How are teeth impressions collected and analyzed in CSI?

How are teeth impressions collected and analyzed 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...

The most important thing is to preserve the impression, and that must be done with photography. A forensic photographer will take detailed photos of the impression, and it will be those photos that will be analyzed back in the crime lab. Again, what is looked at are the individualities associated with the impression: the spaces between the teeth, wear and tear associated with the teeth, things of that nature. That can only be done by a trained forensic deontologist.