Toothprints® was developed by a pediatric dentist who began using dental bite impressions as a way of safeguarding his own child, and other young patients. The thermoplastic wafer records the size and shape of a child’s teeth, the tooth position within the arch, and the relationship between upper and lower jaws. Like fingerprints, dental imprints are unique to every person, so bite impressions serve an accurate method of identification--not even identical twins have the same bite characteristics. A Toothprints® impression also captures saliva, which is a powerful source of human scent, thus making the wafer effective for scent-dog tracking. The saliva also provides a DNA sample. The dentist softens the patented thermoplastic wafer in a water bath, and instructs the child to bite down. It's that simple. Parents keep the Toothprints® disc at home in a reclosable bag (provided), for confidentiality and quick access.