How does studying teeth impressions help in CSI?

How does studying teeth impressions help in CSI?

Richard Saferstein (Former Chief Forensic Scientist) gives expert video advice on: What are 'impressions' that are studied in CSI?; How does the study of tool marks help in CSI?; How are tool marks collected and analyzed in CSI? and more...

Like any other impression, what we look for are individualities associated with the impression and in this case, teeth. Individualities that come about as a result of biological factors such as wear and tear that are associated with the use of the teeth. It is the collection of these factors, however, that must be looked at by a trained individual, and that trained individual is a Forensic Odontologist, who is specifically trained to carry out a comparison of teeth, with teeth impressions, for investigative purposes.