Forensic odontology is the application of dental science to legal investigations. Because teeth are the hardest and most durable structures in the human body, they often survive decomposition, fire and trauma, making dental evidence extremely valuable for the identification of deceased persons.
The forensic odontologist compares ante-mortem and post-mortem dental records, analyses bite marks found on victims or objects, estimates age from tooth development, and assists in mass disaster victim identification.
Identification is achieved by comparing the unique features of an individual's dentition – fillings, extractions, prostheses and root morphology – recorded in ante-mortem dental records with the findings of the post-mortem dental examination.
Bite marks left on skin or food items can be photographed, cast and compared with the suspect's dentition. The arrangement, spacing and peculiarities of teeth may help include or exclude a suspect.

