinting or DNA profile are encrypted sets of numbers that reflect a person's DNA makeup, which can also be used as the person's identifier. DNA fingerprinting is a tool used to unravel all the mysteries associated with the oral cavity and its manifestations during diseased conditions. The technical advances in molecular biology have propelled the analysis of the DNA into routine usage in crime laboratories for rapid and early diagnosis. The anatomical location of teeth and the extent to which teeth may suffer environmental changes and still provide useful DNA material has propelled forensic odontology. The arrival of DNA fingerprinting has revolutionised the concept of identification. It is reasonable to anticipate the future advances in DNA technology will reduce the time and cost factor for identification of unknown deceased.

1. Presented by- MADHURIMA KUNDU

3. DNA Fingerprinting is a way to identify
a certain individual, rather than simply
identifying a species or a particular trait.

6.  Comparative identification:
in which the postmortem dental records are compared
with the antemortem
records of an
individual.

7.  Obtainment of dental information: to narrow the
search for an individual when the antemortem
records are not available and there are no
possible data referred to the identity of the
subject.

8.  Identification of victims following mass
disasters or catastrophes.

9. Dentists are respected widely
as a source of valuable data
that can be used to answer
questions that arise during a
death investigation.

12. Cheiloscopy is a forensic investigation technique that
deals with identification of humans based on lips
traces. The aim of this study is to establish the
uniqueness of lip prints which aids in personal
identification.
Cheiloscopy helps in identifying
the humans based on the lips’
traces. The pattern of wrinkles on
the lips has individual
characteristics like fingerprints.

13. Recently, teeth have been the subject of DNA studies as the
dental hard tissue which physically encloses the pulp and
offers an anatomical configuration of great durability.
Moreover, when
morphologically evaluated,
even a single tooth provides
valuable information regarding
the individual to whom the
tooth belongs.
Pulp tissue is the most widely
used option, since it is
normally abundant and is less
vulnerable to contamination
by non-human DNA.

15. Soft tissue within coronal and radicular pulp chamber
consists of odontoblasts, fibroblasts, endothelial
cells, peripheral nerves and nucleated
components of blood, which are rich
sources of DNA.
Extraction of DNA from the human body remains a difficult task and
depends upon numerous environmental factors and extraction
procedures. DNA from hard tissues like bone and teeth are most stable
even after putrefaction of bodies.

18. THANK YOU